I spent two days trying to fix these problems, I am trying to build for OpenCV using GPU to run my code, because it gets really laggy using CPU. So these are the problem CMake Warning (dev) at cmake/OpenCVUtils.cmake:144 (find_package): Policy CMP0148 is not set: The FindPythonInterp and FindPythonLibs modules are removed. Run "cmake --help-policy CMP0148" for policy details. Use the cmake_policy command to set the policy and suppress this warning.` Call Stack (most recent call first): cmake/OpenCVDetectPython.cmake:64 (find_host_package) cmake/OpenCVDetectPython.cmake:271 (find_python) CMakeLists.txt:643 (include) This warning is for project developers. Use -Wno-dev to suppress it. CMake Warning (dev) at cmake/OpenCVUtils.cmake:144 (find_package): Policy CMP0146 is not set: The FindCUDA module is removed. Run "cmake --help-policy CMP0146" for policy details. Use the cmake_policy command to set the policy and suppress this warning.` Call Stack (most recent call first): cmake/OpenCVDetectCUDA.cmake:21 (find_host_package) cmake/OpenCVFindLibsPerf.cmake:43 (include) CMakeLists.txt:750 (include) This warning is for project developers. Use -Wno-dev to suppress it. I've learned that it could be about some new policy and I tried to change Cmakelist.txt, but it just doesn't work. I've tried to reinstall Cmake, but doesn't work either. And I tried to ignore that to see if it works after all : I went into VS2019, hit "All Build", but it happened to make hundreds of C1083 Error. The Error may be like `C:/Users/擐祆???Documents/OpenCV_Cmake_Document/opencv-4.7.0/modules/imgproc/src/precomp.hpp': No such file or directory opencv_world_AVX512_SKX ` I'm Taiwanese so the issue could be caused by the language. I'm using OpenCV 4.7.0 & Python 3.10.9 and my GPU is Geforce RTC3080. I tried to ignore the warning, but that does not work. Continue reading...