Git rebase "unable to creat

In a regular operation, git rebase master gave an error:

error: unable to create file xxx: Permission denied

Google a bit, found some possible reasons:

• More than one git bash instances(all points to the current project) are available, maybe even you opened a git bash in the IDE.
• Some of the files in the project are being edited, say 'Notepad++', while git rebase is trying to edit the file at the same time.
• Simply the IDE is preventing the changes.
  In my case, close the IDE Visual Studio Code, git rebase will work fine.