title: how to fix "The import org.junit.jupiter"?
body: <p>I'm working on MMU project and I don't know how to fix this error on <code>@Test</code> annotation.</p>
  
  <p><a href="https://i.stack.imgur.com/Mmzfv.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Mmzfv.jpg" alt="enter image description here"></a></p>
  
  <p>How I can fix it? I have added <code>JUnit</code> library but that's not working.</p>