java.lang.NoClassDefFoundError: javafx/application/Application

When I give the distribution to another one to run, It will be broken, And then what I can do to fix it, In my mac, It works well. @edvin

Error: Could not find or load main class wu.seal.demo.app.MyApp
Caused by: java.lang.NoClassDefFoundError: javafx/application/Application

And Their Environment is Java8 Also in my Linux VM with java11 run with the same problem. Is there any quick method to let others could run my tornadofx app?

I had also let others to run these command lines:

wget http://fxldemo.tornado.no/fxlauncher.jar
java -jar fxlauncher.jar

But with the same Error

It seems that javaFx is hard for using for others.

[edvin]

A TornadoFX 1 based application requires Java 8 and JavaFX, just like any other JavaFX based application. If you install OpenJDK you will also need to install OpenJFX. For TornadoFX 2, the situation is the same, but Java 13 doesn’t include JavaFX, so it must be included with your application.

If you’re going to distribute your app to non-developers, you need to wrap it in an installer, or provide clear installation instructions. That’s what FXLauncher is for - it allows you to distribute a binary for each platform you want to support, and this binary will make sure to install all required dependencies, like the Java and JavaFX runtimes needed for your app.

NoClassDefFoundError: javafx/application/Application states that JavaFX is missing from the classpath, so it should be pretty straight forward for a developer to figure out. You shouldn’t bother your end users with that sort of issues, hence the installer route is the way to go 😃

[wuseal]

@edvin Tks for your detail instruction! Let me research FXLauncher later 😃