Can't launch javaFx application with intellij anymore

Question

I am developping a JavaFx application with IntelliJ Idea, and until today, all worked fine, but now for no reason (maybe i did something wrong without knowing it) whenever i

Answer 1

So as it was told on the other answers, the problem came form the last Nvidia Driver : 378.49 I re-installed the older version (376.33) and all worked fine again.

In my case i have the Nvidia 960M.

Thanks everyone for your help.