在Windows上安装dlib时Cmake错误

Question

我正在尝试在窗口 19.2 中安装 dlib-7.但是在 dlib 的构建过程中，我收到这些错误。

Configuring cmake ...
-- Building for: NMake Makefiles
-- The C compiler identification is unknown
-- The CXX compiler identification is unknown
CMake Error in CMakeLists.txt:
  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.
CMake Error in CMakeLists.txt:
  The CMAKE_CXX_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 "CXX" or the CMake cache entry CMAKE_CXX_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 "C:/dlib-19.2/tools/python/build/CMakeFiles/CMakeOutput.log".
See also "C:/dlib-19.2/tools/python/build/CMakeFiles/CMakeError.log".
error: cmake configuration failed!
                                          

谁能解释一下错误的原因以及如何避免它。Cmake GUI似乎工作得很好。

Answer 1

遇到同样的问题，安装 Visual C++ 2015 构建工具为我解决了它：http://landinghub.visualstudio.com/visual-cpp-build-tools