1 problem description

When a new branch code (GIT fetch + git checkout – b) is pulled to operate a new local branch, there is a problem (GIT rebase, GIT stash, GIT checkout old branches will not prompt this error, and the same error will be reported on rollback on idea)

2 problem solving

Stop the application (the project is running, and the jar package is referenced, which makes git unable to access). Rollback the jar package in the idea, select the jar package, and click the button

3 problem analysis

The project is running, the jar package is referenced, and git cannot be updated