No such file or directory error when installing and running

[mwlock]

After following the provided instructions, I face the following error

[INFO] [launch]: All log files can be found below /home/matt/.ros/log/2022-09-18-16-52-18-092463-matt-linux-18511
[INFO] [launch]: Default logging verbosity is set to INFO
[ERROR] [launch]: Caught exception in launch (see debug for traceback): [Errno 2] No such file or directory: '/opt/ros/humble/share/webots_ros2_epuck/robot_launch.py'

I know for a fact that I have webots_ros2_epuck and am able to launch the simulator manually using

ros2 launch webots_ros2_epuck robot_launch.py

[debbynirwan]

Hi @matthew-william-lock , I have not tested the latest webots and ros humble. There may have been some changes in both.

[syedjawadakhtar]

Too late to answer, but for others.
Hi @matthew-william-lock,
You can edit the launch file mcl/launch/mcl_launch.py
on line 24:
from
os.path.join(package_dir, 'robot_launch.py')
to
os.path.join(package_dir, 'launch/robot_launch.py')

and this will hopefully remove the error.