Had the same issue. in my case it was because the flutter application file was saved on my one drive . when I move the file to desktop or anywhere on the MacBook it worked for me.
Dahighest
Users receive reputation points by contributing quality content to the forums.
Posts include post and replies published on the forums.
Post authors can mark replies as Accepted to indicate successful solutions.
Apple Developer Forums admins can mark replies as Apple Recommended to indicate an approved solution
From
Birmingham