IntelliJ IDEA showing all maven plugins twice in maven toolbar tree

Question

I have a maven project. Whenever I try to open it in IDEA, all plugins are shown twice in the tree. I have tried restart, invalidate caches / restart, checkout project again

Answer 1

There are three immediate things that you could try, that could help:

1. Reimport the maven project. IntelliJ tries to parse your pom and build an object model based on the information found in the pom. There is a button that looks like two arrows that form a circle in the maven tab.

2. Close the project and open up the pom.xml again (its important, not the .idea or something, but a pom.xml). It will offer you to delete the current definitions and create new. Do it and it will rebuild everything.

3. File --> Invalidate Caches --> Restart. It will invalidate intelliJ caches (obviously) and restart the IDE.

Answer 2

1. Close your project from File menu. File--> close project
2. Go to your project directory and delete .idea and any file with extension .iml
3. Right-click on your pom and open it with IntelliJ or reimport your project from IntelliJ.