I was just reading a blog and found tags option on the sidebar which made me search for the best tags plugin, but when i searched a lot on it i found the latest wordpress 2.3 version has the Tags feature inbuilt in it. Now the time was to login to the Fantastico De Luxe and upgrade using the wordpress auto upgrade feature in it, and i did it without taking any backups :O and the next scene was that every post in my blog got a lot of bugs and the categories stopped working.
Solutions for the Problems Encountered while upgrading wordpress :
Upgrading Database Version
How do you force a database upgrade?
Under certain situations, it may be necessary to cause a database to pass through the upgrade process again. To do that, you need to lower the db_version value in the wp_options table that corresponds to the version you want to upgrade from. For instance, if you want to force the datebase upgrade that happens from 2.0.11 to 2.3 you would change your db_version to 3441. To force an upgrade from 2.2, 2.2.1, 2.2.2, or 2.2.3 to 2.3, change that value to 5183.
”’db_version”’ for WordPress releases:
2.3 = 6124
2.2.3 = 5183
2.2.x = 5183
2.2 = 5183
2.1.3 = 4773
2.1.x = 4773
2.1 = 4772
2.0.11 = 3441
2.0.x = 3441
2.0 = 3441
1.5.x = 2541
1.x = 2540
Note: Use phpMyAdmin to change that value, or use wp-admin/options.php.
Once the db_version is changed, when logging into your blog a link to upgrade the database will be offered.
wp_terms’ doesn’t exist ERROR upgrading to 2.3
Try running upgrade.php , if it does not work open your wp-admin page and you will find a option to upgrade the database, click on the upgrade button and it will fix the problem.
Still the Problem continues with categories
First of all disable all the plugins and try to activate one by one and keep checking if you get the problems again, i did the same and found that the plugin – Other Posts From Cat > At the bottom of every post, links are shown for the last X posts from the current category was giving the problem and i deactivated it until i find the plugin developer would release a better stable version
Here is the screenshot of the problem i got when i was upgrading my wordpress 2.x version to version 3.1
I hope these steps help you out in getting the bugs removed and get your blog a clearn perfectly running wordpress install.