It's really getting annoying and tiresome when I'm working really hard on something I need to complete and then I need to make a few changes to the GUI so I open Scene Builder and it doesn't open up.
I've tried - Closing Eclipse and opening it. - Killing the scene builder process and opening it.
What works - Logging off and logging on and then opening eclipse & the scene builder.
This is starting to make me lose taste in JavaFX. Though I have to use this over Swing.
Also, when I open Scene Builder (from my desktop) it opens up just fine, though when I navigate to my Main.FXML (inside my project). Scene Builder can't be opened. It just does nothing when I open it, and it minimizes.
Even though this question has been asked some time ago, I want to contribute my solution to this problem because it differs from the other solutions and in addition is very simple.
This particular problem happened to me just a few mins ago and all I took to solve was maximizing the actual Scenebuilder window!
Description above works for Windows OS, on other OS the corresponding application managing program should do the same.
That worked for me just perfect. No copying and/or overwriting needed.
Its not the perfect answer but it works well. Try doing the following
1.Open scene builder directly from your local drive.
2.Click on File-> Open Recent -> Clear Menu
Then try to open up your fxml. Works fine for me.