title: CMake cannot identify C compiler from installed Visual Studio 2015
body: <p>I have been trying to install CMake for vtk, but I'm getting this error message:</p>
  
  <p><code>The C compiler identification is unknown,The CXX compiler identification is unknown</code>. </p>
  
  <p>I'm using CMake 3.2.1, vtk 6.2.0 and Visual Studio 2015.</p>
  
  <p><a href="https://drive.google.com/file/d/0B2XxzJ157pbWS3gxNkhMVFlGc0U/view?usp=sharing" rel="nofollow">Screenshot</a></p>