I'm moving an EE upgrade from local to production server and and getting the dreaded "Unable to Load Site Preferences; Invalid Preference Data" error.
I've tripled checked everything. DB connection is fine, paths are set correctly, DB table has site preferences etc... What else should I check?
When updating from EE1 to EE2, this error message will also appear if you migrated all the files and DB to the new server, but you forgot to replace the main index.php file in your site's root. So, be sure that file is the EE2 version as well.