title: The import javafx.embed.swing.SwingNode cannot be resolved
body: <p>I've been trying to use import javafx.embed.swing.SwingNode because I want to use SwingNode in my project, but the error "cannot be resolved" comes up.</p>
  
  <p>I have a JavaFX SDK in libraries, so I don't know where the problem is.  </p>
  
  <p>Does anyone have any idea what it can be?</p>