title: How to get the error message behind a yellow exclamation mark in Solution Explorer References?
body: <p>There are <a href="https://stackoverflow.com/search?q=visual%20studio%20yellow%20exclamation%20mark">tons of questions</a> here on Stack Overflow about how to get rid of the yellow exclamation mark ⚠️ in Visual Studio's Solution Explorer:</p>
  
  <p><a href="https://i.stack.imgur.com/4NpTZ.png" rel="noreferrer"><img src="https://i.stack.imgur.com/4NpTZ.png" alt="enter image description here"></a></p>
  
  <p>What I never found until now is a way to actually get the error message behind the yellow exclamation mark.</p>
  
  <p>I've tried:</p>
  
  <ul>
  <li>Hover with the mouse over the yellow exclamation mark icon (nothing happens).</li>
  <li>Clicking the erroneous reference and inspect the Properties window (no usable info).</li>
  <li>Set build verbosity to maximum and inspect the output (no useful information <em>to me</em>).</li>
  </ul>
  
  <p>So I'm rather clueless.</p>
  
  <p><strong>My question:</strong></p>
  
  <p>How to see the reason/error message for a yellow exclamation mark in Visual Studio Solution Explorer in the References section?</p>