title: VS 2017 15.3 Yellow Triangles on References
body: <p>This morning I upgraded to VS 2017 15.3 and now am getting yellow triangles for most of my references.  The project runs fine (build is good in CLI and VS and restore has been run multiple times) that I can tell (and even better on dotnetcore 2.0 actually) but these remain.  Has anyone else had this happen or have a suggestion?  Thanks.</p>
  
  <p>Link to project.assets.json file --> <a href="https://www.dropbox.com/s/c85yuyjiu4pnget/project.assets?dl=0" rel="noreferrer">https://www.dropbox.com/s/c85yuyjiu4pnget/project.assets?dl=0</a></p>
  
  <p><a href="https://i.stack.imgur.com/ufs6z.png" rel="noreferrer"><img src="https://i.stack.imgur.com/ufs6z.png" alt="Yellow triangles in Solution Explorer "></a></p>
  
  <p>Also issue of greyed out usings and red references although everything builds and runs fine.  </p>
  
  <p><a href="https://i.stack.imgur.com/9jyVC.png" rel="noreferrer"><img src="https://i.stack.imgur.com/9jyVC.png" alt="enter image description here"></a></p>
  
  <p><a href="https://i.stack.imgur.com/LwYFw.png" rel="noreferrer"><img src="https://i.stack.imgur.com/LwYFw.png" alt="Warnings Window"></a></p>