opencv/4.1.2: WARN: Build folder is dirty, removing it: C:\J\w\cci_PR-4270\.conan\data\opencv\4.1.2\_\_\build\2724a318778f457b08d0c2fc6f89e2e842f94185 CMake Warning at source_subfolder/cmake/OpenCVDetectPython.cmake:81 (message): CMake's 'find_host_package(PythonInterp 2.7)' founds wrong Python version: PYTHON_EXECUTABLE=C:/Python36/python.exe PYTHON_VERSION_STRING=3.6.7 Consider specify '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:582 (include) Traceback (most recent call last): File "", line 1, in ModuleNotFoundError: No module named 'numpy'