How to Fix NoClassDefFoundError in JavaFX?

Question

I\'m trying to build a small user interface using JavaFX, But I\'m getting an error like this:

Error: Could not find or load main class myApp Caused by:

Answer 1

I think JavaFX is not a part of the JDK > 9 any more. (Your version is 12.x.x)

Probably this could help you: https://openjfx.io/openjfx-docs/#install-javafx

(Assuming you are using Maven) If this does not help, try to clean and build your Application. Sometimes Maven does not recognize newly added dependencies.