nativeRunAgent Task failing

[UtilFunction]

Problem:
Running ./gradlew nativeRunAgent results in an error:
Error creating Substrate Dispatcher: java.lang.NullPointerException: Main class name is required.

Main class already defined in the application block

application {
    mainClass = 'fx.App'
}

Adding mainClassName = 'fx.App' results in an error as well:
RunAgent failure: org.gradle.api.internal.provider.AbstractProperty$PropertyQueryException: Failed to calculate the value of task ':app:run' property 'javaLauncher'.

Sample Project

Environment:

• Java(TM) SE Runtime Environment Oracle GraalVM 21+35.1 (build 21+35-jvmci-23.1-b15)
• Gradle 8.4-rc-1

[SabujXi]

This gralde plugin took two days and nights of sleep away. Application is fine, running fine but no native build, compile link, agent things were working.

The biggest pain: NO useful error message.

After hours and hours of debugging and sleepless night, dizzy days here is the result:
The gradle plugin from gluon is "broken".

Solution: use the maven plugin.

[UtilFunction]

Solution: use the maven plugin.

Agree. It's not only the gluonfx plugin but also the javafx gradle plugin that seems to be doing werid things as described here.