[开发工具]CUDA 11.2.targets(6069): error : The CUDA Toolkit v11.2 directory ‘‘ does not exist. Please verify

SET(CMAKE_CUDA_COMPILER "C:/sdk/CUDA/11.2/bin/nvcc.exe")

Check for working CUDA compiler: C:/sdk/CUDA/11.2/bin/nvcc.exe
Check for working CUDA compiler: C:/sdk/CUDA/11.2/bin/nvcc.exe - broken
CMake Error at D:/huangyx/sdk/opencv/cmake-3.21.2-windows-x86_64/share/cmake-3.21/Modules/CMakeTestCUDACompiler.cmake:56 (message):
? The CUDA compiler

? ? "C:/sdk/CUDA/11.2/bin/nvcc.exe"

? is not able to compile a simple test program.

? It fails with the following output:

? ? Change Dir: D:/projects/VS2017/Paddle/build/CMakeFiles/CMakeTmp
? ??
? ? Run Build Command(s):C:/Program Files (x86)/Microsoft Visual Studio/2017/Community/MSBuild/15.0/Bin/MSBuild.exe cmTC_0de38.vcxproj /p:Configuration=Debug /p:Platform=x64 /p:VisualStudioVersion=15.0 /v:m && 用于 .NET Framework 的 Microsoft (R) 生成引擎版本 15.9.21+g9802d43bc3

? ? 版权所有(C) Microsoft Corporation。保留所有权利。

? ??

? ? C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\Common7\IDE\VC\VCTargets\BuildCustomizations\CUDA 11.2.targets(606,9): error : The CUDA Toolkit v11.2 directory '' does not exist. ?Please verify the CUDA Toolkit is installed properly or define the CudaToolkitDir property to resolve this error. [D:\projects\VS2017\Paddle\build\CMakeFiles\CMakeTmp\cmTC_0de38.vcxproj]

? CMake will not be able to correctly generate this project.
Call Stack (most recent call first):
? CMakeLists.txt:74 (enable_language)

解决方法：

打开文件：

C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\Common7\IDE\VC\VCTargets\BuildCustomizations\CUDA 11.2.props

?<PropertyGroup>
? ? ? ? <CudaToolkitDir Condition="'$(CudaToolkitDir)' == ''">$(CudaToolkitCustomDir)C:/sdk/CUDA/11.2</CudaToolkitDir>

? ? ? ? ...
? ? ? ?</CudaToolkitVersion>
? ? ? ? 指定?CudaToolkitDir 的目录即可，如：$(CudaToolkitCustomDir)C:/sdk/CUDA/11.2

报错原因是环境变量 $(CudaToolkitCustomDir) 没有设置，我们直接指定自己的CUDA安装目录就好。