Windows下CMake编译报错：The CMAKE_C_COMPILER: cl is not a full path and was not found in the PATH.

原创已于 2025-05-28 22:00:37 修改 · 502 阅读

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在Windows下使用CMake编译项目，执行以下命令：

cmake.exe ..

出现以下报错：

-- Building for: NMake Makefiles
-- The C compiler identification is unknown
CMake Error at CMakeLists.txt:4 (project):
  The CMAKE_C_COMPILER:

    cl

  is not a full path and was not found in the PATH.

  To use the NMake generator with Visual C++, cmake must be run from a shell
  that can use the compiler cl from the command line.  This environment is
  unable to invoke the cl compiler.  To fix this problem, run cmake from the
  Visual Studio Command Prompt (vcvarsall.bat).

  Tell CMake where to find the compiler by setting either the environment
  variable "CC" or the CMake cache entry CMAKE_C_COMPILER to the full path to
  the compiler, or to the compiler name if it is in the PATH.


-- Configuring incomplete, errors occurred!
See also "xxx/build/CMakeFiles/CMakeOutput.log".
See also "xxx/build/CMakeFiles/CMakeError.log".

解决办法：

清除掉build目录后，执行以下命令重新构建：