Upgrade to OJS 3.0

Software Support
1

Dear PKP

I try to upgrade OJS version from 2.4.8.1 to OJS 3.0 but I am still fail.
This is the error notification

			Errors occurred during installation:
			A database error has occurred: Table 'issue_galleys_stats_migration' already existsWhat I can do ? I delete that table or how ?Thank you
2

Hi @azwarmuin,

It sounds like you’ve already attempted to upgrade; make sure you fully drop your database, then re-create it, then restore from backup from prior to the first upgrade attempt. Failed upgrade attempts will leave various bits and pieces lying around from the attempt.

Regards,
Alec Smecher
Public Knowledge Project Team