ImportError: "from catkin_pkg.package import parse_package" failed: No module named 'catkin_pkg'
Make sure that you have installed "catkin_pkg", it is up to date and on the PYTHONPATH.
CMake Error at /opt/ros/melodic/share/catkin/cmake/safe_execute_process.cmake:11 (message):
execute_process(/usr/bin/python3
"/opt/ros/melodic/share/catkin/cmake/parse_package_xml.py"
"/opt/ros/melodic/share/catkin/cmake/../package.xml"
"/home/akash/catkin_ws/build/catkin/catkin_generated/version/package.cmake")
returned error code 1
Call Stack (most recent call first):
/opt/ros/melodic/share/catkin/cmake/catkin_package_xml.cmake:74 (safe_execute_process)
/opt/ros/melodic/share/catkin/cmake/all.cmake:168 (_catkin_package_xml)
/opt/ros/melodic/share/catkin/cmake/catkinConfig.cmake:20 (include)
CMakeLists.txt:58 (find_package)
-- Configuring incomplete, errors occurred!
See also "/home/akash/catkin_ws/build/CMakeFiles/CMakeOutput.log".
See also "/home/akash/catkin_ws/build/CMakeFiles/CMakeError.log".
Makefile:320: recipe for target 'cmake_check_build_system' failed
make: *** [cmake_check_build_system] Error 1
Invoking "make cmake_check_build_system" failed
This was the error i am getting and i am very new to ros. i dont know even how to describe this error.
i figured out the answer . What i understood is the catkin_make should able to access python3. So i tried to install catkin_pkg using
pip install catkin_pkg.
But i got a error of
pip not found but can be installed with sudo
So then i installed python 3 pip using
sudo apt install python3-pip
Then i has access to install pip in terminal.so i installed catkin_pkg using
pip3 install catkin_pkg
So then when i try to run catkin_make it runs successfully.
But i couldnot figured how this all worked magically can someone explain me