title: Visual Studio compiles fine, but it still shows red lines
body: <p>I am using Visual Studio 2012 and it was working all fine until I started observing some funny behavior. When I open my code it shows red <em>Underlines</em> which we usually see when there is an error in our code. Surprisingly, the code compiles all fine. I have made following observations that are not normal at all.</p>
  <ol>
  <li>Red <em>underlines</em> in the code</li>
  <li>While cleaning or building the solution no error.</li>
  <li>Red <em>underlines</em> go away for some time after I build/clean the solution, but they come back eventually.</li>
  <li>Because of this, my IntelliSense stopped working.</li>
  <li>I can not right click on any component and go to its definition.</li>
  </ol>
  <p>Any ideas?</p>