title: NuGet Packages are missing
body: <p>I searched this problem but none of the solutions worked. I have Visual Studio Professional 2015 installed and I am using TFS. My NuGet version is 3.1.6. This problem is happening only in my C# Web API/MVC project.</p>
  
  <p>I am getting the below error:</p>
  
  <blockquote>
    <p>This project references NuGet package(s) that are missing on this
    computer. Use NuGet Package Restore to download them.  For more
    information, see <a href="http://go.microsoft.com/fwlink/?LinkID=322105">http://go.microsoft.com/fwlink/?LinkID=322105</a>. The
    missing file is
    ..\packages\Microsoft.Net.Compilers.1.0.0\build\Microsoft.Net.Compilers.props</p>
  </blockquote>
  
  <ol>
  <li>I do not have .nuget folder in my solutions.</li>
  <li>I have a packages folder in the solution and when I delete it, it seems like NuGet does rebuild the dependencies but the project still has the above error.</li>
  <li>I tried removing the project from TFS and it didn't fix it.</li>
  <li>Along with the above error, all the references in the project have yellow warning signs and say they are missing.</li>
  <li>When I checked the NuGet Package Manager for the project, everything that is "missing" has a green tick next to it, including Microsoft.Net.Compilers.</li>
  <li>I tried adding a new Web API/MVC project and it faced a similar problem where most references such as Owin were "missing" with the yellow warning sign.</li>
  </ol>