title: Visual Studio 2017: "Object reference not set to an instance of an object" while loading the project
body: <p>I have a project inside the VS solution that loads correctly in VS2015, but it seems to be corrupted in VS2017 (RC2).</p>
  
  <p>In the solution explorer it shows that its "load failed" and when I try to reload it I receive an error popup with the message "Object reference not set to an instance of an object".</p>
  
  <p><a href="https://i.stack.imgur.com/Q4SNi.png" rel="noreferrer"><img src="https://i.stack.imgur.com/Q4SNi.png" alt="enter image description here"></a></p>
  
  <p>I thought that it might be because VS2017 changed somehow <code>.csproj</code> file automatically for their needs, but after compare it with the version within VS2015 solution I found out that they are not different.</p>
  
  <p>Have anyone experienced something like that? And how it's possibly can be fixed?</p>
  
  <p>Thanks.</p>