I am packaging my code into a snap package using snapcraft and ran into this error
[INFO] [launch]: All log files can be found below /home/ragesh/snap/multirobot-sim/x3/.ros/log/2023-05-23-14-05-35-905904-ipa-rar-136909
[INFO] [launch]: Default logging verbosity is set to INFO
Task exception was never retrieved
future: <Task finished name='Task-2' coro=<LaunchService._process_one_event() done, defined at /snap/multirobot-sim/x3/opt/ros/foxy/lib/python3.8/site-packages/launch/launch_service.py:226> exception=InvalidLaunchFileError('')>
Traceback (most recent call last):
File "/snap/multirobot-sim/x3/opt/ros/foxy/lib/python3.8/site-packages/launch/launch_service.py", line 228, in _process_one_event
await self.__process_event(next_event)
File "/snap/multirobot-sim/x3/opt/ros/foxy/lib/python3.8/site-packages/launch/launch_service.py", line 248, in __process_event
visit_all_entities_and_collect_futures(entity, self.__context))
File "/snap/multirobot-sim/x3/opt/ros/foxy/lib/python3.8/site-packages/launch/utilities/visit_all_entities_and_collect_futures_impl.py", line 45, in visit_all_entities_and_collect_futures
futures_to_return += visit_all_entities_and_collect_futures(sub_entity, context)
File "/snap/multirobot-sim/x3/opt/ros/foxy/lib/python3.8/site-packages/launch/utilities/visit_all_entities_and_collect_futures_impl.py", line 45, in visit_all_entities_and_collect_futures
futures_to_return += visit_all_entities_and_collect_futures(sub_entity, context)
File "/snap/multirobot-sim/x3/opt/ros/foxy/lib/python3.8/site-packages/launch/utilities/visit_all_entities_and_collect_futures_impl.py", line 38, in visit_all_entities_and_collect_futures
sub_entities = entity.visit(context)
File "/snap/multirobot-sim/x3/opt/ros/foxy/lib/python3.8/site-packages/launch/action.py", line 108, in visit
return self.execute(context)
File "/snap/multirobot-sim/x3/opt/ros/foxy/lib/python3.8/site-packages/launch/actions/include_launch_description.py", line 130, in execute
launch_description = self.__launch_description_source.get_launch_description(context)
File "/snap/multirobot-sim/x3/opt/ros/foxy/lib/python3.8/site-packages/launch/launch_description_source.py", line 84, in get_launch_description
self._get_launch_description(self.__expanded_location)
File "/snap/multirobot-sim/x3/opt/ros/foxy/lib/python3.8/site-packages/launch/launch_description_sources/any_launch_description_source.py", line 53, in _get_launch_description
return get_launch_description_from_any_launch_file(location)
File "/snap/multirobot-sim/x3/opt/ros/foxy/lib/python3.8/site-packages/launch/launch_description_sources/any_launch_file_utilities.py", line 56, in get_launch_description_from_any_launch_file
raise InvalidLaunchFileError(extension, likely_errors=exceptions)
launch.invalid_launch_file_error.InvalidLaunchFileError: The launch file may have a syntax error, or its format is unknown
My snapcraft.yaml
looks like this
name: multirobot-sim
version: "0.1"
summary: Multirobot simulation for swarmBot project
description: |
This launches a complete simulation with 4 robots and its navigation2 stack
base: core20
confinement: devmode
parts:
multirobot-sim:
plugin: colcon
source: https://github.com/swarmBots-ipa/multirobot_simulation.git
source-branch: rar_devel
build-packages:
- ros-foxy-ros2cli
stage-packages:
- ros-foxy-ros2launch
- ros-foxy-ros2cli
apps:
multirobot-sim:
command: opt/ros/foxy/bin/ros2 launch multirobot_bringup multirobot_bringup.launch.xml
extensions: [ros2-foxy]
plugs: [network, network-bind]
command-chain: [snap/command-chain/ros2-launch]
environment:
PYTHONPATH: $SNAP/opt/ros/foxy/lib/python3.8/site-packages:$SNAP/usr/lib/python3/dist-packages:${PYTHONPATH}
ROS_DISTRO: foxy
ROS_VERSION: '2'
And my launch file is a launchfile.launch.xml
and not launchfile.launch.py.
What could be possiblity of the error and how to fix it.