CMake Warning at source_subfolder/cmake/OpenCVDetectPython.cmake:81 (message): CMake's 'find_host_package(PythonInterp 2.7)' found wrong Python version: PYTHON_EXECUTABLE=/opt/pyenv/versions/3.7.5/bin/python PYTHON_VERSION_STRING=3.7.5 Consider providing the 'PYTHON2_EXECUTABLE' variable via CMake command line or environment variables Call Stack (most recent call first): source_subfolder/cmake/OpenCVDetectPython.cmake:271 (find_python) source_subfolder/CMakeLists.txt:606 (include) Traceback (most recent call last): File "", line 1, in ModuleNotFoundError: No module named 'numpy' g++: fatal error: Terminated signal terminated program cc1plus compilation terminated. make[2]: *** [source_subfolder/modules/core/CMakeFiles/opencv_core.dir/src/arithm.dispatch.cpp.o] Error 1 make[2]: *** Waiting for unfinished jobs.... g++: fatal error: Terminated signal terminated program cc1plus compilation terminated. make[2]: *** [source_subfolder/modules/core/CMakeFiles/opencv_core.dir/src/async.cpp.o] Error 1 g++: fatal error: Terminated signal terminated program cc1plus compilation terminated. make[2]: *** [source_subfolder/modules/core/CMakeFiles/opencv_core.dir/src/batch_distance.cpp.o] Error 1 make[1]: *** [source_subfolder/modules/core/CMakeFiles/opencv_core.dir/all] Error 2 make: *** [all] Error 2 opencv/3.4.12: ERROR: Package '9ffeb1c39cc4e6188f7e098fb852cfebecb5b04c' build failed opencv/3.4.12: WARN: Build folder /home/conan/w/cci_PR-3465/.conan/data/opencv/3.4.12/_/_/build/9ffeb1c39cc4e6188f7e098fb852cfebecb5b04c ERROR: opencv/3.4.12: Error in build() method, line 191 cmake.build() ConanException: Error 2 while executing cmake --build '/home/conan/w/cci_PR-3465/.conan/data/opencv/3.4.12/_/_/build/9ffeb1c39cc4e6188f7e098fb852cfebecb5b04c/build_subfolder' '--' '-j3' Terminated