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' #0 0x00007f3a3b5afc68 llvm::sys::PrintStackTrace(llvm::raw_ostream&) (/usr/lib/llvm-3.9/bin/../lib/libLLVM-3.9.so.1+0x64bc68) #1 0x00007f3a3b5addd6 llvm::sys::RunSignalHandlers() (/usr/lib/llvm-3.9/bin/../lib/libLLVM-3.9.so.1+0x649dd6) #2 0x00007f3a3b5adf0b (/usr/lib/llvm-3.9/bin/../lib/libLLVM-3.9.so.1+0x649f0b) #3 0x00007f3a3db5f150 __restore_rt (/lib/x86_64-linux-gnu/libpthread.so.0+0x13150) #4 0x00007f3a3b554fd7 llvm::FoldingSetImpl::RemoveNode(llvm::FoldingSetImpl::Node*) (/usr/lib/llvm-3.9/bin/../lib/libLLVM-3.9.so.1+0x5f0fd7) #5 0x00007f3a3baa849a llvm::SelectionDAG::RemoveNodeFromCSEMaps(llvm::SDNode*) (/usr/lib/llvm-3.9/bin/../lib/libLLVM-3.9.so.1+0xb4449a) #6 0x00007f3a3baa92b1 llvm::SelectionDAG::MorphNodeTo(llvm::SDNode*, unsigned int, llvm::SDVTList, llvm::ArrayRef) (/usr/lib/llvm-3.9/bin/../lib/libLLVM-3.9.so.1+0xb452b1) #7 0x00007f3a3bab6ded llvm::SelectionDAGISel::MorphNode(llvm::SDNode*, unsigned int, llvm::SDVTList, llvm::ArrayRef, unsigned int) (/usr/lib/llvm-3.9/bin/../lib/libLLVM-3.9.so.1+0xb52ded) #8 0x00007f3a3babce91 llvm::SelectionDAGISel::SelectCodeCommon(llvm::SDNode*, unsigned char const*, unsigned int) (/usr/lib/llvm-3.9/bin/../lib/libLLVM-3.9.so.1+0xb58e91) #9 0x00007f3a3caf2bf7 (/usr/lib/llvm-3.9/bin/../lib/libLLVM-3.9.so.1+0x1b8ebf7) #10 0x00007f3a3bab5999 llvm::SelectionDAGISel::DoInstructionSelection() (/usr/lib/llvm-3.9/bin/../lib/libLLVM-3.9.so.1+0xb51999) #11 0x00007f3a3bab881b llvm::SelectionDAGISel::CodeGenAndEmitDAG() (/usr/lib/llvm-3.9/bin/../lib/libLLVM-3.9.so.1+0xb5481b) #12 0x00007f3a3babf94a llvm::SelectionDAGISel::SelectAllBasicBlocks(llvm::Function const&) (/usr/lib/llvm-3.9/bin/../lib/libLLVM-3.9.so.1+0xb5b94a) #13 0x00007f3a3bac1c0b llvm::SelectionDAGISel::runOnMachineFunction(llvm::MachineFunction&) (/usr/lib/llvm-3.9/bin/../lib/libLLVM-3.9.so.1+0xb5dc0b) #14 0x00007f3a3caf7824 (/usr/lib/llvm-3.9/bin/../lib/libLLVM-3.9.so.1+0x1b93824) #15 0x00007f3a3b7dafd0 llvm::MachineFunctionPass::runOnFunction(llvm::Function&) (/usr/lib/llvm-3.9/bin/../lib/libLLVM-3.9.so.1+0x876fd0) #16 0x00007f3a3b6761c8 llvm::FPPassManager::runOnFunction(llvm::Function&) (/usr/lib/llvm-3.9/bin/../lib/libLLVM-3.9.so.1+0x7121c8) #17 0x00007f3a3b6764eb llvm::FPPassManager::runOnModule(llvm::Module&) (/usr/lib/llvm-3.9/bin/../lib/libLLVM-3.9.so.1+0x7124eb) #18 0x00007f3a3b675a7f llvm::legacy::PassManagerImpl::run(llvm::Module&) (/usr/lib/llvm-3.9/bin/../lib/libLLVM-3.9.so.1+0x711a7f) #19 0x00005577965d5403 clang::EmitBackendOutput(clang::DiagnosticsEngine&, clang::CodeGenOptions const&, clang::TargetOptions const&, clang::LangOptions const&, llvm::DataLayout const&, llvm::Module*, clang::BackendAction, std::unique_ptr >) (/usr/lib/llvm-3.9/bin/clang+0x3a9403) #20 0x0000557796a28ec2 (/usr/lib/llvm-3.9/bin/clang+0x7fcec2) #21 0x0000557796c49c5a clang::ParseAST(clang::Sema&, bool, bool) (/usr/lib/llvm-3.9/bin/clang+0xa1dc5a) #22 0x00005577968fd836 clang::FrontendAction::Execute() (/usr/lib/llvm-3.9/bin/clang+0x6d1836) #23 0x00005577968cdbdc clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) (/usr/lib/llvm-3.9/bin/clang+0x6a1bdc) #24 0x000055779698ee93 clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (/usr/lib/llvm-3.9/bin/clang+0x762e93) #25 0x000055779658fd88 cc1_main(llvm::ArrayRef, char const*, void*) (/usr/lib/llvm-3.9/bin/clang+0x363d88) #26 0x00005577965845ec main (/usr/lib/llvm-3.9/bin/clang+0x3585ec) #27 0x00007f3a3a0801c1 __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x211c1) #28 0x000055779658e16a _start (/usr/lib/llvm-3.9/bin/clang+0x36216a) Stack dump: 0. Program arguments: /usr/lib/llvm-3.9/bin/clang -cc1 -triple x86_64-pc-linux-gnu -emit-obj -disable-free -disable-llvm-verifier -discard-value-names -main-file-name imgwarp.cpp -mrelocation-model pic -pic-level 2 -mthread-model posix -fmath-errno -masm-verbose -mconstructor-aliases -munwind-tables -fuse-init-array -target-cpu x86-64 -target-feature +sse -target-feature +sse2 -target-feature +sse3 -momit-leaf-frame-pointer -dwarf-column-info -debugger-tuning=gdb -ffunction-sections -fdata-sections -coverage-file /home/conan/w/cci_PR-3465/.conan/data/opencv/3.4.12/_/_/build/9fd0aaf5ec6a90a7c0b150744d1569a3cf3538b8/build_subfolder/source_subfolder/modules/imgproc/CMakeFiles/opencv_imgproc.dir/src/imgwarp.cpp.o -resource-dir /usr/lib/llvm-3.9/bin/../lib/clang/3.9.1 -isystem /home/conan/w/cci_PR-3465/.conan/data/eigen/3.3.7/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/eigen3 -isystem /home/conan/w/cci_PR-3465/.conan/data/opencv/3.4.12/_/_/build/9fd0aaf5ec6a90a7c0b150744d1569a3cf3538b8/build_subfolder -D CVAPI_EXPORTS -D _GLIBCXX_USE_CXX11_ABI=0 -D _USE_MATH_DEFINES -D __OPENCV_BUILD=1 -D __STDC_CONSTANT_MACROS -D __STDC_FORMAT_MACROS -D __STDC_LIMIT_MACROS -I /home/conan/w/cci_PR-3465/.conan/data/libpng/1.6.37/_/_/package/dc4f09b054ec4480a12dfc947346bc7ba4586b85/include -I /home/conan/w/cci_PR-3465/.conan/data/jasper/2.0.16/_/_/package/53af28ce003e6d2cec4d8adce96405de8e534717/include -I /home/conan/w/cci_PR-3465/.conan/data/openexr/2.5.2/_/_/package/504932507547060113aef503e95637c243db3455/include/OpenEXR -I /home/conan/w/cci_PR-3465/.conan/data/openexr/2.5.2/_/_/package/504932507547060113aef503e95637c243db3455/include -I /home/conan/w/cci_PR-3465/.conan/data/libtiff/4.1.0/_/_/package/fcd761be492c90dfc49429816bcd6f46138fff46/include -I /home/conan/w/cci_PR-3465/.conan/data/eigen/3.3.7/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include -I /usr/include/gtk-2.0 -I /usr/lib/x86_64-linux-gnu/gtk-2.0/include -I /usr/include/gio-unix-2.0 -I /usr/include/cairo -I /usr/include/pango-1.0 -I /usr/include/atk-1.0 -I /usr/include/pixman-1 -I /usr/include/libpng16 -I /usr/include/gdk-pixbuf-2.0 -I /usr/include/harfbuzz -I /usr/include/glib-2.0 -I /usr/lib/x86_64-linux-gnu/glib-2.0/include -I /usr/include/freetype2 -I /home/conan/w/cci_PR-3465/.conan/data/zlib/1.2.11/_/_/package/80caacb7fb2f820b84697db7dc971a4924654efe/include -I /home/conan/w/cci_PR-3465/.conan/data/libjpeg/9d/_/_/package/80caacb7fb2f820b84697db7dc971a4924654efe/include -I /home/conan/w/cci_PR-3465/.conan/data/xz_utils/5.2.4/_/_/package/80caacb7fb2f820b84697db7dc971a4924654efe/include -I /home/conan/w/cci_PR-3465/.conan/data/jbig/20160605/_/_/package/0aa303f6f52b8211ee4812ea17746efb9a2b453f/include -I /home/conan/w/cci_PR-3465/.conan/data/zstd/1.4.5/_/_/package/80caacb7fb2f820b84697db7dc971a4924654efe/include -I /home/conan/w/cci_PR-3465/.conan/data/libwebp/1.1.0/_/_/package/52959271a1664e26e0d3ebc5a1c2d39fe4403a0c/include -I /home/conan/w/cci_PR-3465/.conan/data/opencv/3.4.12/_/_/build/9fd0aaf5ec6a90a7c0b150744d1569a3cf3538b8/source_subfolder/modules/imgproc/include -I /home/conan/w/cci_PR-3465/.conan/data/opencv/3.4.12/_/_/build/9fd0aaf5ec6a90a7c0b150744d1569a3cf3538b8/build_subfolder/source_subfolder/modules/imgproc -I /home/conan/w/cci_PR-3465/.conan/data/opencv/3.4.12/_/_/build/9fd0aaf5ec6a90a7c0b150744d1569a3cf3538b8/source_subfolder/modules/core/include -D NDEBUG -D NDEBUG -D LZMA_API_STATIC -D LIBJPEG_STATIC -internal-isystem /usr/bin/../lib/gcc/x86_64-linux-gnu/7.2.0/../../../../include/c++/7.2.0 -internal-isystem /usr/bin/../lib/gcc/x86_64-linux-gnu/7.2.0/../../../../include/x86_64-linux-gnu/c++/7.2.0 -internal-isystem /usr/bin/../lib/gcc/x86_64-linux-gnu/7.2.0/../../../../include/x86_64-linux-gnu/c++/7.2.0 -internal-isystem /usr/bin/../lib/gcc/x86_64-linux-gnu/7.2.0/../../../../include/c++/7.2.0/backward -internal-isystem /usr/local/include -internal-isystem /usr/lib/llvm-3.9/bin/../lib/clang/3.9.1/include -internal-externc-isystem /usr/include/x86_64-linux-gnu -internal-externc-isystem /include -internal-externc-isystem /usr/include -O3 -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Winit-self -Wno-delete-non-virtual-dtor -Wno-unnamed-type-template-args -Wno-comment -Wno-long-long -fdeprecated-macro -fdebug-compilation-dir /home/conan/w/cci_PR-3465/.conan/data/opencv/3.4.12/_/_/build/9fd0aaf5ec6a90a7c0b150744d1569a3cf3538b8/build_subfolder/source_subfolder/modules/imgproc -ferror-limit 19 -fmessage-length 0 -fvisibility hidden -fvisibility-inlines-hidden -pthread -fobjc-runtime=gcc -fcxx-exceptions -fexceptions -fdiagnostics-show-option -vectorize-loops -vectorize-slp -o CMakeFiles/opencv_imgproc.dir/src/imgwarp.cpp.o -x c++ /home/conan/w/cci_PR-3465/.conan/data/opencv/3.4.12/_/_/build/9fd0aaf5ec6a90a7c0b150744d1569a3cf3538b8/source_subfolder/modules/imgproc/src/imgwarp.cpp 1. parser at end of file 2. Code generation 3. Running pass 'Function Pass Manager' on module '/home/conan/w/cci_PR-3465/.conan/data/opencv/3.4.12/_/_/build/9fd0aaf5ec6a90a7c0b150744d1569a3cf3538b8/source_subfolder/modules/imgproc/src/imgwarp.cpp'. 4. Running pass 'X86 DAG->DAG Instruction Selection' on function '@_ZN2cvL13remapBilinearINS_4CastIffEENS_10RemapNoVecEfEEvRKNS_3MatERS4_S6_S6_PKviRKNS_7Scalar_IdEE' clang: error: unable to execute command: Segmentation fault (core dumped) clang: error: clang frontend command failed due to signal (use -v to see invocation) clang version 3.9.1-17ubuntu1 (tags/RELEASE_391/rc2) Target: x86_64-pc-linux-gnu Thread model: posix InstalledDir: /usr/bin clang: note: diagnostic msg: PLEASE submit a bug report to http://llvm.org/bugs/ and include the crash backtrace, preprocessed source, and associated run script. clang: note: diagnostic msg: ******************** PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT: Preprocessed source(s) and associated run script(s) are located at: clang: note: diagnostic msg: /tmp/imgwarp-da1274.cpp clang: note: diagnostic msg: /tmp/imgwarp-da1274.sh clang: note: diagnostic msg: ******************** make[2]: *** [source_subfolder/modules/imgproc/CMakeFiles/opencv_imgproc.dir/src/imgwarp.cpp.o] Error 254 make[2]: *** Waiting for unfinished jobs.... make[1]: *** [source_subfolder/modules/imgproc/CMakeFiles/opencv_imgproc.dir/all] Error 2 make: *** [all] Error 2 opencv/3.4.12: WARN: Build folder is dirty, removing it: /home/conan/w/cci_PR-3465/.conan/data/opencv/3.4.12/_/_/build/9fd0aaf5ec6a90a7c0b150744d1569a3cf3538b8 opencv/3.4.12: ERROR: Package '9fd0aaf5ec6a90a7c0b150744d1569a3cf3538b8' build failed opencv/3.4.12: WARN: Build folder /home/conan/w/cci_PR-3465/.conan/data/opencv/3.4.12/_/_/build/9fd0aaf5ec6a90a7c0b150744d1569a3cf3538b8 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/9fd0aaf5ec6a90a7c0b150744d1569a3cf3538b8/build_subfolder' '--' '-j3'