ServiceQuiz ERROR :

i think i m realy close to finishing service quiz but i keep getting this massage in the web shell


ERROR: cannot launch node of type [services_quiz/]: services_quiz
ROS path [0]=/opt/ros/noetic/share/ros
ROS path [1]=/home/user/catkin_ws/src
ROS path [2]=/home/simulations/public_sim_ws/src
ROS path [3]=/opt/ros/noetic/share
No processes to monitor
shutting down processing monitor…
… shutting down processing monitor complete

can someone give me a hint why it s this happening


That looks like ROS is not finding the services_quiz package.

Have you compiled your worspace and sourced it?

cd ~/catkin_ws
source devel/setup.bash
rospack profile

In addition, please ensure your python file has executable permissions:

chmod +x

Also, ensure that your launch file is correctly written as shown in the examples.