We would like to upgrade OJS version 2.4.8.0 to version 3.1.1.0. Unfortunately, the duration of the installation has caused errors: “A database error has occurred: Table ‘review_assignments_tmp’ already exists”. Is it possible to show a solution?
Hi @Mehrzad_Javadi,
If an upgrade fails, make sure to restore the database to its previous state before trying the upgrade again. When you do that, it’s important to drop and recreate the database before reloading the database dump, or else some tables that were created during the failed upgrade process may be left in the way.
Regards,
Alec Smecher
Public Knowledge Project Team