I kept getting an error that either said “The uploaded file could not be moved to…” or “Couldn’t write file:”

I tried several different ‘solutions’ but most of them had to do with using chmod commands and allow some serious security risks (changing your gut files to be able to be written by anyone).

But the simplest answer was the one that worked! I just deleted the upload folder (don’t forget to back it up first!!). The default folder is directory/wordpress/wp-content/uploads. Once I deleted the uploads file, I created a new one and set the permissions to 757)

Hope this helps!