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opencv_python3 unresolved external symbol "int __cdecl cv::pollKey(void)" #20090
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- OpenCV => 4.2.5
- Operating System / Platform => Windows 64 Bit
- Compiler => Visual Studio 2019
I am trying to compile OpenCV from source and getting this undefined error.
Severity Code Description Project File Line Suppression State
Error LNK2019 unresolved external symbol "int __cdecl cv::pollKey(void)" (?pollKey@cv@@yahxz) referenced in function "struct _object * __cdecl pyopencv_cv_pollKey(struct _object *,struct _object *,struct _object *)" (?pyopencv_cv_pollKey@@YAPEAU_object@@PEAU1@00@Z) opencv_python3 C:\OpenCV\build\modules\python3\cv2.obj
Error LNK1120 1 unresolved externals opencv_python3 C:\OpenCV\build\lib\python3\Debug\cv2.cp39-win_amd64.pyd
My CMake configuration is below
Selecting Windows SDK version 10.0.19041.0 to target Windows 10.0.19042.
Detected processor: AMD64
libjpeg-turbo: VERSION = 2.0.6, BUILD = opencv-4.5.2-libjpeg-turbo
Could NOT find OpenJPEG (minimal suitable version: 2.0, recommended version >= 2.3.1). OpenJPEG will be built from sources
OpenJPEG: VERSION = 2.4.0, BUILD = opencv-4.5.2-openjp2-2.4.0
OpenJPEG libraries will be built from sources: libopenjp2 (version "2.4.0")
Found TBB (cmake): C:/Program Files (x86)/Intel/oneAPI/tbb/2021.2.0/redist/intel64/vc14/tbb12.dll
found Intel IPP (ICV version): 2020.0.0 [2020.0.0 Gold]
at: C:/OpenCV/build/3rdparty/ippicv/ippicv_win/icv
found Intel IPP Integration Wrappers sources: 2020.0.0
at: C:/OpenCV/build/3rdparty/ippicv/ippicv_win/iw
CUDA detected: 11.3
CUDA: Using CUDA_ARCH_BIN=3.5;3.7;5.0;5.2;6.0;6.1;7.0;7.5;8.0;8.6
CUDA NVCC target flags: -gencode;arch=compute_35,code=sm_35;-gencode;arch=compute_37,code=sm_37;-gencode;arch=compute_50,code=sm_50;-gencode;arch=compute_52,code=sm_52;-gencode;arch=compute_60,code=sm_60;-gencode;arch=compute_61,code=sm_61;-gencode;arch=compute_70,code=sm_70;-gencode;arch=compute_75,code=sm_75;-gencode;arch=compute_80,code=sm_80;-gencode;arch=compute_86,code=sm_86;-D_FORCE_INLINES
CUDA: MSVS generator is detected. Disabling CMake re-run checks (CMAKE_SUPPRESS_REGENERATION=ON). You need to run CMake manually if updates are required.
Could not find OpenBLAS include. Turning OpenBLAS_FOUND off
Could not find OpenBLAS lib. Turning OpenBLAS_FOUND off
Could NOT find BLAS (missing: BLAS_LIBRARIES)
Could NOT find LAPACK (missing: LAPACK_LIBRARIES)
Reason given by package: LAPACK could not be found because dependency BLAS could not be found.
Could NOT find JNI (missing: JAVA_AWT_LIBRARY JAVA_JVM_LIBRARY JAVA_INCLUDE_PATH JAVA_INCLUDE_PATH2 JAVA_AWT_INCLUDE_PATH)
Found VTK 9.0.1
OpenCV Python: during development append to PYTHONPATH: C:/OpenCV/build/python_loader
Could NOT find PkgConfig (missing: PKG_CONFIG_EXECUTABLE)
Caffe: NO
Protobuf: NO
Glog: NO
freetype2: NO
harfbuzz: NO
Julia not found. Not compiling Julia Bindings.
Module opencv_ovis disabled because OGRE3D was not found
No preference for use of exported gflags CMake configuration set, and no hints for include/library directories provided. Defaulting to preferring an installed/exported gflags CMake configuration if available.
Failed to find installed gflags CMake configuration, searching for gflags build directories exported with CMake.
Failed to find gflags - Failed to find an installed/exported CMake configuration for gflags, will perform search for installed gflags components.
Failed to find gflags - Could not find gflags include directory, set GFLAGS_INCLUDE_DIR to directory containing gflags/gflags.h
Failed to find glog - Could not find glog include directory, set GLOG_INCLUDE_DIR to directory containing glog/logging.h
Module opencv_sfm disabled because the following dependencies are not found: Glog/Gflags
Tesseract: NO
Allocator metrics storage type: 'long long'
Registering hook 'INIT_MODULE_SOURCES_opencv_dnn': C:/OpenCV/source-4.5.2/modules/dnn/cmake/hooks/INIT_MODULE_SOURCES_opencv_dnn.cmake
Building with NVIDIA Optical Flow API 2.0
DNNL_CONFIGURATION: cpu_dpcpp_gpu_dpcpp
SYCL/OpenCL samples are skipped: SYCL SDK is required
- check configuration of SYCL_DIR/SYCL_ROOT/CMAKE_MODULE_PATH
- ensure that right compiler is selected from SYCL SDK (e.g, clang++): CMAKE_CXX_COMPILER=C:/Program Files (x86)/Microsoft Visual Studio/2019/Community/VC/Tools/MSVC/14.28.29910/bin/Hostx64/x64/cl.exe
CMake Warning at cmake/OpenCVGenSetupVars.cmake:54 (message):
CONFIGURATION IS NOT SUPPORTED: validate setupvars script in install
directory
Call Stack (most recent call first):
CMakeLists.txt:1010 (include)
General configuration for OpenCV 4.5.2 =====================================
Version control: unknown
Extra modules:
Location (extra): C:/OpenCV/source_contrib-4.5.2/modules
Version control (extra): unknown
Platform:
Timestamp: 2021-05-14T13:27:53Z
Host: Windows 10.0.19042 AMD64
CMake: 3.20.2
CMake generator: Visual Studio 16 2019
CMake build tool: C:/Program Files (x86)/Microsoft Visual Studio/2019/Community/MSBuild/Current/Bin/MSBuild.exe
MSVC: 1928
Configuration: Debug Release
CPU/HW features:
Baseline: SSE SSE2 SSE3
requested: SSE3
Dispatched code generation: SSE4_1 SSE4_2 FP16 AVX AVX2 AVX512_SKX
requested: SSE4_1 SSE4_2 AVX FP16 AVX2 AVX512_SKX
SSE4_1 (17 files): + SSSE3 SSE4_1
SSE4_2 (2 files): + SSSE3 SSE4_1 POPCNT SSE4_2
FP16 (1 files): + SSSE3 SSE4_1 POPCNT SSE4_2 FP16 AVX
AVX (5 files): + SSSE3 SSE4_1 POPCNT SSE4_2 AVX
AVX2 (31 files): + SSSE3 SSE4_1 POPCNT SSE4_2 FP16 FMA3 AVX AVX2
AVX512_SKX (7 files): + SSSE3 SSE4_1 POPCNT SSE4_2 FP16 FMA3 AVX AVX2 AVX_512F AVX512_COMMON AVX512_SKX
C/C++:
Built as dynamic libs?: YES
C++ standard: 11
C++ Compiler: C:/Program Files (x86)/Microsoft Visual Studio/2019/Community/VC/Tools/MSVC/14.28.29910/bin/Hostx64/x64/cl.exe (ver 19.28.29914.0)
C++ flags (Release): /DWIN32 /D_WINDOWS /W4 /GR /D _CRT_SECURE_NO_DEPRECATE /D _CRT_NONSTDC_NO_DEPRECATE /D _SCL_SECURE_NO_WARNINGS /Gy /bigobj /Oi /fp:fast /EHa /wd4127 /wd4251 /wd4324 /wd4275 /wd4512 /wd4589 /MP /MD /O2 /Ob2 /DNDEBUG
C++ flags (Debug): /DWIN32 /D_WINDOWS /W4 /GR /D _CRT_SECURE_NO_DEPRECATE /D _CRT_NONSTDC_NO_DEPRECATE /D _SCL_SECURE_NO_WARNINGS /Gy /bigobj /Oi /fp:fast /EHa /wd4127 /wd4251 /wd4324 /wd4275 /wd4512 /wd4589 /MP /MDd /Zi /Ob0 /Od /RTC1
C Compiler: C:/Program Files (x86)/Microsoft Visual Studio/2019/Community/VC/Tools/MSVC/14.28.29910/bin/Hostx64/x64/cl.exe
C flags (Release): /DWIN32 /D_WINDOWS /W3 /D _CRT_SECURE_NO_DEPRECATE /D _CRT_NONSTDC_NO_DEPRECATE /D _SCL_SECURE_NO_WARNINGS /Gy /bigobj /Oi /fp:fast /MP /MD /O2 /Ob2 /DNDEBUG
C flags (Debug): /DWIN32 /D_WINDOWS /W3 /D _CRT_SECURE_NO_DEPRECATE /D _CRT_NONSTDC_NO_DEPRECATE /D _SCL_SECURE_NO_WARNINGS /Gy /bigobj /Oi /fp:fast /MP /MDd /Zi /Ob0 /Od /RTC1
Linker flags (Release): /machine:x64 /INCREMENTAL:NO
Linker flags (Debug): /machine:x64 /debug /INCREMENTAL
ccache: NO
Precompiled headers: YES
Extra dependencies: opengl32 glu32 cudart_static.lib nppc.lib nppial.lib nppicc.lib nppidei.lib nppif.lib nppig.lib nppim.lib nppist.lib nppisu.lib nppitc.lib npps.lib cublas.lib cudnn.lib cufft.lib -LIBPATH:C:/Program Files/NVIDIA GPU Computing Toolkit/CUDA/v11.3/lib/x64
3rdparty dependencies:
OpenCV modules:
To be built: alphamat aruco bgsegm bioinspired calib3d ccalib core cudaarithm cudabgsegm cudacodec cudafeatures2d cudafilters cudaimgproc cudalegacy cudaobjdetect cudaoptflow cudastereo cudawarping cudev cvv datasets dnn dnn_objdetect dnn_superres dpm face features2d flann fuzzy gapi hdf hfs highgui img_hash imgcodecs imgproc intensity_transform line_descriptor mcc ml objdetect optflow phase_unwrapping photo plot python3 quality rapid reg rgbd saliency shape stereo stitching structured_light superres surface_matching text tracking ts video videoio videostab viz wechat_qrcode xfeatures2d ximgproc xobjdetect xphoto
Disabled: world
Disabled by dependency: -
Unavailable: cnn_3dobj freetype java julia matlab ovis python2 sfm
Applications: tests perf_tests examples apps
Documentation: NO
Non-free algorithms: NO
Windows RT support: NO
GUI:
QT: YES (ver 5.15.2)
QT OpenGL support: YES (Qt5::OpenGL 5.15.2)
Win32 UI: YES
OpenGL support: YES (opengl32 glu32)
VTK support: YES (ver 9.0.1)
Media I/O:
ZLib: build (ver 1.2.11)
JPEG: build-libjpeg-turbo (ver 2.0.6-62)
WEBP: build (ver encoder: 0x020f)
PNG: build (ver 1.6.37)
TIFF: build (ver 42 - 4.2.0)
JPEG 2000: build (ver 2.4.0)
OpenEXR: build (ver 2.3.0)
HDR: YES
SUNRASTER: YES
PXM: YES
PFM: YES
Video I/O:
DC1394: NO
FFMPEG: YES (prebuilt binaries)
avcodec: YES (58.91.100)
avformat: YES (58.45.100)
avutil: YES (56.51.100)
swscale: YES (5.7.100)
avresample: YES (4.0.0)
GStreamer: NO
DirectShow: YES
Media Foundation: YES
DXVA: YES
Parallel framework: TBB (ver 2021.2 interface 12020)
Trace: YES (with Intel ITT)
Other third-party libraries:
Intel IPP: 2020.0.0 Gold [2020.0.0]
at: C:/OpenCV/build/3rdparty/ippicv/ippicv_win/icv
Intel IPP IW: sources (2020.0.0)
at: C:/OpenCV/build/3rdparty/ippicv/ippicv_win/iw
Lapack: NO
Eigen: YES (ver 3.3.9)
Custom HAL: NO
Protobuf: build (3.5.1)
NVIDIA CUDA: YES (ver 11.3, CUFFT CUBLAS FAST_MATH)
NVIDIA GPU arch: 35 37 50 52 60 61 70 75 80 86
NVIDIA PTX archs:
cuDNN: YES (ver 8.2.0)
OpenCL: YES (NVD3D11)
Include path: C:/OpenCV/source-4.5.2/3rdparty/include/opencl/1.2
Link libraries: Dynamic load
Python 3:
Interpreter: C:/Python39/python.exe (ver 3.9.5)
Libraries: optimized C:/Python39/libs/python39.lib debug C:/Python39/libs/python39_d.lib (ver 3.9.5)
numpy: C:/Python39/lib/site-packages/numpy/core/include (ver 1.20.3)
install path: C:/Python39/Lib/site-packages/cv2/python-3.9
Python (for build): C:/Python27/python.exe
Java:
ant: NO
JNI: NO
Java wrappers: NO
Java tests: NO
Install to: C:/OpenCV
-----------------------------------------------------------------
Configuring done
Is there anyone has got similar error?
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