Exception in Application start method

Question

I\'m new to javafx and i was trying to make a gui from which when a button is clicked, it would go to another window. I tried reading many answers found on Stack Overflow. I

Answer 1

The stack trace tells you the problem:

Error resolving onAction='#handleButtonAction', either the event handler is not in the Namespace or there is an error in the script.

You have

<Button fx:id="login" layoutX="153.0" layoutY="440.0" onAction="#handleButtonAction" ... >

but your controller has no method called handleButtonAction. You probably want

<Button fx:id="login" layoutX="153.0" layoutY="440.0" onAction="#btnClicked" ... >