This flutter project file that I want to import, it's probably an old project, when I try importing it I get this error message of an existing file but, there is none.
I also deleted .idea folder but still showing the same error message "Error adding module to project: Module already exists: debug".
Approch already done : - Delete .idea folder from project
Click here to see ScreenShot : https://i.stack.imgur.com/sBdzo.png
I think that it is related to the flutter SDK dependencies issues. Did you try to upgrade the whole project?
$ flutter cleanto clean all the related staff$ flutter pub getto get all the corresponding dependencies