title: Error sign in Maven project
body: <p>I have this in my eclipse workspace:</p>
  
  <p><a href="https://i.stack.imgur.com/2hCl4.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/2hCl4.png" alt="enter image description here"></a></p>
  
  <p>As you can see there the main folder of the maven project has an error sign, even though it's subfolders contains no error.</p>
  
  <ul>
  <li><p><strong>Why do this happen?</strong></p></li>
  <li><p><strong>Could this possibly result with an error?</strong></p></li>
  <li><p><strong>Or could it possible be a bug?</strong></p></li>
  </ul>
  
  <hr>
  
  <p><strong>Just for clarifications:</strong></p>
  
  <p>This project doesn't seem to have any error and is working fine. But this error sign is bothering me, that maybe this error sign could possibly result with an error in the future. I just need an explanation on how did this happen?</p>
  
  <p>Again, Many thanks to all of you.. </p>