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Troubleshooting

Installing roboco

Problem: pip install fails

pip install roboco fails with an error such as the following:

Could not find a version that satisfies the requirement roboco (from versions: )
No matching distribution found for roboco

Solution

If you are on python 3.6 or below, see #problem-old-python-version.

If you are on python 3.7 or above, this may be because you are using an old version of pip. Try upgrading pip using pip install --upgrade pip.

Problem: Old Python Version

If you are on python 3.6 or below, you cannot install roboco to guide you through creating a new container, but you can still use the Dockerfile templates.

Solution

Download the template you want to use from src/roboco/templates and rename it to Dockerfile, download src/roboco/run.py, and place these both in your project.

Edit run.py to include a name for your project:

10 # Configuration. Change these to suit your project.
11 PROJECT_NAME = "please_change_project_name"

Add executable permissions to run.py:

chmod +x ./run.py

Now you can build and run the container:

./run.py

Building images

Problem: apt-get update fails

apt-get update fails with an error message like

Get:2 http://packages.ros.org/ros/ubuntu focal InRelease [4679 B]
#5 1.232 Err:2 http://packages.ros.org/ros/ubuntu focal InRelease
#5 1.232   At least one invalid signature was encountered.

Solution

  1. Download the newest docker image for your ROS distro. E.g. docker pull osrf/ros:noetic-desktop-full
  2. If that does not fix the issue, try running docker system prune to free up space allocated to docker. https://stackoverflow.com/questions/59139453/repository-is-not-signed-in-docker-build