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Java Build a JavaFX Application Design a Better App The Controller

Umair Khalil
Umair Khalil
5,285 Points
Posted by Umair Khalil
Umair Khalil
5,285 Points

I'm following the instructions of the instructor but after creating a method for #handle say sup im getting this error

Exception in Application start method Exception in thread "main" java.lang.RuntimeException: Exception in Application start method at com.sun.javafx.application.LauncherImpl.launchApplication1(LauncherImpl.java:917) at com.sun.javafx.application.LauncherImpl.lambda$launchApplication$155(LauncherImpl.java:182) at java.lang.Thread.run(Thread.java:745) Caused by: javafx.fxml.LoadException: /C:/Users/diaded/IdeaProjects/Sup/out/production/Sup/sample/sample.fxml:26

Nathan Bovino
Nathan Bovino
10,905 Points
Nathan Bovino
Nathan Bovino
10,905 Points

Can you please include your code. It will help to answer the question

Sean Habel
Sean Habel
4,407 Points

I had the same issue when I just went through it I looked a bit closer at my code and realized that when IntelliJ created the default Project that it had the wrong ActionEvent imported for me. It automatically imported the

  • import java.awt.event.ActionEvent;

instead of the

  • import javafx.event.ActionEvent;

Check your Controller.java file to make sure that you are importing the javafx ActionEvent and not the awt ActionEvent. I hope that helped!

1 Answer

Mathias Stephansen
Mathias Stephansen
3,409 Points
Mathias Stephansen
Mathias Stephansen
3,409 Points

I had the same problem. the file " <?import javafx.event.ActionEvent?> " was never implemented so i had to do it myself #firstworldproblems..... but after that i could continue through the Error ID (red lightbulb)