java.lang.reflect.Invocationtargetexception in Javafx

Question

I’m having a problem when loading a file with the Fxmlloader method, as in the image below.

I don’t have this problem when I do a screen without using an FXML file, someone knows why of the error?

Answer 1

Probably missing add Javafx modules.

https://openjfx.io/openjfx-docs/#install-javafx