title: UnitTest project can't reference other project in solution
body: <p>I added a unit test project (UnitTests) in Visual Studio and added a reference to the other project (CollectWords) in my solution, but I can only access one of the namespaces which is called "CollectWords". I have another namespace named "CollectWords.Service" with a class "ReviewService" and a static function "x()".</p>
  
  <p>In one of my test files in the UnitTests project I added a reference to CollectWords.Service. So why doesn't this compile?</p>
  
  <pre><code>            CollectWords.Service.ReviewService.x();
  </code></pre>
  
  <p>It says it can't find "Services" in the namespace "CollectWords".</p>
  
  <p>This is a screenshot of the solution explorer where you can see both the reference and the two projects.</p>
  
  <p><a href="https://i.stack.imgur.com/YbALZ.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/YbALZ.png" alt="enter image description here"></a></p>
  
  <p>Edit:
  Fixed the code snippet. Namespace still doesn't show up on intellisense. Does anybody know why?</p>