Error with GAP8 Docker

[rallen10]

While trying to setup the GAP8 Docker container I run into several errors.

The first of which I was able to work around, and created a pull request to fix.

The next one I ran into, I haven't been able to sort out yet. After running

sudo docker build --tag gapsdk:${GAP_SDK_VERSION} --build-arg GAP_SDK_VERSION=$GAP_SDK_VERSION .

I eventually get the error

E: Failed to fetch http://archive.ubuntu.com/ubuntu/pool/universe/libk/libkml/libkmlbase1_1.3.0-5_amd64.deb  Undetermined Error [IP: 91.189.88.152 80]
E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?
The command '/bin/sh -c apt-get install -y libopencv-dev python3-opencv' returned a non-zero code: 100

Could this perhaps be fixed with the new SDK version

[knmcguire]

Hmm interesting. I haven't seen this before yet and the docker was tried out pretty recently. It seems to be a connection problem. Are you building the docker image from behind a vpn or in a university network perhaps?

[knmcguire]

I just build the docker from scratch but I'm not able to reproduce your failed to fetch issue... and I tried it out on the virtual machine, windows WSL 20.04 and a native ubuntu install of 20.04. Could you try again ? maybe there was something wrong with that repo temporarily, perhaps the server was broken.

[rallen10]

I might have found a fix based on this stackexchange post and the docker file best practices. In short, I added apt-get update && to the line:

RUN apt-get update && apt-get install -y libopencv-dev python3-opencv

And it seemed to work. Specifically I was following the best-practices instruction:

Always combine RUN apt-get update with apt-get install in the same RUN statement.

I can open a pull request for the change if you like

[rallen10]

For resolution, please see pull request here: https://github.com/bitcraze/AIdeck_examples/pull/47/files/734dbf46a58ca81df3d0ba643d828fd0f49ac1d3..19442eeb45b05a8095d41680a6e800804b4c2392