title: Eclipse > why most error icons disappeared in my package explorer
body: <p><a href="https://i.stack.imgur.com/iNBy8.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/iNBy8.jpg" alt="enter image description here"></a></p>
  
  <p>I am using Eclipse to develop Java project, we can see from the picture, only the parent package src/main displays the ERROR icon, but its sub packages do not display error icons any more even though there are actually errors in all the packages  </p>