The benefit of this fix is that it will get rid of this error in both the IDE and with a packaged Jar. In this case, we’ll set MyLauncher as the main class for the application and the only responsibility of this class will be to launch our actual application! package com.edencoding

To jury-rig the Java launch process and fool the LauncherHelper into not realising your app is an instance of a JavaFX Application, you can create a dummy class to act as an entry point to the program. This is a wildly irresponsible cowboy fix, but if you’re not looking to a long-term stable project (for example university projects or prototyping), it can be a good way to get around the issue for now. Fixing Runtime Components in the short term But, I completely understand if you just need those fixes, you can skip ahead to there too. I’ll talk a little about why this is happening, because it has to do with JavaFX’s custom windowing and rendering systems. If you’ve got a Jar that won’t run, feel free to skip on down. I’ll start with launching from the IDE, because that seems natural. The solutions in each case can be similar, although if you can’t make your app modular you will have to apply command-line arguments both in the IDE and with your Jar. It won’t run, but you’re smart enough to run it from the command line.

You’ve got a JavaFX application packaged as a jar.

You’re in an IDE and when you hit ‘Run’ the IDE delivers the error.Generally, there are two situations you could be in to find this error. The good news is there are several easy ways to fix your app. So if you’ve had this error don’t be disheartened. When I first came back to JavaFX after using it in Java 8, every single one of my old prototypes crashed. However, it can be corrected by adding JavaFX modules, using command line arguments. It is generated for all non-modular JavaFX projects since Java SE 9. But this is one of the few awkward stumbling blocks that trips a lot of people up.Ī “Runtime Components are Missing” error is generated by the Java Launcher.

Honestly, JavaFX should be a very intuitive and easy to use piece of software. One side effect of Oracle removing JavaFX from the JDK was to make it harder to get started. Even if you consider yourself to be pretty Java-savvy. It can be a huge frustration if you’re trying to get into JavaFX. If you’re not familiar with Java modules, you’re almost guaranteed to get hit with an error: “Runtime Components Are Missing”.

How to give weka jar correct path