title: Error involving incremental (C1073) compilation when compiling an external library
body: <p>I need to compile an external library using DirectX, from a VS2008 project.
  I've converted it to a VS2012 project, but the project doesn't compile.</p>
  
  <p>I get the following error in many files:</p>
  
  <pre><code>&gt; fatal error C1073: Internal error involving incremental compilation 
  (compiler file 'f:\dd\vctools\compiler\cxxfe\sl\p1\c\p0io.c', line 865)
  </code></pre>
  
  <p>What is the meaning of this error?</p>
  
  <p>And what is the <code>p0io.c</code> file? I've no file with this name (nor a <code>f://</code> disk)</p>