dpkg-query: no packages found matching libgtk2.0-dev debconf: delaying package configuration, since apt-utils is not installed 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' /usr/bin/ld: /home/conan/w/cci_PR-3465/.conan/data/jasper/2.0.16/_/_/package/49cc7ddb3f7c84b46940a255f275b97e113deadf/lib/libjasper.a(jas_stream.c.o): in function `jas_stream_tmpfile': jas_stream.c:(.text+0x8a7): warning: the use of `tmpnam' is dangerous, better use `mkstemp' CMake Warning: Manually-specified variables were not used by the project: CMAKE_EXPORT_NO_PACKAGE_REGISTRY