java newbie - cant see anyone else with this error
已回答
I really hate to ask questions as often the answer is right there when you search but i cant find any answers. I am getting this error when running my extremely basic program.
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You are using IntelliJ IDEA version that was not designed to support Java 9, hence the problem.
If you are working with the current Java version, your tools should be of the current version too: http://www.jetbrains.com/idea/download/index.html.
https://youtrack.jetbrains.com/v2/issue/IDEA-161326