Hi there,
I have the same permission issue, not upgrading but migrating to a new hosting.
- I've chmod required folders (var, images,...) to 777 just to check if that was the problem: nothing was solved.
- I've check config file and webDir was set to [MYDOMAIN]/[adserver_folder]/www/images, I think that's ok too
But I still get the "File permission errors detected." The problem is that debug.log writes no error or warning messages, so I cannot guess were the problem is.
BTW, old campaigns and banners -created in the old hosting - are ok, but when creating a new banner this is not displayed, as it was unable to write the images folder, even it is added to the batabase.
¿Any idea? How could I get some clues about what is going wrong? I would really appreciate your help.
R