title: Visual Studio - project shows up as "Miscellaneous Files"
body: <p>This is a weird one. I have a C# Class Library project within my solution. If I open a <code>.cs</code> file within this project, the <code>Project</code> drop-down on the code editor shows that it belongs to 'Miscellaneous Files'.</p>
  
  <p><img src="https://i.stack.imgur.com/Edd1j.png" alt="Screenshot of the problem"></p>
  
  <p>Other symptoms: if I go to the properties of the project and look at <code>Assembly Information</code>, all values are blank, despite the values existing in the <code>AssemblyInfo.cs</code> file.</p>
  
  <p>Both of these are annoying, but the problem is that</p>
  
  <ul>
  <li>I don't get intellisense on any files in the project</li>
  <li>I can't seem to step through it in the debugger (it tells me that the files do not belong to the solution and so can't be debugged).</li>
  </ul>
  
  <p><img src="https://i.stack.imgur.com/mlXHk.png" alt="Assembly info is blank"></p>
  
  <p>I have tried:</p>
  
  <ul>
  <li>Combing through the <code>.csproj</code> file and comparing to others in the solution (no joy)</li>
  <li>Re-creating the <code>.csproj</code> file and overwriting the old one (worked until I merged the branch into trunk, then the problem re-appeared)</li>
  <li>Banging my head on the keyboard (headache)</li>
  </ul>
  
  <p>Google has turned up nothing. Does anyone have any ideas as to what's going on here?</p>