Unable to add files after upgrade

I recently upgraded to the latest version of omeka using the directions on the Documentation page. The public site works fine, and I was able to edit items. However, I tried to add a new item and, after following the directions to enable error messages, I received the following error:

Omeka_Storage_Exception Destination directory is not writable: '/var/www/htdocs/archives/omeka/files/original'.

I made sure that I changed the folder name from omeka/archives/files to omeka/files/original and made sure that the folders were writable in the folder properties.

Any ideas? Thanks!

That error pretty much just means what it says, the "files/original" directory isn't writeable by Omeka.

You might need to double-check your permissions to make sure they're okay, because that's very likely to be the issue here.