WordPress 3.0 Upgrade Error Fix

I was recently upgrading the version of WordPress on one of the sites I run and encountered the following error: “Fatal error:

Call to a member function on a non-object in  *SITEHERE*/taxonomy.php  on line 289".

It took me a little looking around to find a solution but there was someone nice enough to look into it in the wordpress forums and posted a solution.  Hopefully this article can save those of you with a similar issue some time in getting things running again.

The problem occurs due to an error in the “Podcasting Plugin by TSG”.  The fix is actually pretty simple and requires a few quick steps:

1. Manually deactivate all plugins.  The procedure to do so when you can’t access the administration menu is located here.

2. Edit the file SITEROOT/plugins/podcasting/podcasting.php – On line 15 replace the code:

register_taxonomy('podcast_format', 'custom_field');

to

function build_taxonomies() {
register_taxonomy('podcast_format', 'custom_field');
}
add_action( 'init', 'build_taxonomies', 0 );

3. Re-enable your plugins and test your site – if this was the issue, things should be working properly now.

4. Upgrade the Podcast plugin in the Plugins menu.  I upgraded to Version 2.3.10.

Thanks to wordpress forum user ddarby14 for posting the solution.  Source thread.

register_taxonomy('podcast_format', 'custom_field');

function build_taxonomies() {
	register_taxonomy('podcast_format', 'custom_field');
  }
  add_action( 'init', 'build_taxonomies', 0 );