Can't install using pip

[donamin]

Hi
When I enter this command pip install -e /path/to/cloned/directory, it doesn't install the package. It just shows Obtaining path/to/cloned/directory and nothing happens. Any idea on how to solve it?

[ethanabrooks]

Hi donamin. I forgot to mention in the README that you need to make the package:

cd /path/to/cloned/directory
make

After this everything should work.

[donamin]

@lobachevzky Thanks for your quick response.
FYI, I had to change python to python3 in the makefile to make it work.
And another question, should I have libopengl.so to make it work?
Enter directory containing libOpenGL.so [default is None]:
I just left it without change and it installed.

[ethanabrooks]

libOpenGL.so usually comes bundles with NVIDIA software. If you do not have a GPU, leave it blank/None. This tells the library that you don't have a GPU and prevents it from building the EGL library.

I should, in the interests of full disclosure, admit that I am not an expert in graphics libraries. This is what I have been able to gather from my research and experience working on a few different systems.

Thanks for the tip about python2. I'll look into it.

[donamin]

@lobachevzky thanks for the explanation.
Well I have a GPU so I think it's better to use it in make.
So I did it again using libOpenGL.so directory address. But now it shows me this error:
In file included from build/mujoco/egl.c:592:0: headers/utilEgl.h:4:21: fatal error: EGL/egl.h: No such file or directory compilation terminated. error: command 'x86_64-linux-gnu-gcc' failed with exit status 1 Makefile:7: recipe for target 'default' failed make: *** [default] Error 1
I must admit that I'm not an expert in rendering libraries too :)
Should I install EGL separately?

[ethanabrooks]

Well, from what I gather, it is quite possible that no one who uses the internet is either. By the way, thank you for helping me to work out the kinks in this.

When I am trying to figure out why a program fails to find a particular file on my computer, a tool that I use constantly is mlocate or equivalently findutils. These tools maintain a database of all the files on your computer and efficiently allow you to find any file by name.

Once you download them, run:

sudo updatedb  # Builds the database. Takes a few seconds.
locate EGL/egl.h

When I run locate EGL/egl.h on a computer with an NVIDIA GPU, I get /usr/include/EGL/egl.h.

Let me know what you get. Meanwhile, I will do a little digging and see if I can find out if I had to download anything from NVIDIA to get that piece of software.

[donamin]

Well at first locate command couldn't find anything.
Then I used this command:
sudo apt-get install libgles2-mesa-dev
And now locate produces /usr/include/EGL/egl.h same as you.

Now the make command produces this result:
python3 setup.py build_ext --inplace Enter path to mjkey.txt [default is ~/.mujoco/mjkey.txt]: Enter mjpro150 directory [default is ~/.mujoco/mjpro150]: Enter directory containing libOpenGL.so (None if you don't have a GPU) [default is None]:file:///usr/lib/nvidia-384 Compiling mujoco/glfw.pyx because it changed. Compiling mujoco/egl.pyx because it changed. [1/2] Cythonizing mujoco/egl.pyx [2/2] Cythonizing mujoco/glfw.pyx running build_ext building 'mujoco.glfw' extension creating build/temp.linux-x86_64-3.5 creating build/temp.linux-x86_64-3.5/build creating build/temp.linux-x86_64-3.5/build/mujoco creating build/temp.linux-x86_64-3.5/src x86_64-linux-gnu-gcc -pthread -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -g -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 -fPIC -DMJKEY_PATH="/home/amin/.mujoco/mjkey.txt" -I/home/amin/.mujoco/mjpro150/include -I/usr/local/lib/python3.5/dist-packages/numpy/core/include -Iheaders -Ipxd -I/usr/include/python3.5m -c build/mujoco/glfw.c -o build/temp.linux-x86_64-3.5/build/mujoco/glfw.o -Wno-unused-function In file included from /usr/local/lib/python3.5/dist-packages/numpy/core/include/numpy/ndarraytypes.h:1809:0, from /usr/local/lib/python3.5/dist-packages/numpy/core/include/numpy/ndarrayobject.h:18, from /usr/local/lib/python3.5/dist-packages/numpy/core/include/numpy/arrayobject.h:4, from build/mujoco/glfw.c:586: /usr/local/lib/python3.5/dist-packages/numpy/core/include/numpy/npy_1_7_deprecated_api.h:15:2: warning: #warning "Using deprecated NumPy API, disable it by " "#defining NPY_NO_DEPRECATED_API NPY_1_7_API_VERSION" [-Wcpp] #warning "Using deprecated NumPy API, disable it by " \ ^ x86_64-linux-gnu-gcc -pthread -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -g -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 -fPIC -DMJKEY_PATH="/home/amin/.mujoco/mjkey.txt" -I/home/amin/.mujoco/mjpro150/include -I/usr/local/lib/python3.5/dist-packages/numpy/core/include -Iheaders -Ipxd -I/usr/include/python3.5m -c src/utilGlfw.c -o build/temp.linux-x86_64-3.5/src/utilGlfw.o -Wno-unused-function x86_64-linux-gnu-gcc -pthread -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -g -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 -fPIC -DMJKEY_PATH="/home/amin/.mujoco/mjkey.txt" -I/home/amin/.mujoco/mjpro150/include -I/usr/local/lib/python3.5/dist-packages/numpy/core/include -Iheaders -Ipxd -I/usr/include/python3.5m -c src/util.c -o build/temp.linux-x86_64-3.5/src/util.o -Wno-unused-function creating build/lib.linux-x86_64-3.5 creating build/lib.linux-x86_64-3.5/mujoco x86_64-linux-gnu-gcc -pthread -shared -Wl,-O1 -Wl,-Bsymbolic-functions -Wl,-Bsymbolic-functions -Wl,-z,relro -Wl,-Bsymbolic-functions -Wl,-z,relro -g -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 build/temp.linux-x86_64-3.5/build/mujoco/glfw.o build/temp.linux-x86_64-3.5/src/utilGlfw.o build/temp.linux-x86_64-3.5/src/util.o -L/home/amin/.mujoco/mjpro150/bin -Lfile:///usr/lib/nvidia-384 -lmujoco150 -lGL -lglew -o build/lib.linux-x86_64-3.5/mujoco/glfw.cpython-35m-x86_64-linux-gnu.so -fopenmp /home/amin/.mujoco/mjpro150/bin/libglfw.so.3 building 'mujoco.egl' extension x86_64-linux-gnu-gcc -pthread -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -g -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 -fPIC -DMJ_EGL=1 -DMJKEY_PATH="/home/amin/.mujoco/mjkey.txt" -I/home/amin/.mujoco/mjpro150/include -I/usr/local/lib/python3.5/dist-packages/numpy/core/include -Iheaders -Ipxd -I/usr/include/python3.5m -c build/mujoco/egl.c -o build/temp.linux-x86_64-3.5/build/mujoco/egl.o -Wno-unused-function In file included from /usr/local/lib/python3.5/dist-packages/numpy/core/include/numpy/ndarraytypes.h:1809:0, from /usr/local/lib/python3.5/dist-packages/numpy/core/include/numpy/ndarrayobject.h:18, from /usr/local/lib/python3.5/dist-packages/numpy/core/include/numpy/arrayobject.h:4, from build/mujoco/egl.c:590: /usr/local/lib/python3.5/dist-packages/numpy/core/include/numpy/npy_1_7_deprecated_api.h:15:2: warning: #warning "Using deprecated NumPy API, disable it by " "#defining NPY_NO_DEPRECATED_API NPY_1_7_API_VERSION" [-Wcpp] #warning "Using deprecated NumPy API, disable it by " \ ^ x86_64-linux-gnu-gcc -pthread -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -g -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 -fPIC -DMJ_EGL=1 -DMJKEY_PATH="/home/amin/.mujoco/mjkey.txt" -I/home/amin/.mujoco/mjpro150/include -I/usr/local/lib/python3.5/dist-packages/numpy/core/include -Iheaders -Ipxd -I/usr/include/python3.5m -c src/utilEgl.c -o build/temp.linux-x86_64-3.5/src/utilEgl.o -Wno-unused-function x86_64-linux-gnu-gcc -pthread -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -g -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 -fPIC -DMJ_EGL=1 -DMJKEY_PATH="/home/amin/.mujoco/mjkey.txt" -I/home/amin/.mujoco/mjpro150/include -I/usr/local/lib/python3.5/dist-packages/numpy/core/include -Iheaders -Ipxd -I/usr/include/python3.5m -c src/util.c -o build/temp.linux-x86_64-3.5/src/util.o -Wno-unused-function x86_64-linux-gnu-gcc -pthread -shared -Wl,-O1 -Wl,-Bsymbolic-functions -Wl,-Bsymbolic-functions -Wl,-z,relro -Wl,-Bsymbolic-functions -Wl,-z,relro -g -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 build/temp.linux-x86_64-3.5/build/mujoco/egl.o build/temp.linux-x86_64-3.5/src/utilEgl.o build/temp.linux-x86_64-3.5/src/util.o -L/home/amin/.mujoco/mjpro150/bin -Lfile:///usr/lib/nvidia-384 -lmujoco150 -lOpenGL -lEGL -lglewegl -o build/lib.linux-x86_64-3.5/mujoco/egl.cpython-35m-x86_64-linux-gnu.so -fopenmp /home/amin/.mujoco/mjpro150/bin/libglfw.so.3 /usr/bin/ld: cannot find -lOpenGL collect2: error: ld returned 1 exit status error: command 'x86_64-linux-gnu-gcc' failed with exit status 1 Makefile:7: recipe for target 'default' failed make: *** [default] Error 1

[ethanabrooks]

So for some reason, it looks like gcc can't find libOpenGL.so. It looks like you used a slightly unusual format for specifying the location of your OpenGL dir: file:///usr/lib/nvidia-384. I don't know how setuptools would handle such a file specification but I'm guessing it might throw it off. Try omitting file://.

If you could format the output with triple ticks instead of single ticks, it would help me read it. That way the line breaks and syntax highlighting (if any) are preserved.

[ethanabrooks]

@donamin were you able to resolve this? If not, I'd like to close this issue.

[lbhdc]

@donamin I was having a similar / same issue, and have resolved it.

These were the steps I took to diagnose and fix my issues:

$cd .mujoco/mjpro150/bin/
$./simulate ../model/humanoid.xml

That will launch mjpro150 view, and you should see a figure ragdoll. If instead it gives you the error that it can not find libmujoco150.so, I would verify your LD_LIBRARY_PATH. Along the way I botched mine and it caused all sorts of headaches.

If neither of the above cases return, run make in ~/.mujoco/mjpro150/sample if you haven't already, and try the above again.

In my .bashrc my LD_LIBRARY_PATH looks like this:

export LD_LIBRARY_PATH="$LD_LIBRARY_PATH:/usr/local/cuda/lib64:/usr/local/cuda/extras/CUPTI/lib64:/home/<user_name>/.mujoco/mjpro150/bin/"

I was also trying to use the incorrect OpenGL path in my config.yml. Here is my config file:

mjkey-path: ~/.mujoco/mjkey.txt
mjpro-dir: ~/.mujoco/mjpro150
opengl-dir: /usr/lib/nvidia-384/