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FileNotFoundError: Could not find dataset file data/datasets/objectnav/objectnav_hm3d/objectnav_hm3d_10k/train #9

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FileNotFoundError: Could not find dataset file data/datasets/objectnav/objectnav_hm3d/objectnav_hm3d_10k/train#9

Description

@sktalha68
sktalha68
opened on Dec 30, 2024

Hello I am trying to run the training pipeline. When I run the command for objectnav-il.sh I get the following error:

 FileNotFoundError: Could not find dataset file `data/datasets/objectnav/objectnav_hm3d/objectnav_hm3d_10k/train`

The Readme refers this link for downloading:
ObjectNav dataset.

However neither objectnav_hm3d_v1.zip nor objectnav_hm3d_v2.zip has the folder objectnav_hm3d_10k. Can you please guide me regarding this.

When I rename 'objectnav_hm3d_v1' as objectnav_hm3d_10k, and run the code, I get the following error :

Setting up Object Goal sensor
2024-12-30 12:47:06,220 State enc: 640 - 2048 - GRU - 2
2024-12-30 12:47:14,349 Visual Encoder params: 159
2024-12-30 12:47:14,349 Other params: 21
2024-12-30 12:47:14,491 agent number of parameters: 48955078
[12:47:14:784827]:[Physics] PhysicsManager.cpp(50)::~PhysicsManager : Deconstructing PhysicsManager
[12:47:14:784893]:[Scene] SceneManager.h(25)::~SceneManager : Deconstructing SceneManager
[12:47:14:784904]:[Scene] SceneGraph.h(25)::~SceneGraph : Deconstructing SceneGraph
[12:47:14:794061]:[Physics] PhysicsManager.cpp(50)::~PhysicsManager : Deconstructing PhysicsManager
[12:47:14:794112]:[Scene] SceneManager.h(25)::~SceneManager : Deconstructing SceneManager
[12:47:14:794133]:[Scene] SceneGraph.h(25)::~SceneGraph : Deconstructing SceneGraph
[12:47:14:800510]:[Physics] PhysicsManager.cpp(50)::~PhysicsManager : Deconstructing PhysicsManager
[12:47:14:800548]:[Scene] SceneManager.h(25)::~SceneManager : Deconstructing SceneManager
[12:47:14:800554]:[Scene] SceneGraph.h(25)::~SceneGraph : Deconstructing SceneGraph
[12:47:14:802490]:[Sensor] Sensor.cpp(69)::~Sensor : Deconstructing Sensor
[12:47:14:802826]:[Scene] SemanticScene.h(47)::~SemanticScene : Deconstructing SemanticScene
[12:47:14:808722]:[Sensor] Sensor.cpp(69)::~Sensor : Deconstructing Sensor
[12:47:14:808916]:[Scene] SemanticScene.h(47)::~SemanticScene : Deconstructing SemanticScene
[12:47:14:809874]:[Gfx] Renderer.cpp(72)::~Impl : Deconstructing Renderer
[12:47:14:809911]:[Gfx] WindowlessContext.h(17)::~WindowlessContext : Deconstructing WindowlessContext
[12:47:14:816612]:[Sensor] Sensor.cpp(69)::~Sensor : Deconstructing Sensor
[12:47:14:816740]:[Scene] SemanticScene.h(47)::~SemanticScene : Deconstructing SemanticScene
[12:47:14:824091]:[Physics] PhysicsManager.cpp(50)::~PhysicsManager : Deconstructing PhysicsManager
[12:47:14:824142]:[Scene] SceneManager.h(25)::~SceneManager : Deconstructing SceneManager
[12:47:14:824150]:[Scene] SceneGraph.h(25)::~SceneGraph : Deconstructing SceneGraph
[12:47:14:829775]:[Gfx] Renderer.cpp(72)::~Impl : Deconstructing Renderer
[12:47:14:829813]:[Gfx] WindowlessContext.h(17)::~WindowlessContext : Deconstructing WindowlessContext
[12:47:14:832481]:[Gfx] Renderer.cpp(72)::~Impl : Deconstructing Renderer
[12:47:14:832533]:[Gfx] WindowlessContext.h(17)::~WindowlessContext : Deconstructing WindowlessContext
[12:47:14:841052]:[Sensor] Sensor.cpp(69)::~Sensor : Deconstructing Sensor
[12:47:14:841111]:[Scene] SemanticScene.h(47)::~SemanticScene : Deconstructing SemanticScene
[12:47:14:843691]:[Gfx] Renderer.cpp(72)::~Impl : Deconstructing Renderer
[12:47:14:843709]:[Gfx] WindowlessContext.h(17)::~WindowlessContext : Deconstructing WindowlessContext
[12:47:14:847482]:[Physics] PhysicsManager.cpp(50)::~PhysicsManager : Deconstructing PhysicsManager
[12:47:14:847529]:[Scene] SceneManager.h(25)::~SceneManager : Deconstructing SceneManager
[12:47:14:847537]:[Scene] SceneGraph.h(25)::~SceneGraph : Deconstructing SceneGraph
Process ForkServerProcess-8:
Process ForkServerProcess-4:
Process ForkServerProcess-7:
[12:47:14:863370]:[Sensor] Sensor.cpp(69)::~Sensor : Deconstructing Sensor
[12:47:14:863520]:[Scene] SemanticScene.h(47)::~SemanticScene : Deconstructing SemanticScene
Process ForkServerProcess-14:
Traceback (most recent call last):
  File "/home/sheikh/miniforge3/envs/pirlnav-shan/lib/python3.7/multiprocessing/process.py", line 297, in _bootstrap
    self.run()
  File "/home/sheikh/miniforge3/envs/pirlnav-shan/lib/python3.7/multiprocessing/process.py", line 99, in run
    self._target(*self._args, **self._kwargs)
  File "/home/sheikh/miniforge3/envs/pirlnav-shan/lib/python3.7/contextlib.py", line 74, in inner
    return func(*args, **kwds)
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/vector_env.py", line 262, in _worker_env
    observations = env.reset()
  File "/home/sheikh/VLN/shan/pirlnav/pirlnav/environment.py", line 14, in reset
    observations = super().reset()
  File "/home/sheikh/miniforge3/envs/pirlnav-shan/lib/python3.7/contextlib.py", line 74, in inner
    return func(*args, **kwds)
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/env.py", line 402, in reset
    return self._env.reset()
Traceback (most recent call last):
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/env.py", line 252, in reset
    observations = self.task.reset(episode=self.current_episode)
  File "/home/sheikh/VLN/shan/pirlnav/pirlnav/task/object_nav_task.py", line 66, in reset
    obs = super().reset(episode)
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/embodied_task.py", line 287, in reset
    observations=observations, episode=episode, task=self
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/simulator.py", line 229, in get_observations
    return Observations(self.sensors, *args, **kwargs)
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/simulator.py", line 125, in __init__
    for uuid, sensor in sensors.items()
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/simulator.py", line 125, in <listcomp>
    for uuid, sensor in sensors.items()
  File "/home/sheikh/miniforge3/envs/pirlnav-shan/lib/python3.7/multiprocessing/process.py", line 297, in _bootstrap
    self.run()
  File "/home/sheikh/VLN/shan/pirlnav/pirlnav/task/sensors.py", line 59, in get_observation
    return self._get_observation(**kwargs)
  File "/home/sheikh/miniforge3/envs/pirlnav-shan/lib/python3.7/multiprocessing/process.py", line 99, in run
    self._target(*self._args, **self._kwargs)
  File "/home/sheikh/VLN/shan/pirlnav/pirlnav/task/sensors.py", line 49, in _get_observation
    if self.timestep < len(episode.reference_replay):
  File "/home/sheikh/miniforge3/envs/pirlnav-shan/lib/python3.7/contextlib.py", line 74, in inner
    return func(*args, **kwds)
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/vector_env.py", line 262, in _worker_env
    observations = env.reset()
  File "/home/sheikh/VLN/shan/pirlnav/pirlnav/environment.py", line 14, in reset
    observations = super().reset()
TypeError: object of type 'NoneType' has no len()
  File "/home/sheikh/miniforge3/envs/pirlnav-shan/lib/python3.7/contextlib.py", line 74, in inner
    return func(*args, **kwds)
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/env.py", line 402, in reset
    return self._env.reset()
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/env.py", line 252, in reset
    observations = self.task.reset(episode=self.current_episode)
  File "/home/sheikh/VLN/shan/pirlnav/pirlnav/task/object_nav_task.py", line 66, in reset
    obs = super().reset(episode)
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/embodied_task.py", line 287, in reset
    observations=observations, episode=episode, task=self
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/simulator.py", line 229, in get_observations
    return Observations(self.sensors, *args, **kwargs)
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/simulator.py", line 125, in __init__
    for uuid, sensor in sensors.items()
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/simulator.py", line 125, in <listcomp>
    for uuid, sensor in sensors.items()
  File "/home/sheikh/VLN/shan/pirlnav/pirlnav/task/sensors.py", line 59, in get_observation
    return self._get_observation(**kwargs)
  File "/home/sheikh/VLN/shan/pirlnav/pirlnav/task/sensors.py", line 49, in _get_observation
    if self.timestep < len(episode.reference_replay):
Traceback (most recent call last):
Traceback (most recent call last):
TypeError: object of type 'NoneType' has no len()
  File "/home/sheikh/miniforge3/envs/pirlnav-shan/lib/python3.7/multiprocessing/process.py", line 297, in _bootstrap
    self.run()
  File "/home/sheikh/miniforge3/envs/pirlnav-shan/lib/python3.7/multiprocessing/process.py", line 297, in _bootstrap
    self.run()
  File "/home/sheikh/miniforge3/envs/pirlnav-shan/lib/python3.7/multiprocessing/process.py", line 99, in run
    self._target(*self._args, **self._kwargs)
  File "/home/sheikh/miniforge3/envs/pirlnav-shan/lib/python3.7/multiprocessing/process.py", line 99, in run
    self._target(*self._args, **self._kwargs)
  File "/home/sheikh/miniforge3/envs/pirlnav-shan/lib/python3.7/contextlib.py", line 74, in inner
    return func(*args, **kwds)
  File "/home/sheikh/miniforge3/envs/pirlnav-shan/lib/python3.7/contextlib.py", line 74, in inner
    return func(*args, **kwds)
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/vector_env.py", line 262, in _worker_env
    observations = env.reset()
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/vector_env.py", line 262, in _worker_env
    observations = env.reset()
  File "/home/sheikh/VLN/shan/pirlnav/pirlnav/environment.py", line 14, in reset
    observations = super().reset()
  File "/home/sheikh/VLN/shan/pirlnav/pirlnav/environment.py", line 14, in reset
    observations = super().reset()
  File "/home/sheikh/miniforge3/envs/pirlnav-shan/lib/python3.7/contextlib.py", line 74, in inner
    return func(*args, **kwds)
  File "/home/sheikh/miniforge3/envs/pirlnav-shan/lib/python3.7/contextlib.py", line 74, in inner
    return func(*args, **kwds)
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/env.py", line 402, in reset
    return self._env.reset()
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/env.py", line 402, in reset
    return self._env.reset()
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/env.py", line 252, in reset
    observations = self.task.reset(episode=self.current_episode)
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/env.py", line 252, in reset
    observations = self.task.reset(episode=self.current_episode)
  File "/home/sheikh/VLN/shan/pirlnav/pirlnav/task/object_nav_task.py", line 66, in reset
    obs = super().reset(episode)
  File "/home/sheikh/VLN/shan/pirlnav/pirlnav/task/object_nav_task.py", line 66, in reset
    obs = super().reset(episode)
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/embodied_task.py", line 287, in reset
    observations=observations, episode=episode, task=self
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/embodied_task.py", line 287, in reset
    observations=observations, episode=episode, task=self
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/simulator.py", line 229, in get_observations
    return Observations(self.sensors, *args, **kwargs)
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/simulator.py", line 229, in get_observations
    return Observations(self.sensors, *args, **kwargs)
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/simulator.py", line 125, in __init__
    for uuid, sensor in sensors.items()
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/simulator.py", line 125, in __init__
    for uuid, sensor in sensors.items()
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/simulator.py", line 125, in <listcomp>
    for uuid, sensor in sensors.items()
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/simulator.py", line 125, in <listcomp>
    for uuid, sensor in sensors.items()
  File "/home/sheikh/VLN/shan/pirlnav/pirlnav/task/sensors.py", line 59, in get_observation
    return self._get_observation(**kwargs)
  File "/home/sheikh/VLN/shan/pirlnav/pirlnav/task/sensors.py", line 59, in get_observation
    return self._get_observation(**kwargs)
  File "/home/sheikh/VLN/shan/pirlnav/pirlnav/task/sensors.py", line 49, in _get_observation
    if self.timestep < len(episode.reference_replay):
  File "/home/sheikh/VLN/shan/pirlnav/pirlnav/task/sensors.py", line 49, in _get_observation
    if self.timestep < len(episode.reference_replay):
TypeError: object of type 'NoneType' has no len()
TypeError: object of type 'NoneType' has no len()
[12:47:14:868666]:[Gfx] Renderer.cpp(72)::~Impl : Deconstructing Renderer
[12:47:14:868699]:[Gfx] WindowlessContext.h(17)::~WindowlessContext : Deconstructing WindowlessContext
[12:47:14:871522]:[Physics] PhysicsManager.cpp(50)::~PhysicsManager : Deconstructing PhysicsManager
[12:47:14:871577]:[Scene] SceneManager.h(25)::~SceneManager : Deconstructing SceneManager
[12:47:14:871589]:[Scene] SceneGraph.h(25)::~SceneGraph : Deconstructing SceneGraph
[12:47:14:885532]:[Sensor] Sensor.cpp(69)::~Sensor : Deconstructing Sensor
[12:47:14:885627]:[Scene] SemanticScene.h(47)::~SemanticScene : Deconstructing SemanticScene
Traceback (most recent call last):
  File "/home/sheikh/miniforge3/envs/pirlnav-shan/lib/python3.7/runpy.py", line 193, in _run_module_as_main
[12:47:14:886915]:[Physics] PhysicsManager.cpp(50)::~PhysicsManager : Deconstructing PhysicsManager
[12:47:14:886974]:[Scene] SceneManager.h(25)::~SceneManager : Deconstructing SceneManager
[12:47:14:886981]:[Scene] SceneGraph.h(25)::~SceneGraph : Deconstructing SceneGraph
    "__main__", mod_spec)
  File "/home/sheikh/miniforge3/envs/pirlnav-shan/lib/python3.7/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/home/sheikh/VLN/shan/pirlnav/run.py", line 94, in <module>
    main()
  File "/home/sheikh/VLN/shan/pirlnav/run.py", line 42, in main
    run_exp(**vars(args))
  File "/home/sheikh/VLN/shan/pirlnav/run.py", line 90, in run_exp
    execute_exp(config, run_type)
  File "/home/sheikh/VLN/shan/pirlnav/run.py", line 73, in execute_exp
    trainer.train()
  File "/home/sheikh/miniforge3/envs/pirlnav-shan/lib/python3.7/contextlib.py", line 74, in inner
    return func(*args, **kwds)
  File "/home/sheikh/VLN/shan/pirlnav/pirlnav/il_trainer.py", line 317, in train
    self._init_train()
  File "/home/sheikh/VLN/shan/pirlnav/pirlnav/il_trainer.py", line 216, in _init_train
    observations = self.envs.reset()
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/vector_env.py", line 384, in reset
    results.append(read_fn())
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/vector_env.py", line 97, in __call__
    res = self.read_fn()
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/utils/pickle5_multiprocessing.py", line 67, in recv
    buf = self.recv_bytes()
  File "/home/sheikh/miniforge3/envs/pirlnav-shan/lib/python3.7/multiprocessing/connection.py", line 216, in recv_bytes
    buf = self._recv_bytes(maxlength)
  File "/home/sheikh/miniforge3/envs/pirlnav-shan/lib/python3.7/multiprocessing/connection.py", line 407, in _recv_bytes
    buf = self._recv(4)
  File "/home/sheikh/miniforge3/envs/pirlnav-shan/lib/python3.7/multiprocessing/connection.py", line 383, in _recv
    raise EOFError
EOFError
Exception ignored in: <function VectorEnv.__del__ at 0x7ff8141a17a0>
Traceback (most recent call last):
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/vector_env.py", line 592, in __del__
    self.close()
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/vector_env.py", line 460, in close
    read_fn()
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/vector_env.py", line 97, in __call__
    res = self.read_fn()
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/utils/pickle5_multiprocessing.py", line 67, in recv
    buf = self.recv_bytes()
  File "/home/sheikh/miniforge3/envs/pirlnav-shan/lib/python3.7/multiprocessing/connection.py", line 216, in recv_bytes
    buf = self._recv_bytes(maxlength)
  File "/home/sheikh/miniforge3/envs/pirlnav-shan/lib/python3.7/multiprocessing/connection.py", line 407, in _recv_bytes
    buf = self._recv(4)
  File "/home/sheikh/miniforge3/envs/pirlnav-shan/lib/python3.7/multiprocessing/connection.py", line 383, in _recv
    raise EOFError
EOFError:

And when I rename 'objectnav_hm3d_v2' as 'objectnav_hm3d_10k' and run the code I get the following error:

[13:10:24:266068]:[Sim] Simulator.cpp(471)::instanceStageForSceneAttributes : 
---
The active scene does not contain semantic annotations : activeSemanticSceneID_ = 0  
---
[13:10:24:266109]:[Sim] Simulator.cpp(205)::reconfigure : CreateSceneInstance success == true for active scene name : data/scene_datasets/hm3d_v0.2/train/00294-PPTLa8SkUfo/PPTLa8SkUfo.basis.glb  with renderer.
[13:10:24:276380]:[Nav] PathFinder.cpp(410)::build : Building navmesh with 570 x 576 cells
[13:10:24:379362]:[Sim] Simulator.cpp(439)::instanceStageForSceneAttributes : Successfully loaded stage named : data/scene_datasets/hm3d_v0.2/train/00407-NPHxDe6VeCc/NPHxDe6VeCc.basis.glb
[13:10:24:379384]:[Sim] Simulator.cpp(471)::instanceStageForSceneAttributes : 
---
The active scene does not contain semantic annotations : activeSemanticSceneID_ = 0  
---
[13:10:24:379415]:[Sim] Simulator.cpp(205)::reconfigure : CreateSceneInstance success == true for active scene name : data/scene_datasets/hm3d_v0.2/train/00407-NPHxDe6VeCc/NPHxDe6VeCc.basis.glb  with renderer.
[13:10:24:388875]:[Nav] PathFinder.cpp(410)::build : Building navmesh with 414 x 414 cells
[13:10:24:397639]:[Nav] PathFinder.cpp(681)::build : Created navmesh with 823 vertices 417 polygons
[13:10:24:397666]:[Sim] Simulator.cpp(835)::recomputeNavMesh : reconstruct navmesh successful
2024-12-30 13:10:24,398 Initializing task ObjectNav-v2
[13:10:24:474982]:[Nav] PathFinder.cpp(681)::build : Created navmesh with 634 vertices 300 polygons
[13:10:24:475027]:[Sim] Simulator.cpp(835)::recomputeNavMesh : reconstruct navmesh successful
2024-12-30 13:10:24,476 Initializing task ObjectNav-v2
2024-12-30 13:10:24,697 RGB encoder is resnet50
2024-12-30 13:10:24,704 

Setting up GPS sensor
2024-12-30 13:10:24,704 

Setting up Compass sensor
2024-12-30 13:10:24,704 Object categories: 6
2024-12-30 13:10:24,704 

Setting up Object Goal sensor
2024-12-30 13:10:24,704 State enc: 640 - 2048 - GRU - 2
2024-12-30 13:10:32,778 Visual Encoder params: 159
2024-12-30 13:10:32,778 Other params: 21
2024-12-30 13:10:32,914 agent number of parameters: 48955078
[13:10:33:229569]:[Physics] PhysicsManager.cpp(50)::~PhysicsManager : Deconstructing PhysicsManager
[13:10:33:229629]:[Scene] SceneManager.h(25)::~SceneManager : Deconstructing SceneManager
[13:10:33:229635]:[Scene] SceneGraph.h(25)::~SceneGraph : Deconstructing SceneGraph
[13:10:33:242026]:[Physics] PhysicsManager.cpp(50)::~PhysicsManager : Deconstructing PhysicsManager
[13:10:33:242087]:[Scene] SceneManager.h(25)::~SceneManager : Deconstructing SceneManager
[13:10:33:242098]:[Scene] SceneGraph.h(25)::~SceneGraph : Deconstructing SceneGraph
[13:10:33:246208]:[Sensor] Sensor.cpp(69)::~Sensor : Deconstructing Sensor
[13:10:33:246284]:[Scene] SemanticScene.h(47)::~SemanticScene : Deconstructing SemanticScene
[13:10:33:250213]:[Physics] PhysicsManager.cpp(50)::~PhysicsManager : Deconstructing PhysicsManager
[13:10:33:250269]:[Scene] SceneManager.h(25)::~SceneManager : Deconstructing SceneManager
[13:10:33:250276]:[Scene] SceneGraph.h(25)::~SceneGraph : Deconstructing SceneGraph
[13:10:33:251121]:[Gfx] Renderer.cpp(72)::~Impl : Deconstructing Renderer
[13:10:33:251210]:[Gfx] WindowlessContext.h(17)::~WindowlessContext : Deconstructing WindowlessContext
[13:10:33:255019]:[Sensor] Sensor.cpp(69)::~Sensor : Deconstructing Sensor
[13:10:33:255105]:[Scene] SemanticScene.h(47)::~SemanticScene : Deconstructing SemanticScene
[13:10:33:260478]:[Gfx] Renderer.cpp(72)::~Impl : Deconstructing Renderer
[13:10:33:260504]:[Gfx] WindowlessContext.h(17)::~WindowlessContext : Deconstructing WindowlessContext
[13:10:33:262028]:[Sensor] Sensor.cpp(69)::~Sensor : Deconstructing Sensor
[13:10:33:262078]:[Scene] SemanticScene.h(47)::~SemanticScene : Deconstructing SemanticScene
[13:10:33:263160]:[Gfx] Renderer.cpp(72)::~Impl : Deconstructing Renderer
[13:10:33:263184]:[Gfx] WindowlessContext.h(17)::~WindowlessContext : Deconstructing WindowlessContext
Process ForkServerProcess-14:
Process ForkServerProcess-2:
Traceback (most recent call last):
Traceback (most recent call last):
  File "/home/sheikh/miniforge3/envs/pirlnav-shan/lib/python3.7/multiprocessing/process.py", line 297, in _bootstrap
    self.run()
  File "/home/sheikh/miniforge3/envs/pirlnav-shan/lib/python3.7/multiprocessing/process.py", line 297, in _bootstrap
    self.run()
  File "/home/sheikh/miniforge3/envs/pirlnav-shan/lib/python3.7/multiprocessing/process.py", line 99, in run
    self._target(*self._args, **self._kwargs)
  File "/home/sheikh/miniforge3/envs/pirlnav-shan/lib/python3.7/multiprocessing/process.py", line 99, in run
    self._target(*self._args, **self._kwargs)
  File "/home/sheikh/miniforge3/envs/pirlnav-shan/lib/python3.7/contextlib.py", line 74, in inner
    return func(*args, **kwds)
  File "/home/sheikh/miniforge3/envs/pirlnav-shan/lib/python3.7/contextlib.py", line 74, in inner
    return func(*args, **kwds)
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/vector_env.py", line 262, in _worker_env
    observations = env.reset()
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/vector_env.py", line 262, in _worker_env
    observations = env.reset()
  File "/home/sheikh/VLN/shan/pirlnav/pirlnav/environment.py", line 14, in reset
    observations = super().reset()
  File "/home/sheikh/VLN/shan/pirlnav/pirlnav/environment.py", line 14, in reset
    observations = super().reset()
  File "/home/sheikh/miniforge3/envs/pirlnav-shan/lib/python3.7/contextlib.py", line 74, in inner
    return func(*args, **kwds)
  File "/home/sheikh/miniforge3/envs/pirlnav-shan/lib/python3.7/contextlib.py", line 74, in inner
    return func(*args, **kwds)
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/env.py", line 402, in reset
    return self._env.reset()
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/env.py", line 402, in reset
    return self._env.reset()
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/env.py", line 252, in reset
    observations = self.task.reset(episode=self.current_episode)
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/env.py", line 252, in reset
    observations = self.task.reset(episode=self.current_episode)
  File "/home/sheikh/VLN/shan/pirlnav/pirlnav/task/object_nav_task.py", line 66, in reset
    obs = super().reset(episode)
  File "/home/sheikh/VLN/shan/pirlnav/pirlnav/task/object_nav_task.py", line 66, in reset
    obs = super().reset(episode)
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/embodied_task.py", line 287, in reset
    observations=observations, episode=episode, task=self
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/embodied_task.py", line 287, in reset
    observations=observations, episode=episode, task=self
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/simulator.py", line 229, in get_observations
    return Observations(self.sensors, *args, **kwargs)
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/simulator.py", line 229, in get_observations
    return Observations(self.sensors, *args, **kwargs)
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/simulator.py", line 125, in __init__
    for uuid, sensor in sensors.items()
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/simulator.py", line 125, in __init__
    for uuid, sensor in sensors.items()
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/simulator.py", line 125, in <listcomp>
    for uuid, sensor in sensors.items()
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/simulator.py", line 125, in <listcomp>
    for uuid, sensor in sensors.items()
  File "/home/sheikh/VLN/shan/pirlnav/pirlnav/task/sensors.py", line 59, in get_observation
    return self._get_observation(**kwargs)
  File "/home/sheikh/VLN/shan/pirlnav/pirlnav/task/sensors.py", line 59, in get_observation
    return self._get_observation(**kwargs)
  File "/home/sheikh/VLN/shan/pirlnav/pirlnav/task/sensors.py", line 49, in _get_observation
    if self.timestep < len(episode.reference_replay):
  File "/home/sheikh/VLN/shan/pirlnav/pirlnav/task/sensors.py", line 49, in _get_observation
    if self.timestep < len(episode.reference_replay):
TypeError: object of type 'NoneType' has no len()
TypeError: object of type 'NoneType' has no len()
Process ForkServerProcess-12:
Traceback (most recent call last):
  File "/home/sheikh/miniforge3/envs/pirlnav-shan/lib/python3.7/multiprocessing/process.py", line 297, in _bootstrap
    self.run()
  File "/home/sheikh/miniforge3/envs/pirlnav-shan/lib/python3.7/multiprocessing/process.py", line 99, in run
    self._target(*self._args, **self._kwargs)
  File "/home/sheikh/miniforge3/envs/pirlnav-shan/lib/python3.7/contextlib.py", line 74, in inner
    return func(*args, **kwds)
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/vector_env.py", line 262, in _worker_env
    observations = env.reset()
  File "/home/sheikh/VLN/shan/pirlnav/pirlnav/environment.py", line 14, in reset
    observations = super().reset()
  File "/home/sheikh/miniforge3/envs/pirlnav-shan/lib/python3.7/contextlib.py", line 74, in inner
    return func(*args, **kwds)
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/env.py", line 402, in reset
    return self._env.reset()
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/env.py", line 252, in reset
    observations = self.task.reset(episode=self.current_episode)
  File "/home/sheikh/VLN/shan/pirlnav/pirlnav/task/object_nav_task.py", line 66, in reset
    obs = super().reset(episode)
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/embodied_task.py", line 287, in reset
    observations=observations, episode=episode, task=self
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/simulator.py", line 229, in get_observations
    return Observations(self.sensors, *args, **kwargs)
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/simulator.py", line 125, in __init__
    for uuid, sensor in sensors.items()
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/simulator.py", line 125, in <listcomp>
    for uuid, sensor in sensors.items()
  File "/home/sheikh/VLN/shan/pirlnav/pirlnav/task/sensors.py", line 59, in get_observation
    return self._get_observation(**kwargs)
  File "/home/sheikh/VLN/shan/pirlnav/pirlnav/task/sensors.py", line 49, in _get_observation
    if self.timestep < len(episode.reference_replay):
TypeError: object of type 'NoneType' has no len()
[13:10:33:321122]:[Physics] PhysicsManager.cpp(50)::~PhysicsManager : Deconstructing PhysicsManager
[13:10:33:321209]:[Scene] SceneManager.h(25)::~SceneManager : Deconstructing SceneManager
[13:10:33:321217]:[Scene] SceneGraph.h(25)::~SceneGraph : Deconstructing SceneGraph
[13:10:33:335785]:[Sensor] Sensor.cpp(69)::~Sensor : Deconstructing Sensor
[13:10:33:335958]:[Scene] SemanticScene.h(47)::~SemanticScene : Deconstructing SemanticScene
[13:10:33:337344]:[Physics] PhysicsManager.cpp(50)::~PhysicsManager : Deconstructing PhysicsManager
[13:10:33:337521]:[Scene] SceneManager.h(25)::~SceneManager : Deconstructing SceneManager
[13:10:33:337539]:[Scene] SceneGraph.h(25)::~SceneGraph : Deconstructing SceneGraph
[13:10:33:340961]:[Gfx] Renderer.cpp(72)::~Impl : Deconstructing Renderer
[13:10:33:340987]:[Gfx] WindowlessContext.h(17)::~WindowlessContext : Deconstructing WindowlessContext
[13:10:33:349684]:[Sensor] Sensor.cpp(69)::~Sensor : Deconstructing Sensor
[13:10:33:349830]:[Scene] SemanticScene.h(47)::~SemanticScene : Deconstructing SemanticScene
[13:10:33:355829]:[Physics] PhysicsManager.cpp(50)::~PhysicsManager : Deconstructing PhysicsManager
[13:10:33:355915]:[Scene] SceneManager.h(25)::~SceneManager : Deconstructing SceneManager
[13:10:33:355924]:[Scene] SceneGraph.h(25)::~SceneGraph : Deconstructing SceneGraph
[13:10:33:356320]:[Physics] PhysicsManager.cpp(50)::~PhysicsManager : Deconstructing PhysicsManager
[13:10:33:356381]:[Scene] SceneManager.h(25)::~SceneManager : Deconstructing SceneManager
[13:10:33:356388]:[Scene] SceneGraph.h(25)::~SceneGraph : Deconstructing SceneGraph
[13:10:33:356452]:[Gfx] Renderer.cpp(72)::~Impl : Deconstructing Renderer
[13:10:33:356509]:[Gfx] WindowlessContext.h(17)::~WindowlessContext : Deconstructing WindowlessContext
[13:10:33:359492]:[Physics] PhysicsManager.cpp(50)::~PhysicsManager : Deconstructing PhysicsManager
[13:10:33:359553]:[Scene] SceneManager.h(25)::~SceneManager : Deconstructing SceneManager
[13:10:33:359568]:[Scene] SceneGraph.h(25)::~SceneGraph : Deconstructing SceneGraph
[13:10:33:361450]:[Physics] PhysicsManager.cpp(50)::~PhysicsManager : Deconstructing PhysicsManager
[13:10:33:361497]:[Scene] SceneManager.h(25)::~SceneManager : Deconstructing SceneManager
[13:10:33:361505]:[Scene] SceneGraph.h(25)::~SceneGraph : Deconstructing SceneGraph
[13:10:33:361716]:[Physics] PhysicsManager.cpp(50)::~PhysicsManager : Deconstructing PhysicsManager
[13:10:33:361773]:[Scene] SceneManager.h(25)::~SceneManager : Deconstructing SceneManager
[13:10:33:361781]:[Scene] SceneGraph.h(25)::~SceneGraph : Deconstructing SceneGraph
[13:10:33:364372]:[Sensor] Sensor.cpp(69)::~Sensor : Deconstructing Sensor
[13:10:33:364458]:[Sensor] Sensor.cpp(69)::~Sensor : Deconstructing Sensor
[13:10:33:364476]:[Scene] SemanticScene.h(47)::~SemanticScene : Deconstructing SemanticScene
[13:10:33:364567]:[Scene] SemanticScene.h(47)::~SemanticScene : Deconstructing SemanticScene
[13:10:33:367058]:[Sensor] Sensor.cpp(69)::~Sensor : Deconstructing Sensor
[13:10:33:367160]:[Scene] SemanticScene.h(47)::~SemanticScene : Deconstructing SemanticScene
[13:10:33:368896]:[Gfx] Renderer.cpp(72)::~Impl : Deconstructing Renderer
[13:10:33:368929]:[Gfx] WindowlessContext.h(17)::~WindowlessContext : Deconstructing WindowlessContext
[13:10:33:369733]:[Sensor] Sensor.cpp(69)::~Sensor : Deconstructing Sensor
[13:10:33:369770]:[Sensor] Sensor.cpp(69)::~Sensor : Deconstructing Sensor
[13:10:33:369779]:[Gfx] Renderer.cpp(72)::~Impl : Deconstructing Renderer
[13:10:33:369789]:[Scene] SemanticScene.h(47)::~SemanticScene : Deconstructing SemanticScene
[13:10:33:369806]:[Gfx] WindowlessContext.h(17)::~WindowlessContext : Deconstructing WindowlessContext
[13:10:33:369824]:[Scene] SemanticScene.h(47)::~SemanticScene : Deconstructing SemanticScene
[13:10:33:371092]:[Gfx] Renderer.cpp(72)::~Impl : Deconstructing Renderer
[13:10:33:371125]:[Gfx] WindowlessContext.h(17)::~WindowlessContext : Deconstructing WindowlessContext
[13:10:33:372346]:[Gfx] Renderer.cpp(72)::~Impl : Deconstructing Renderer
[13:10:33:372378]:[Gfx] WindowlessContext.h(17)::~WindowlessContext : Deconstructing WindowlessContext
Process ForkServerProcess-11:
Traceback (most recent call last):
  File "/home/sheikh/miniforge3/envs/pirlnav-shan/lib/python3.7/multiprocessing/process.py", line 297, in _bootstrap
    self.run()
  File "/home/sheikh/miniforge3/envs/pirlnav-shan/lib/python3.7/multiprocessing/process.py", line 99, in run
    self._target(*self._args, **self._kwargs)
  File "/home/sheikh/miniforge3/envs/pirlnav-shan/lib/python3.7/contextlib.py", line 74, in inner
    return func(*args, **kwds)
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/vector_env.py", line 262, in _worker_env
    observations = env.reset()
  File "/home/sheikh/VLN/shan/pirlnav/pirlnav/environment.py", line 14, in reset
    observations = super().reset()
  File "/home/sheikh/miniforge3/envs/pirlnav-shan/lib/python3.7/contextlib.py", line 74, in inner
    return func(*args, **kwds)
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/env.py", line 402, in reset
    return self._env.reset()
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/env.py", line 252, in reset
    observations = self.task.reset(episode=self.current_episode)
  File "/home/sheikh/VLN/shan/pirlnav/pirlnav/task/object_nav_task.py", line 66, in reset
    obs = super().reset(episode)
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/embodied_task.py", line 287, in reset
    observations=observations, episode=episode, task=self
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/simulator.py", line 229, in get_observations
    return Observations(self.sensors, *args, **kwargs)
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/simulator.py", line 125, in __init__
    for uuid, sensor in sensors.items()
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/simulator.py", line 125, in <listcomp>
    for uuid, sensor in sensors.items()
  File "/home/sheikh/VLN/shan/pirlnav/pirlnav/task/sensors.py", line 59, in get_observation
    return self._get_observation(**kwargs)
  File "/home/sheikh/VLN/shan/pirlnav/pirlnav/task/sensors.py", line 49, in _get_observation
    if self.timestep < len(episode.reference_replay):
TypeError: object of type 'NoneType' has no len()
Process ForkServerProcess-4:
Process ForkServerProcess-16:
Traceback (most recent call last):
  File "/home/sheikh/miniforge3/envs/pirlnav-shan/lib/python3.7/multiprocessing/process.py", line 297, in _bootstrap
    self.run()
  File "/home/sheikh/miniforge3/envs/pirlnav-shan/lib/python3.7/multiprocessing/process.py", line 99, in run
    self._target(*self._args, **self._kwargs)
  File "/home/sheikh/miniforge3/envs/pirlnav-shan/lib/python3.7/contextlib.py", line 74, in inner
    return func(*args, **kwds)
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/vector_env.py", line 262, in _worker_env
    observations = env.reset()
  File "/home/sheikh/VLN/shan/pirlnav/pirlnav/environment.py", line 14, in reset
    observations = super().reset()
  File "/home/sheikh/miniforge3/envs/pirlnav-shan/lib/python3.7/contextlib.py", line 74, in inner
    return func(*args, **kwds)
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/env.py", line 402, in reset
    return self._env.reset()
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/env.py", line 252, in reset
    observations = self.task.reset(episode=self.current_episode)
  File "/home/sheikh/VLN/shan/pirlnav/pirlnav/task/object_nav_task.py", line 66, in reset
    obs = super().reset(episode)
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/embodied_task.py", line 287, in reset
    observations=observations, episode=episode, task=self
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/simulator.py", line 229, in get_observations
    return Observations(self.sensors, *args, **kwargs)
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/simulator.py", line 125, in __init__
    for uuid, sensor in sensors.items()
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/simulator.py", line 125, in <listcomp>
    for uuid, sensor in sensors.items()
  File "/home/sheikh/VLN/shan/pirlnav/pirlnav/task/sensors.py", line 59, in get_observation
    return self._get_observation(**kwargs)
  File "/home/sheikh/VLN/shan/pirlnav/pirlnav/task/sensors.py", line 49, in _get_observation
    if self.timestep < len(episode.reference_replay):
TypeError: object of type 'NoneType' has no len()
Traceback (most recent call last):
  File "/home/sheikh/miniforge3/envs/pirlnav-shan/lib/python3.7/multiprocessing/process.py", line 297, in _bootstrap
    self.run()
  File "/home/sheikh/miniforge3/envs/pirlnav-shan/lib/python3.7/multiprocessing/process.py", line 99, in run
    self._target(*self._args, **self._kwargs)
  File "/home/sheikh/miniforge3/envs/pirlnav-shan/lib/python3.7/contextlib.py", line 74, in inner
    return func(*args, **kwds)
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/vector_env.py", line 262, in _worker_env
    observations = env.reset()
  File "/home/sheikh/VLN/shan/pirlnav/pirlnav/environment.py", line 14, in reset
    observations = super().reset()
  File "/home/sheikh/miniforge3/envs/pirlnav-shan/lib/python3.7/contextlib.py", line 74, in inner
    return func(*args, **kwds)
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/env.py", line 402, in reset
    return self._env.reset()
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/env.py", line 252, in reset
    observations = self.task.reset(episode=self.current_episode)
  File "/home/sheikh/VLN/shan/pirlnav/pirlnav/task/object_nav_task.py", line 66, in reset
    obs = super().reset(episode)
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/embodied_task.py", line 287, in reset
    observations=observations, episode=episode, task=self
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/simulator.py", line 229, in get_observations
    return Observations(self.sensors, *args, **kwargs)
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/simulator.py", line 125, in __init__
    for uuid, sensor in sensors.items()
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/simulator.py", line 125, in <listcomp>
    for uuid, sensor in sensors.items()
  File "/home/sheikh/VLN/shan/pirlnav/pirlnav/task/sensors.py", line 59, in get_observation
    return self._get_observation(**kwargs)
  File "/home/sheikh/VLN/shan/pirlnav/pirlnav/task/sensors.py", line 49, in _get_observation
    if self.timestep < len(episode.reference_replay):
TypeError: object of type 'NoneType' has no len()
[13:10:33:390238]:[Gfx] Renderer.cpp(72)::~Impl : Deconstructing Renderer
[13:10:33:390274]:[Gfx] WindowlessContext.h(17)::~WindowlessContext : Deconstructing WindowlessContext
Process ForkServerProcess-3:
Traceback (most recent call last):
  File "/home/sheikh/miniforge3/envs/pirlnav-shan/lib/python3.7/multiprocessing/process.py", line 297, in _bootstrap
    self.run()
  File "/home/sheikh/miniforge3/envs/pirlnav-shan/lib/python3.7/multiprocessing/process.py", line 99, in run
    self._target(*self._args, **self._kwargs)
  File "/home/sheikh/miniforge3/envs/pirlnav-shan/lib/python3.7/contextlib.py", line 74, in inner
    return func(*args, **kwds)
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/vector_env.py", line 262, in _worker_env
    observations = env.reset()
  File "/home/sheikh/VLN/shan/pirlnav/pirlnav/environment.py", line 14, in reset
    observations = super().reset()
  File "/home/sheikh/miniforge3/envs/pirlnav-shan/lib/python3.7/contextlib.py", line 74, in inner
    return func(*args, **kwds)
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/env.py", line 402, in reset
    return self._env.reset()
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/env.py", line 252, in reset
    observations = self.task.reset(episode=self.current_episode)
  File "/home/sheikh/VLN/shan/pirlnav/pirlnav/task/object_nav_task.py", line 66, in reset
    obs = super().reset(episode)
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/embodied_task.py", line 287, in reset
    observations=observations, episode=episode, task=self
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/simulator.py", line 229, in get_observations
    return Observations(self.sensors, *args, **kwargs)
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/simulator.py", line 125, in __init__
    for uuid, sensor in sensors.items()
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/simulator.py", line 125, in <listcomp>
    for uuid, sensor in sensors.items()
  File "/home/sheikh/VLN/shan/pirlnav/pirlnav/task/sensors.py", line 59, in get_observation
    return self._get_observation(**kwargs)
  File "/home/sheikh/VLN/shan/pirlnav/pirlnav/task/sensors.py", line 49, in _get_observation
    if self.timestep < len(episode.reference_replay):
TypeError: object of type 'NoneType' has no len()
Process ForkServerProcess-10:
Process ForkServerProcess-5:
Traceback (most recent call last):
  File "/home/sheikh/miniforge3/envs/pirlnav-shan/lib/python3.7/multiprocessing/process.py", line 297, in _bootstrap
    self.run()
  File "/home/sheikh/miniforge3/envs/pirlnav-shan/lib/python3.7/multiprocessing/process.py", line 99, in run
    self._target(*self._args, **self._kwargs)
  File "/home/sheikh/miniforge3/envs/pirlnav-shan/lib/python3.7/contextlib.py", line 74, in inner
    return func(*args, **kwds)
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/vector_env.py", line 262, in _worker_env
    observations = env.reset()
  File "/home/sheikh/VLN/shan/pirlnav/pirlnav/environment.py", line 14, in reset
    observations = super().reset()
  File "/home/sheikh/miniforge3/envs/pirlnav-shan/lib/python3.7/contextlib.py", line 74, in inner
    return func(*args, **kwds)
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/env.py", line 402, in reset
    return self._env.reset()
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/env.py", line 252, in reset
    observations = self.task.reset(episode=self.current_episode)
  File "/home/sheikh/VLN/shan/pirlnav/pirlnav/task/object_nav_task.py", line 66, in reset
    obs = super().reset(episode)
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/embodied_task.py", line 287, in reset
    observations=observations, episode=episode, task=self
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/simulator.py", line 229, in get_observations
    return Observations(self.sensors, *args, **kwargs)
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/simulator.py", line 125, in __init__
    for uuid, sensor in sensors.items()
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/simulator.py", line 125, in <listcomp>
    for uuid, sensor in sensors.items()
  File "/home/sheikh/VLN/shan/pirlnav/pirlnav/task/sensors.py", line 59, in get_observation
    return self._get_observation(**kwargs)
  File "/home/sheikh/VLN/shan/pirlnav/pirlnav/task/sensors.py", line 49, in _get_observation
    if self.timestep < len(episode.reference_replay):
TypeError: object of type 'NoneType' has no len()
Traceback (most recent call last):
  File "/home/sheikh/miniforge3/envs/pirlnav-shan/lib/python3.7/multiprocessing/process.py", line 297, in _bootstrap
    self.run()
  File "/home/sheikh/miniforge3/envs/pirlnav-shan/lib/python3.7/multiprocessing/process.py", line 99, in run
    self._target(*self._args, **self._kwargs)
  File "/home/sheikh/miniforge3/envs/pirlnav-shan/lib/python3.7/contextlib.py", line 74, in inner
    return func(*args, **kwds)
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/vector_env.py", line 262, in _worker_env
    observations = env.reset()
  File "/home/sheikh/VLN/shan/pirlnav/pirlnav/environment.py", line 14, in reset
    observations = super().reset()
  File "/home/sheikh/miniforge3/envs/pirlnav-shan/lib/python3.7/contextlib.py", line 74, in inner
    return func(*args, **kwds)
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/env.py", line 402, in reset
    return self._env.reset()
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/env.py", line 252, in reset
    observations = self.task.reset(episode=self.current_episode)
  File "/home/sheikh/VLN/shan/pirlnav/pirlnav/task/object_nav_task.py", line 66, in reset
    obs = super().reset(episode)
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/embodied_task.py", line 287, in reset
    observations=observations, episode=episode, task=self
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/simulator.py", line 229, in get_observations
    return Observations(self.sensors, *args, **kwargs)
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/simulator.py", line 125, in __init__
    for uuid, sensor in sensors.items()
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/simulator.py", line 125, in <listcomp>
    for uuid, sensor in sensors.items()
  File "/home/sheikh/VLN/shan/pirlnav/pirlnav/task/sensors.py", line 59, in get_observation
    return self._get_observation(**kwargs)
  File "/home/sheikh/VLN/shan/pirlnav/pirlnav/task/sensors.py", line 49, in _get_observation
    if self.timestep < len(episode.reference_replay):
TypeError: object of type 'NoneType' has no len()
[13:10:33:400425]:[Physics] PhysicsManager.cpp(50)::~PhysicsManager : Deconstructing PhysicsManager
[13:10:33:400563]:[Scene] SceneManager.h(25)::~SceneManager : Deconstructing SceneManager
[13:10:33:400589]:[Scene] SceneGraph.h(25)::~SceneGraph : Deconstructing SceneGraph
[13:10:33:407587]:[Sensor] Sensor.cpp(69)::~Sensor : Deconstructing Sensor
[13:10:33:407754]:[Scene] SemanticScene.h(47)::~SemanticScene : Deconstructing SemanticScene
[13:10:33:414385]:[Gfx] Renderer.cpp(72)::~Impl : Deconstructing Renderer
[13:10:33:414430]:[Gfx] WindowlessContext.h(17)::~WindowlessContext : Deconstructing WindowlessContext
Process ForkServerProcess-13:
Traceback (most recent call last):
  File "/home/sheikh/miniforge3/envs/pirlnav-shan/lib/python3.7/multiprocessing/process.py", line 297, in _bootstrap
    self.run()
  File "/home/sheikh/miniforge3/envs/pirlnav-shan/lib/python3.7/multiprocessing/process.py", line 99, in run
    self._target(*self._args, **self._kwargs)
  File "/home/sheikh/miniforge3/envs/pirlnav-shan/lib/python3.7/contextlib.py", line 74, in inner
    return func(*args, **kwds)
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/vector_env.py", line 262, in _worker_env
    observations = env.reset()
  File "/home/sheikh/VLN/shan/pirlnav/pirlnav/environment.py", line 14, in reset
    observations = super().reset()
  File "/home/sheikh/miniforge3/envs/pirlnav-shan/lib/python3.7/contextlib.py", line 74, in inner
    return func(*args, **kwds)
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/env.py", line 402, in reset
    return self._env.reset()
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/env.py", line 252, in reset
    observations = self.task.reset(episode=self.current_episode)
  File "/home/sheikh/VLN/shan/pirlnav/pirlnav/task/object_nav_task.py", line 66, in reset
    obs = super().reset(episode)
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/embodied_task.py", line 287, in reset
    observations=observations, episode=episode, task=self
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/simulator.py", line 229, in get_observations
    return Observations(self.sensors, *args, **kwargs)
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/simulator.py", line 125, in __init__
    for uuid, sensor in sensors.items()
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/simulator.py", line 125, in <listcomp>
    for uuid, sensor in sensors.items()
  File "/home/sheikh/VLN/shan/pirlnav/pirlnav/task/sensors.py", line 59, in get_observation
    return self._get_observation(**kwargs)
  File "/home/sheikh/VLN/shan/pirlnav/pirlnav/task/sensors.py", line 49, in _get_observation
    if self.timestep < len(episode.reference_replay):
TypeError: object of type 'NoneType' has no len()
[13:10:33:421606]:[Physics] PhysicsManager.cpp(50)::~PhysicsManager : Deconstructing PhysicsManager
[13:10:33:421715]:[Scene] SceneManager.h(25)::~SceneManager : Deconstructing SceneManager
[13:10:33:421725]:[Scene] SceneGraph.h(25)::~SceneGraph : Deconstructing SceneGraph
[13:10:33:424967]:[Sensor] Sensor.cpp(69)::~Sensor : Deconstructing Sensor
[13:10:33:425078]:[Scene] SemanticScene.h(47)::~SemanticScene : Deconstructing SemanticScene
Process ForkServerProcess-8:
[13:10:33:427811]:[Gfx] Renderer.cpp(72)::~Impl : Deconstructing Renderer
[13:10:33:427849]:[Gfx] WindowlessContext.h(17)::~WindowlessContext : Deconstructing WindowlessContext
Traceback (most recent call last):
  File "/home/sheikh/miniforge3/envs/pirlnav-shan/lib/python3.7/multiprocessing/process.py", line 297, in _bootstrap
    self.run()
  File "/home/sheikh/miniforge3/envs/pirlnav-shan/lib/python3.7/multiprocessing/process.py", line 99, in run
    self._target(*self._args, **self._kwargs)
  File "/home/sheikh/miniforge3/envs/pirlnav-shan/lib/python3.7/contextlib.py", line 74, in inner
    return func(*args, **kwds)
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/vector_env.py", line 262, in _worker_env
    observations = env.reset()
  File "/home/sheikh/VLN/shan/pirlnav/pirlnav/environment.py", line 14, in reset
    observations = super().reset()
  File "/home/sheikh/miniforge3/envs/pirlnav-shan/lib/python3.7/contextlib.py", line 74, in inner
    return func(*args, **kwds)
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/env.py", line 402, in reset
    return self._env.reset()
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/env.py", line 252, in reset
    observations = self.task.reset(episode=self.current_episode)
  File "/home/sheikh/VLN/shan/pirlnav/pirlnav/task/object_nav_task.py", line 66, in reset
    obs = super().reset(episode)
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/embodied_task.py", line 287, in reset
    observations=observations, episode=episode, task=self
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/simulator.py", line 229, in get_observations
    return Observations(self.sensors, *args, **kwargs)
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/simulator.py", line 125, in __init__
    for uuid, sensor in sensors.items()
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/simulator.py", line 125, in <listcomp>
    for uuid, sensor in sensors.items()
  File "/home/sheikh/VLN/shan/pirlnav/pirlnav/task/sensors.py", line 59, in get_observation
    return self._get_observation(**kwargs)
  File "/home/sheikh/VLN/shan/pirlnav/pirlnav/task/sensors.py", line 49, in _get_observation
    if self.timestep < len(episode.reference_replay):
TypeError: object of type 'NoneType' has no len()
Process ForkServerProcess-9:
[13:10:33:432320]:[Physics] PhysicsManager.cpp(50)::~PhysicsManager : Deconstructing PhysicsManager
[13:10:33:432372]:[Scene] SceneManager.h(25)::~SceneManager : Deconstructing SceneManager
[13:10:33:432379]:[Scene] SceneGraph.h(25)::~SceneGraph : Deconstructing SceneGraph
Traceback (most recent call last):
  File "/home/sheikh/miniforge3/envs/pirlnav-shan/lib/python3.7/multiprocessing/process.py", line 297, in _bootstrap
    self.run()
  File "/home/sheikh/miniforge3/envs/pirlnav-shan/lib/python3.7/multiprocessing/process.py", line 99, in run
    self._target(*self._args, **self._kwargs)
  File "/home/sheikh/miniforge3/envs/pirlnav-shan/lib/python3.7/contextlib.py", line 74, in inner
    return func(*args, **kwds)
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/vector_env.py", line 262, in _worker_env
    observations = env.reset()
  File "/home/sheikh/VLN/shan/pirlnav/pirlnav/environment.py", line 14, in reset
    observations = super().reset()
  File "/home/sheikh/miniforge3/envs/pirlnav-shan/lib/python3.7/contextlib.py", line 74, in inner
    return func(*args, **kwds)
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/env.py", line 402, in reset
    return self._env.reset()
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/env.py", line 252, in reset
    observations = self.task.reset(episode=self.current_episode)
  File "/home/sheikh/VLN/shan/pirlnav/pirlnav/task/object_nav_task.py", line 66, in reset
    obs = super().reset(episode)
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/embodied_task.py", line 287, in reset
    observations=observations, episode=episode, task=self
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/simulator.py", line 229, in get_observations
    return Observations(self.sensors, *args, **kwargs)
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/simulator.py", line 125, in __init__
    for uuid, sensor in sensors.items()
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/simulator.py", line 125, in <listcomp>
    for uuid, sensor in sensors.items()
  File "/home/sheikh/VLN/shan/pirlnav/pirlnav/task/sensors.py", line 59, in get_observation
    return self._get_observation(**kwargs)
  File "/home/sheikh/VLN/shan/pirlnav/pirlnav/task/sensors.py", line 49, in _get_observation
    if self.timestep < len(episode.reference_replay):
TypeError: object of type 'NoneType' has no len()
[13:10:33:434995]:[Sensor] Sensor.cpp(69)::~Sensor : Deconstructing Sensor
[13:10:33:435092]:[Scene] SemanticScene.h(47)::~SemanticScene : Deconstructing SemanticScene
[13:10:33:436306]:[Physics] PhysicsManager.cpp(50)::~PhysicsManager : Deconstructing PhysicsManager
Traceback (most recent call last):
  File "/home/sheikh/miniforge3/envs/pirlnav-shan/lib/python3.7/runpy.py", line 193, in _run_module_as_main
[13:10:33:436361]:[Scene] SceneManager.h(25)::~SceneManager : Deconstructing SceneManager
[13:10:33:436368]:[Scene] SceneGraph.h(25)::~SceneGraph : Deconstructing SceneGraph
    "__main__", mod_spec)
  File "/home/sheikh/miniforge3/envs/pirlnav-shan/lib/python3.7/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/home/sheikh/VLN/shan/pirlnav/run.py", line 94, in <module>
    main()
  File "/home/sheikh/VLN/shan/pirlnav/run.py", line 42, in main
    run_exp(**vars(args))
  File "/home/sheikh/VLN/shan/pirlnav/run.py", line 90, in run_exp
    execute_exp(config, run_type)
  File "/home/sheikh/VLN/shan/pirlnav/run.py", line 73, in execute_exp
    trainer.train()
  File "/home/sheikh/miniforge3/envs/pirlnav-shan/lib/python3.7/contextlib.py", line 74, in inner
    return func(*args, **kwds)
  File "/home/sheikh/VLN/shan/pirlnav/pirlnav/il_trainer.py", line 317, in train
    self._init_train()
  File "/home/sheikh/VLN/shan/pirlnav/pirlnav/il_trainer.py", line 216, in _init_train
    observations = self.envs.reset()
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/vector_env.py", line 384, in reset
    results.append(read_fn())
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/vector_env.py", line 97, in __call__
    res = self.read_fn()
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/utils/pickle5_multiprocessing.py", line 67, in recv
    buf = self.recv_bytes()
  File "/home/sheikh/miniforge3/envs/pirlnav-shan/lib/python3.7/multiprocessing/connection.py", line 216, in recv_bytes
    buf = self._recv_bytes(maxlength)
  File "/home/sheikh/miniforge3/envs/pirlnav-shan/lib/python3.7/multiprocessing/connection.py", line 407, in _recv_bytes
    buf = self._recv(4)
  File "/home/sheikh/miniforge3/envs/pirlnav-shan/lib/python3.7/multiprocessing/connection.py", line 383, in _recv
    raise EOFError
EOFError
Exception ignored in: <function VectorEnv.__del__ at 0x7f053ef9b7a0>
Traceback (most recent call last):
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/vector_env.py", line 592, in __del__
    self.close()
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/vector_env.py", line 460, in close
    read_fn()
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/core/vector_env.py", line 97, in __call__
    res = self.read_fn()
  File "/home/sheikh/VLN/shan/pirlnav/habitat-lab/habitat/utils/pickle5_multiprocessing.py", line 67, in recv
    buf = self.recv_bytes()
  File "/home/sheikh/miniforge3/envs/pirlnav-shan/lib/python3.7/multiprocessing/connection.py", line 216, in recv_bytes
    buf = self._recv_bytes(maxlength)
  File "/home/sheikh/miniforge3/envs/pirlnav-shan/lib/python3.7/multiprocessing/connection.py", line 407, in _recv_bytes
    buf = self._recv(4)
  File "/home/sheikh/miniforge3/envs/pirlnav-shan/lib/python3.7/multiprocessing/connection.py", line 383, in _recv
    raise EOFError
EOFError:

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