I ask you, has been an error after using catkin_make catkin_ws root directory, don't know how to solve the
CMake Error at/opt/ros/melodic/share/catkin/CMake/safe_execute_process CMake: 11 (the message) :
Execute_process (/home/bmsys/catkin_ws/build/catkin_generated/env_cached sh
"/usr/bin/python2" "/usr/bin/empy" "- raw - errors" "-f"
"/home/bmsys catkin_ws/build/learning_topic/cmake/learning_topic - genmsg - context. Py"
"-o
""/home/bmsys catkin_ws/build/learning_topic/cmake/learning_topic - genmsg. Cmake"
"/opt/ros/melodic/share/genmsg/cmake/PKG - genmsg. Cmake. Em") returned error
Code 1
The Call Stack (the most recent Call first) :
/opt/ros/melodic/share/catkin/cmake/em_expand cmake: 25 (safe_execute_process)
/opt/ros/melodic/share/genmsg/cmake/genmsg - extras. Cmake: 303 (em_expand)
Learning_topic/CMakeLists. TXT: 80 (generate_messages)


- you incomplete, errors occurred!
See also "/home/bmsys/catkin_ws/build/CMakeFiles/CMakeOutput log".
See also "/home/bmsys/catkin_ws/build/CMakeFiles/CMakeError log".
Makefile: 754: the recipe for target 'cmake_check_build_system failed
Make: * * * [cmake_check_build_system] Error 1
Invoking "make cmake_check_build_system" failed