Title: Upgrade Fails! Last modified: August 19, 2016 --- # Upgrade Fails! * Resolved [berfarah](https://wordpress.org/support/users/berfarah/) * (@berfarah) * [18 years, 1 month ago](https://wordpress.org/support/topic/upgrade-fails/) * I’m trying to upgrade to 2.5 and I get this: * > Fatal error: Call to undefined function: require_wp_db() in /homepages/42/d232523706/ > htdocs/wp-settings.php on line 204 * What the hell does that mean? I uploaded all the files, and I had disabled all the plugins (even cleared the cache to make sure that wassup wasn’t intefering) * I deleted all the wordpress files and went back to my backup and it worked fine… * Can anyone please help me? Viewing 2 replies - 1 through 2 (of 2 total) * [Lester Chan](https://wordpress.org/support/users/gamerz/) * (@gamerz) * [18 years, 1 month ago](https://wordpress.org/support/topic/upgrade-fails/#post-722458) * Can you deleted everything EXCEPT your /wp-content/ folder and then download WP2.5 from there and then upload it. * Make sure you configure your wp-config.php again * Thread Starter [berfarah](https://wordpress.org/support/users/berfarah/) * (@berfarah) * [18 years, 1 month ago](https://wordpress.org/support/topic/upgrade-fails/#post-722461) * *gasps in delight* It worked! Thanks a lot! Viewing 2 replies - 1 through 2 (of 2 total) The topic ‘Upgrade Fails!’ is closed to new replies. ## Tags * [Failed](https://wordpress.org/support/topic-tag/failed/) * [fatal error](https://wordpress.org/support/topic-tag/fatal-error/) * [upgrade](https://wordpress.org/support/topic-tag/upgrade/) * In: [Installing WordPress](https://wordpress.org/support/forum/installation/) * 2 replies * 2 participants * Last reply from: [berfarah](https://wordpress.org/support/users/berfarah/) * Last activity: [18 years, 1 month ago](https://wordpress.org/support/topic/upgrade-fails/#post-722461) * Status: resolved ## Topics ### Topics with no replies ### Non-support topics ### Resolved topics ### Unresolved topics ### All topics