[ultramalcolm]

I’ve installed bbpress, but when I go to the forum in a browser, I just get this message:

Fatal error: Class 'WP_Post' not found in /nfs/c09/h02/mnt/137912/domains/profoodblogger.com/html/wp-content/plugins/bbpress/includes/core/theme-compat.php on line 375

How can I begin tracking this down?

[Stephen Edgar]

Switch to one of WordPress default themes, Twenty Thirteen or Twenty Fourteen.

If bbPress works try your theme again, if bbPress doesn’t deactivate the plugin, delete it and reinstall.

And or try deactivating all your plugins except bbPress then reactivate one by one until the error occurs to find a conflicting plugin.