title: Visual Studio build stalls for all MVC 6 projects (MVC 6 projects do not build under VS2015)
body: <p>Recently all of my ASP.NET 5 MVC 6 projects have stopped building within Visual Studio 2015 (Update 1)</p>
  
  <p>I've tried many variations of patching / un-install / re-install for both VS 2015 and ASP.NET 5 as well as trying different version of ASP.net 5; the result is always the same....  The status bar says "Build Started..." and then NOTHING happens.  Canceling the build is responsive. </p>
  
  <p>If I go to the command line for a project and use "DNU build", the project builds successfully and without error - But inside Visual studio, the build is stalled immediately and no progress ever occurs.  This is quite frustrating! any clues will be appreciated.</p>
  
  <p>I did see this thread  <a href="https://stackoverflow.com/questions/32131768/asp-net-5-on-vs-2015-cant-build-or-debug-solution">ASP.NET 5 on VS 2015 - Can&#39;t build or debug solution</a>  however none of these solutions worked for me.  Note that all other project types build correctly.  The issue is only with MVC 6 projects.   </p>
  
  <p>Does anyone know how to re-establish the application build logic for MVC 6 projects within Visual Studio 2015? </p>