An error occurred when running ：roskaunch detection_pkg detection_pkg.launch

[han7937]

`roslaunch detection_pkg detection_py.launch
... logging to /home/hz/.ros/log/178ad0d8-541d-11ec-b8fc-59a0b966e85e/roslaunch-hz-6986.log
Checking log directory for disk usage. This may take a while.
Press Ctrl-C to interrupt
Done checking log file disk usage. Usage is <1GB.

started roslaunch server http://hz:33899/

SUMMARY

PARAMETERS

• /rosdistro: noetic
• /rosversion: 1.15.13

NODES
/
detecor_from_input (detection_pkg/detector_from_input.py)
detector_sub (detection_pkg/detector_sub.py)

auto-starting new master
process[master]: started with pid [6994]
ROS_MASTER_URI=http://localhost:11311

setting /run_id to 178ad0d8-541d-11ec-b8fc-59a0b966e85e
process[rosout-1]: started with pid [7005]
started core service [/rosout]
RLException: Roslaunch got a 'No such file or directory' error while attempting to run:

/home/hz/Detectron2OnROS/detection_ROS/catkin_ws/src/detection_pkg/scripts/detector_from_input.py __name:=detecor_from_input __log:=/home/hz/.ros/log/178ad0d8-541d-11ec-b8fc-59a0b966e85e/detecor_from_input-2.log

Please make sure that all the executables in this command exist and have
executable permission. This is often caused by a bad launch-prefix.
The traceback for the exception was written to the log file
[detecor_from_input-2] killing on exit
[rosout-1] killing on exit
[master] killing on exit
`