Compatibility problems when trying to run ROS2 packages

[pizgloria]

Hello,

I am a beginner in ROS2. I installed the container for ROS2 Eloquent and tested the image with the scripts. Everything seems to be fine.

In my container I installed a lot of tools (python, pip, torch) etc, and then proceeded to install some of the packages mentioned here. I am using a JetBot.

However, I cannot run any of the packages, and I get the same error message for every one of them. It says:

Failed to load entry point 'launch': cannot import name 'InvalidLaunchFileError' Traceback (most recent call last): File "/opt/ros/eloquent/bin/ros2", line 11, in <module> load_entry_point('ros2cli==0.8.8', 'console_scripts', 'ros2')() File "/opt/ros/eloquent/lib/python3.6/site-packages/ros2cli/cli.py", line 45, in main required=False) File "/opt/ros/eloquent/lib/python3.6/site-packages/ros2cli/command/__init__.py", line 112, in add_subparsers command_parser, '{cli_name} {name}'.format_map(locals())) File "/opt/ros/eloquent/lib/python3.6/site-packages/ros2topic/command/topic.py", line 32, in add_arguments parser, cli_name, '_verb', verb_extensions, required=False) File "/opt/ros/eloquent/lib/python3.6/site-packages/ros2cli/command/__init__.py", line 112, in add_subparsers command_parser, '{cli_name} {name}'.format_map(locals())) File "/opt/ros/eloquent/lib/python3.6/site-packages/ros2topic/verb/echo.py", line 63, in add_arguments parser, is_publisher=False, default_preset='sensor_data') File "/opt/ros/eloquent/lib/python3.6/site-packages/ros2topic/api/__init__.py", line 198, in add_qos_arguments_to_argument_parser .format(verb, default_profile.reliability.short_key)) AttributeError: 'QoSReliabilityPolicy' object has no attribute 'short_key'

Any ideas on what this could mean?

Thank you.

[eddiem3]

That looks more like an error w/ a specific ROS2 package than an issue w/ the container.