Sample project for graphs visualization with TornadoFX (readme on russian)
- Intellij IDEA
2020.3.2 - Java
11.0.10 (x86_64) AdoptOpenJDK - Gradle
6.8.3 - Kotlin
1.4.32 - TornadoFX
1.7.20 - JavaFX
11.0.2 - OpenJFX JavaFX Gradle Plugin
0.0.9
Build: ./gradlew build or gradlew.bat build on Windows
Run: ./gradlew run or gradlew.bat run on Windows
Or open, build and run project from Intellij IDEA
👻 java.lang.UnsupportedClassVersionError: org/openjfx/gradle/JavaFXPlugin has been compiled
by a more recent version of the Java Runtime (class file version 55.0),
this version of the Java Runtime only recognizes class file versions up to 52.0
💡 Most likely, Java SDK version 8 (the same 52.0) is installed in the configuration of your project, but JavaFXPlugin was compiled and can only work with Java SDK version 11 (the same 55.0) | source
✅ Install Java SDK 11 (I have AdoptOpenJDK, for example). Probably will work with version 15 too. Next, we check that the settings in IDEA are set correctly:
- File | Project Structure... | Project Settings | Project | Project SDK = 11
- Preferences | Build, Execution, Deployment | Build Tools | Gradle | Gradle JVM = Project SDK
- NB: do not forget to click "OK" to save the settings
👻 Error: JavaFX runtime components are missing, and are required to run this application
💡 There is some kind of magic inside JavaFX, but I don't want to go into details. There is a solution, but you can read more in the source
✅ Separate our main class MainApp: App from the actual launch of the application. I.e. we extract the main function from MainApp class and call TornadoFX launch from it, e.g.:
class MainApp: App(MainView::class, Styles::class)
fun main(args: Array<String>) { launch<MainApp>(args) }