CMake: The C compiler identification is unknown

Question

I am trying to build a project by cmake 2.8.12 with visual studio 10 in 32bit architecture. But I am getting these error and cmake is unable to create the project. Can anyone please suggest me a solution. Thanks.

This is the error showing in cmake-gui window:

CMake Error at C:/Program Files (x86)/CMake 2.8/share/cmake-2.8/Modules/CMakeDetermineCompilerId.cmake:446 (execute_process):
  execute_process given COMMAND argument with no value.
Call Stack (most recent call first):
  C:/Program Files (x86)/CMake 2.8/share/cmake-2.8/Modules/CMakeDetermineCompilerId.cmake:48 (CMAKE_DETERMINE_COMPILER_ID_VENDOR)
  C:/Program Files (x86)/CMake 2.8/share/cmake-2.8/Modules/CMakeDetermineCCompiler.cmake:131 (CMAKE_DETERMINE_COMPILER_ID)
  CMakeLists.txt:3 (project)


The C compiler identification is unknown
CMake Error at C:/Program Files (x86)/CMake 2.8/share/cmake-2.8/Modules/CMakeDetermineCompilerId.cmake:446 (execute_process):
  execute_process given COMMAND argument with no value.
Call Stack (most recent call first):
  C:/Program Files (x86)/CMake 2.8/share/cmake-2.8/Modules/CMakeDetermineCompilerId.cmake:48 (CMAKE_DETERMINE_COMPILER_ID_VENDOR)
  C:/Program Files (x86)/CMake 2.8/share/cmake-2.8/Modules/CMakeDetermineCXXCompiler.cmake:127 (CMAKE_DETERMINE_COMPILER_ID)
  CMakeLists.txt:3 (project)


The CXX compiler identification is unknown
Could NOT find PkgConfig (missing:  PKG_CONFIG_EXECUTABLE) 

Answer 1

1. Remove Cmake cache
2. Start Visual Studio 10 (Win32) Command Prompt
3. Verify that cl command works
4. Generate with cmake -G "Visual Studio 10" ...

Answer 2

Below changes worked fine for me:

1. Set the path in PATH : C:\\Program Files (x86)\\Microsoft Visual Studio 11.0\\VC\\bin

2. Clear cmake cache

3. cmake --help

   The following generators are available on this platform:

   Visual Studio 14 2015 [arch] = Generates Visual Studio 2015 project files. Optional [arch] can be "Win64" or "ARM".

   Visual Studio 12 2013 [arch] = Generates Visual Studio 2013 project files. Optional [arch] can be "Win64" or "ARM".

   Visual Studio 11 2012 [arch] = Generates Visual Studio 2012 project files. Optional [arch] can be "Win64" or "ARM".

   Visual Studio 10 2010 [arch] = Generates Visual Studio 2010 project files. Optional [arch] can be "Win64" or "IA64".

   Visual Studio 9 2008 [arch] = Generates Visual Studio 2008 project files. Optional [arch] can be "Win64" or "IA64".

   Visual Studio 8 2005 [arch] = Generates Visual Studio 2005 project files. Optional [arch] can be "Win64".

   Visual Studio 7 .NET 2003 = Generates Visual Studio .NET 2003 project files.

   Visual Studio 7 = Deprecated. Generates Visual Studio .NET 2002 project files.

   Visual Studio 6 = Deprecated. Generates Visual Studio 6

Used exactly same as above list which was Visual Studio 11 2012

cmake -G "Visual Studio 11 2012" ..\\..\\source && cmake-gui ..\\..\\source

Built fine.