CMake Warning at source_subfolder/cmake/OpenCVDetectPython.cmake:81 (message): CMake's 'find_host_package(PythonInterp 2.7)' founds wrong Python version: PYTHON_EXECUTABLE=/opt/pyenv/versions/3.7.5/bin/python PYTHON_VERSION_STRING=3.7.5 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' CMake Error at source_subfolder/cmake/OpenCVFindLibsGrfmt.cmake:225 (add_subdirectory): add_subdirectory given source "/home/conan/w/cci_PR-4270/.conan/data/opencv/4.1.2/_/_/build/89199a4f1afe1aa3fac89a2ff4bdfdafaf01ac98/source_subfolder/3rdparty/openexr" which is not an existing directory. Call Stack (most recent call first): source_subfolder/CMakeLists.txt:668 (include) opencv/4.1.2: WARN: Build folder is dirty, removing it: /home/conan/w/cci_PR-4270/.conan/data/opencv/4.1.2/_/_/build/89199a4f1afe1aa3fac89a2ff4bdfdafaf01ac98 opencv/4.1.2: ERROR: Package '89199a4f1afe1aa3fac89a2ff4bdfdafaf01ac98' build failed opencv/4.1.2: WARN: Build folder /home/conan/w/cci_PR-4270/.conan/data/opencv/4.1.2/_/_/build/89199a4f1afe1aa3fac89a2ff4bdfdafaf01ac98 ERROR: opencv/4.1.2: Error in build() method, line 275 cmake = self._configure_cmake() while calling '_configure_cmake', line 265 self._cmake.configure(build_folder=self._build_subfolder) ConanException: Error 1 while executing cd '/home/conan/w/cci_PR-4270/.conan/data/opencv/4.1.2/_/_/build/89199a4f1afe1aa3fac89a2ff4bdfdafaf01ac98/build_subfolder' && cmake -G "Unix Makefiles" -DCMAKE_BUILD_TYPE="Release" -DCONAN_IN_LOCAL_CACHE="ON" -DCONAN_COMPILER="clang" -DCONAN_COMPILER_VERSION="7.0" -DCONAN_CXX_FLAGS="-m64" -DCONAN_SHARED_LINKER_FLAGS="-m64" -DCONAN_C_FLAGS="-m64" -DCONAN_LIBCXX="libc++" -DBUILD_SHARED_LIBS="OFF" -DCMAKE_INSTALL_PREFIX="/home/conan/w/cci_PR-4270/.conan/data/opencv/4.1.2/_/_/package/89199a4f1afe1aa3fac89a2ff4bdfdafaf01ac98" -DCMAKE_INSTALL_BINDIR="bin" -DCMAKE_INSTALL_SBINDIR="bin" -DCMAKE_INSTALL_LIBEXECDIR="bin" -DCMAKE_INSTALL_LIBDIR="lib" -DCMAKE_INSTALL_INCLUDEDIR="include" -DCMAKE_INSTALL_OLDINCLUDEDIR="include" -DCMAKE_INSTALL_DATAROOTDIR="share" -DCONAN_CMAKE_POSITION_INDEPENDENT_CODE="ON" -DCMAKE_MODULE_PATH="/home/conan/w/cci_PR-4270/.conan/data/opencv/4.1.2/_/_/build/89199a4f1afe1aa3fac89a2ff4bdfdafaf01ac98" -DCMAKE_EXPORT_NO_PACKAGE_REGISTRY="ON" -DCONAN_EXPORTED="1" -DOPENCV_CONFIG_INSTALL_PATH="cmake" -DOPENCV_BIN_INSTALL_PATH="bin" -DOPENCV_LIB_INSTALL_PATH="lib" -DOPENCV_3P_LIB_INSTALL_PATH="lib" -DOPENCV_OTHER_INSTALL_PATH="res" -DOPENCV_LICENSES_INSTALL_PATH="licenses" -DBUILD_CUDA_STUBS="False" -DBUILD_DOCS="False" -DBUILD_EXAMPLES="False" -DBUILD_FAT_JAVA_LIB="False" -DBUILD_IPP_IW="False" -DBUILD_ITT="False" -DBUILD_JASPER="False" -DBUILD_JAVA="False" -DBUILD_JPEG="False" -DBUILD_OPENEXR="False" -DBUILD_OPENJPEG="False" -DBUILD_TESTS="False" -DBUILD_PROTOBUF="False" -DBUILD_PACKAGE="False" -DBUILD_PERF_TESTS="False" -DBUILD_USE_SYMLINKS="False" -DBUILD_opencv_apps="False" -DBUILD_opencv_java="False" -DBUILD_opencv_java_bindings_gen="False" -DBUILD_opencv_js="False" -DBUILD_ZLIB="False" -DBUILD_PNG="False" -DBUILD_TIFF="False" -DBUILD_WEBP="False" -DBUILD_TBB="False" -DOPENCV_FORCE_3RDPARTY_BUILD="False" -DBUILD_opencv_python2="False" -DBUILD_opencv_python3="False" -DBUILD_opencv_python_bindings_g="False" -DBUILD_opencv_python_tests="False" -DBUILD_opencv_ts="False" -DWITH_1394="False" -DWITH_ADE="False" -DWITH_ARAVIS="False" -DWITH_CLP="False" -DWITH_CUDA="False" -DWITH_CUFFT="False" -DWITH_CUBLAS="False" -DWITH_NVCUVID="False" -DWITH_FFMPEG="False" -DWITH_GSTREAMER="False" -DWITH_HALIDE="False" -DWITH_HPX="False" -DWITH_IMGCODEC_HDR="False" -DWITH_IMGCODEC_PFM="False" -DWITH_IMGCODEC_PXM="False" -DWITH_IMGCODEC_SUNRASTER="False" -DWITH_INF_ENGINE="False" -DWITH_IPP="False" -DWITH_ITT="False" -DWITH_LIBREALSENSE="False" -DWITH_MFX="False" -DWITH_NGRAPH="False" -DWITH_OPENCL="False" -DWITH_OPENCLAMDBLAS="False" -DWITH_OPENCLAMDFFT="False" -DWITH_OPENCL_SVM="False" -DWITH_OPENGL="False" -DWITH_OPENJPEG="False" -DWITH_OPENMP="False" -DWITH_OPENNI="False" -DWITH_OPENNI2="False" -DWITH_OPENVX="False" -DWITH_PLAIDML="False" -DWITH_PROTOBUF="False" -DWITH_PVAPI="False" -DWITH_QT="False" -DWITH_QUIRC="False" -DWITH_V4L="False" -DWITH_VA="False" -DWITH_VA_INTEL="False" -DWITH_VTK="False" -DWITH_VULKAN="False" -DWITH_XIMEA="False" -DWITH_XINE="False" -DWITH_LAPACK="False" -DWITH_GTK="True" -DWITH_GTK_2_X="True" -DWITH_WEBP="True" -DWITH_JPEG="True" -DWITH_PNG="True" -DWITH_TIFF="True" -DWITH_JASPER="True" -DWITH_OPENEXR="True" -DWITH_EIGEN="True" -DHAVE_QUIRC="True" -DWITH_DSHOW="False" -DWITH_MSMF="False" -DWITH_MSMF_DXVA="False" -DOPENCV_MODULES_PUBLIC="opencv" -DOPENEXR_ROOT="/home/conan/w/cci_PR-4270/.conan/data/openexr/2.5.3/_/_/package/6abc4bc216279a5afc96d61efbd11436621926e3" -DENABLE_PIC="True" -Wno-dev '/home/conan/w/cci_PR-4270/.conan/data/opencv/4.1.2/_/_/build/89199a4f1afe1aa3fac89a2ff4bdfdafaf01ac98'