Eclipse Oxygen : Incompatible java versions

Question

I have just installed Eclipse Oxygen and created a JFrame project. While switching from source view to design view, i am getting \"incompatible java version error\".

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Answer 1

Windowbuilder currently does not work with Java 9 or 10. This is described in Eclipse bug 517291.

Running Eclipse with Java 8 seems to be the only way to run windowbuilder.