title: Unable to check in code in Visual studio 2010(TFS 2010)
body: <p>I am working on an Asp.net web application. Since yesterday I am unable to check in my code. But I am able to get latest code, compare files , View history and create work items.</p>
  
  <p>While check in- Neither the error message is displayed nor The file that needs to be checked in is locked.</p>
  
  <p>Suspect:-<br/>
  The application is written for VS 2010. But,Once I opened it on vs 2012. Later I made necessary changes to the solution file so that It re-opens on VS 2010 again. Can this be the reason why check in is not working? Please let me now if you have any suggestions. Thanks.</p>