Recognize Rails projects with Intellij idea

Task

When opening a Rails project in Intellij idea, it is not recognized as a Rails project

solution

Open Project Structure, delete module and import again _2021-01-09_14.30.15.png

If you don't recognize it, try the following

--Delete the node_modules directory --May be recognized as a web project --Delete the vendor directory --May be recognized as a Java project

Supplement

I was talking a lot here https://youtrack.jetbrains.com/issue/RUBY-21465

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