title: Visual Studio 2017 references to code in other projects not resolved when i open the solution
body: <p>I have a solution in Visual Studio 2017 where projects reference other projects in the solution; when I open the solution and I open a project the references to code defined in other projects seems not resolved (is like the other projects had not yet been loaded) I must click every single projects, expand it and then the reference are all resolved. Is there a work around to avoid this?</p>
  
  <p><strong>UPDATE</strong>: I  have Lightweight Solution enabled for the single solution <br/>
  and Resharper installed. </p>
  
  <p>To be clear <strong>the solution builds</strong> but visual studio show me <strong>in red references to code in other projects</strong> and i get <strong>errors in the error windows</strong> even if the building succeed</p>
  
  <p><strong>UPDATE 2</strong> As suggested by Pankaj Kapare if I disable the Lightweight modality for the solution the problem disappear but still persist if I enable Lightweight again</p>
  
  <p><a href="https://i.stack.imgur.com/U1n6O.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/U1n6O.png" alt="enter image description here"></a></p>
  
  <p><a href="https://i.stack.imgur.com/RNgAU.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/RNgAU.png" alt="enter image description here"></a></p>