问题
I've disabled m2eclipse plugin for a project by clicking on "Disable Maven Nature" as shown in the Figure below. Then the Maven entry disappeared from the menu and I'm unable to restore it.
How do I restore/reset/re-enable so that the entry appears again?
PS 1: I'd like to do that without re-importing the project.
PS 2: I've looked in ${WORKSPACE}/.metadata\.plugins\org.eclipse.m2e.core.ui and ${WORKSPACE}/.metadata\.plugins\org.eclipse.m2e.core but nothing seems related.
回答1:
Solution:
Go to the project menu (right click on Package Explorer) > Configure > Convert to Maven Project
This should restore the entry in the project menu.
来源：https://stackoverflow.com/questions/9823350/restore-maven-plugin-for-a-project-on-eclipse