Top menu is gone
已回答
I install macOS High Sierra and after installing top menu is gone.
How can I fix this ? 
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Looks like a known issue https://youtrack.jetbrains.com/issue/IDEA-175658. Please check the workaround: https://youtrack.jetbrains.com/issue/IDEA-175658#comment=27-2328407 .
Thank you very much it really help me