Invoking "make cmake_check_build_system" failed

[PaulSantos8]

I had a problem when i was in this step

Clone this repository into your catkin workspace, install the dependencies and build it:

cd ~/catkin_ws/src/ git clone https://github.com/code-iai/iai_kinect2.git cd iai_kinect2 rosdep install -r --from-paths . cd ~/catkin_ws catkin_make -DCMAKE_BUILD_TYPE="Release"

when I launched this part : catkin_make -DCMAKE_BUILD_TYPE="Release" the output was:

Base path: /home/paul/catkin_ws Source space: /home/paul/catkin_ws/src Build space: /home/paul/catkin_ws/build Devel space: /home/paul/catkin_ws/devel Install space: /home/paul/catkin_ws/install

Running command: "make cmake_check_build_system" in "/home/paul/catkin_ws/build"

-- Using CATKIN_DEVEL_PREFIX: /home/paul/catkin_ws/devel -- Using CMAKE_PREFIX_PATH: /opt/ros/melodic -- This workspace overlays: /opt/ros/melodic -- Found PythonInterp: /usr/bin/python3 (found suitable version "3.6.8", minimum required is "2") -- Using PYTHON_EXECUTABLE: /usr/bin/python3 -- Using Debian Python package layout -- Using empy: /usr/bin/empy -- Using CATKIN_ENABLE_TESTING: ON -- Call enable_testing() -- Using CATKIN_TEST_RESULTS_DIR: /home/paul/catkin_ws/build/test_results -- Found gmock sources under '/usr/src/googletest': gmock will be built -- Found PythonInterp: /usr/bin/python3 (found version "3.6.8") -- Found gtest sources under '/usr/src/googletest': gtests will be built -- Using Python nosetests: /usr/bin/nosetests-2.7 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/paul/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:167 (_catkin_package_xml) /opt/ros/melodic/share/catkin/cmake/catkinConfig.cmake:20 (include) CMakeLists.txt:56 (find_package)

-- Configuring incomplete, errors occurred! See also "/home/paul/catkin_ws/build/CMakeFiles/CMakeOutput.log". See also "/home/paul/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