title: c# does not contain a definition for "InitializeComponent" and name "controlName" does not exist in current context
body: <p>I've been developing a windows phone app in a team since June. Everything worked fine with all the syncs until today.
  I synced the project and vs started giving me the errors</p>
  
  <ul>
  <li>"WindowsPhoneApp.MainPage" does not contain a definition for InitializeComponent (and in all other pages, even App)</li>
  <li>The name "controlName" does not exist in the current context (this happens in all the pages)  </li>
  </ul>
  
  <p>I didn't change anything, it worked fine yesterday. Classes names on XAML match the names in code-behind.<br>
  I've tried exited all vs instances but the problems are still there. </p>