Failed to exec method /usr/lib/apt/methods/http

[spmaniato]

Hi @moul , were you able to figure out this error that's mentioned in a comment of your Dockerfile?

# RUN apt-get install -y cowsay # -> failing with: Failed to exec method /usr/lib/apt/methods/http

I'm using a similar QEMU hack (Building ARM containers on any x86 machine, even DockerHub) and I'm running into the same error. The context is slightly different though. Using the hack I mentioned, I can run RUN apt-get install commands, but it fails when such a command is invoked by a Python script creating a child process that runs apt-get install.

Any pointers are very welcome. I will also follow up with the authors of the QEMU hack above.

[moul]

The aptitude cache is probably invalid, try to run this before any apt-get install:

1. apt-get clean
2. apt-get update

[spmaniato]

Thanks for getting back to me! clean and update didn't work. Same error.

I think there's something about the way that third-party Python script (rosdep) is invoking apt-get install. I'll have to look at its source code to figure it out.

For the reference of anyone seeing this as they Google search, I'm keeping track of the issue here: Maidbot/resin-raspberrypi3-ros#1