I wonder how google will react to this if you have made the following code in a .htaccess file. This code will give hint to crawlers that what they first observed before was changed and move to the correct one. Additionally, humans who happen to access the incorrect folder will be redirected the the updated and correct one, and not be left with those page error display.
RewriteRule ^
incorrectfolder/?(.*)
http://www.yourdomain.com/correctfolder/$1 [R=301,L]
Where $1 indicates all that follows after the dir/ will be permanently redirected to. ex. domain.com/incorrectfolder/filename.extension redirects to domain.com/correctfolder/filename.extension
If I am not mistaken, this will avoid those error responses caused by not existing file due to changed/updated directory name. And I also think that google is good enough to understand that.
One thing I am not sure from here though is if google found out it was changed and redirected permanently, will it remove those error logs in the google webmaster console. I have not stumble to the same error yet, so I really can't tell if that's really the outcome of it. However, if this results a positive, then it would save you time from manually deleting each of those errors.