get erro when run make

[zhuhongyue]

Here is the log:

[ 33%] Automatic moc for target compute_flow [ 33%] Built target compute_flow_automoc Scanning dependencies of target compute_flow [ 66%] Building CXX object CMakeFiles/compute_flow.dir/compute_flow.o /home/mzy/zero-shot4video/gpu_flow/compute_flow.cpp: In function ‘int main(int, char**)’: /home/mzy/zero-shot4video/gpu_flow/compute_flow.cpp:263:11: warning: unused variable ‘fx’ [-Wunused-variable] FILE fx = fopen(outfile.c_str(),"wb"); ^ /home/mzy/zero-shot4video/gpu_flow/compute_flow.cpp:282:44: warning: variable ‘width_out’ set but not used [-Wunused-but-set-variable] int nframes = 0, width = 0, height = 0, width_out = 0, height_out = 0; ^ /home/mzy/zero-shot4video/gpu_flow/compute_flow.cpp:282:59: warning: variable ‘height_out’ set but not used [-Wunused-but-set-variable] int nframes = 0, width = 0, height = 0, width_out = 0, height_out = 0; ^ /home/mzy/zero-shot4video/gpu_flow/compute_flow.cpp: In function ‘void cv::DefaultDeleter<Y>::operator()(Y) const [with Y = cv::flann::KDTreeIndexParams]’: /home/mzy/zero-shot4video/gpu_flow/compute_flow.cpp:473:1: note: file /home/mzy/zero-shot4video/gpu_flow/build/CMakeFiles/compute_flow.dir/compute_flow.gcda not found, execution counts estimated } ^ [100%] Building CXX object CMakeFiles/compute_flow.dir/compute_flow_automoc.o Linking CXX executable compute_flow CMakeFiles/compute_flow.dir/compute_flow.o: In function ~GpuMat': /usr/local/include/opencv2/core/gpumat.hpp:374: undefined reference to cv::gpu::GpuMat::release()' /usr/local/include/opencv2/core/gpumat.hpp:374: undefined reference to cv::gpu::GpuMat::release()' /usr/local/include/opencv2/core/gpumat.hpp:374: undefined reference to cv::gpu::GpuMat::release()' /usr/local/include/opencv2/core/gpumat.hpp:374: undefined reference to cv::gpu::GpuMat::release()' /usr/local/include/opencv2/core/gpumat.hpp:374: undefined reference to cv::gpu::GpuMat::release()' CMakeFiles/compute_flow.dir/compute_flow.o:/usr/local/include/opencv2/core/gpumat.hpp:374: more undefined references to cv::gpu::GpuMat::release()' follow CMakeFiles/compute_flow.dir/compute_flow.o: In function main': /home/mzy/zero-shot4video/gpu_flow/compute_flow.cpp:169: undefined reference to cv::gpu::setDevice(int)' /home/mzy/zero-shot4video/gpu_flow/compute_flow.cpp:173: undefined reference to cv::gpu::getDevice()' /home/mzy/zero-shot4video/gpu_flow/compute_flow.cpp:173: undefined reference to cv::gpu::printShortCudaDeviceInfo(int)' /home/mzy/zero-shot4video/gpu_flow/compute_flow.cpp:177: undefined reference to cv::gpu::OpticalFlowDual_TVL1_GPU::OpticalFlowDual_TVL1_GPU()' /home/mzy/zero-shot4video/gpu_flow/compute_flow.cpp:352: undefined reference to cv::gpu::GpuMat::upload(cv::Mat const&)' /home/mzy/zero-shot4video/gpu_flow/compute_flow.cpp:353: undefined reference to cv::gpu::GpuMat::upload(cv::Mat const&)' /home/mzy/zero-shot4video/gpu_flow/compute_flow.cpp:354: undefined reference to cv::gpu::OpticalFlowDual_TVL1_GPU::operator()(cv::gpu::GpuMat const&, cv::gpu::GpuMat const&, cv::gpu::GpuMat&, cv::gpu::GpuMat&)' /home/mzy/zero-shot4video/gpu_flow/compute_flow.cpp:357: undefined reference to cv::gpu::GpuMat::download(cv::Mat&) const' /home/mzy/zero-shot4video/gpu_flow/compute_flow.cpp:358: undefined reference to cv::gpu::GpuMat::download(cv::Mat&) const' /home/mzy/zero-shot4video/gpu_flow/compute_flow.cpp:348: undefined reference to cv::gpu::GpuMat::upload(cv::Mat const&)' /home/mzy/zero-shot4video/gpu_flow/compute_flow.cpp:349: undefined reference to cv::gpu::GpuMat::upload(cv::Mat const&)' CMakeFiles/compute_flow.dir/compute_flow.o: In function main': /usr/local/include/opencv2/gpu/gpu.hpp:1742: undefined reference to cv::gpu::Stream::Null()' CMakeFiles/compute_flow.dir/compute_flow.o: In function main': /home/mzy/zero-shot4video/gpu_flow/compute_flow.cpp:350: undefined reference to cv::gpu::BroxOpticalFlow::operator()(cv::gpu::GpuMat const&, cv::gpu::GpuMat const&, cv::gpu::GpuMat&, cv::gpu::GpuMat&, cv::gpu::Stream&)' CMakeFiles/compute_flow.dir/compute_flow.o: In function ~GpuMat': /usr/local/include/opencv2/core/gpumat.hpp:374: undefined reference to cv::gpu::GpuMat::release()' /usr/local/include/opencv2/core/gpumat.hpp:374: undefined reference to cv::gpu::GpuMat::release()' /usr/local/include/opencv2/core/gpumat.hpp:374: undefined reference to cv::gpu::GpuMat::release()' /usr/local/include/opencv2/core/gpumat.hpp:374: undefined reference to cv::gpu::GpuMat::release()' /usr/local/include/opencv2/core/gpumat.hpp:374: undefined reference to cv::gpu::GpuMat::release()' CMakeFiles/compute_flow.dir/compute_flow.o:/usr/local/include/opencv2/core/gpumat.hpp:374: more undefined references to cv::gpu::GpuMat::release()' follow /home/mzy/anaconda3/lib/libQt5Core.so.5.9.5: undefined reference to __cxa_throw_bad_array_new_length@CXXABI_1.3.8' /home/mzy/anaconda3/lib/libQt5Core.so.5.9.5: undefined reference to operator delete(void*, unsigned long)@CXXABI_1.3.9' /home/mzy/anaconda3/lib/libQt5Core.so.5.9.5: undefined reference to `operator delete[](void*, unsigned long)@CXXABI_1.3.9' collect2: error: ld returned 1 exit status make[2]: *** [compute_flow] Error 1 make[1]: *** [CMakeFiles/compute_flow.dir/all] Error 2 make: *** [all] Error 2

Any solution for this issue?

[Chelgan]

Do you have a solution now?I am also facing this problem.