Cannot compile nor run a JavaFX application
已回答
I have some problems with IntelliJ, version 2017.3
I have no idea why Maven is running "offline".
My JavaFX application doesn't run
Here is the log of Maven build.

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Hello Manuel,
You could disable offline mode in "Settings | Build... | Build Tools | Maven".
Also please check that all needed dependencies are mentioned under "Dependencies" in Maven Tool Window
I still have a problem when go online:
Seems it's a known issue that maven plugin doesn't support JDK 9: https://github.com/javafx-maven-plugin/javafx-maven-plugin/issues/287
I have tried installing JDK 8 but I still got the error.
1) Compilation errors (package doesn't exist with the Idea "builder"
2) Runtime exceptions with Maven.
What should I do?
Could you please share your project (or sample project reproducing the issue) for investigation?
https://gitlab.com/Graphics3D/Plants-2.0.git
The latest log shows that application was packed successfully, but there was some error at runtime. Please check related discussion: https://stackoverflow.com/questions/20507591/javafx-location-is-required-even-though-it-is-in-the-same-package