title: Some NuGet packages are missing from the solution in Visual Studio Application
body: <p>After pulling some code updates I found I got this message when building.</p>
  
  <pre><code>Some NuGet packages are missing from the solution. 
  The packages need to be restored in order to build the dependency graph. 
  Restore the packages before performing any operations
  </code></pre>
  
  <p>In solution explorer the references links displayed with a missing reference icon</p>
  
  <p>I deleted the references Then at the package manager console a button appeared asking if I wanted to install the missing packages. However, this did not work.</p>