Re: Possibly a bug with BP
There is nothing mysterious about this problem. It occurs when bp is not activated and you launch the home theme. The home theme’s functions.php runs it gets to the first bit of code that requires a bp global BP_PLUGIN_DIR and crashes.
Does bp live in /wp-content/plugins/buddypress? (not /mu-plugins)?
Have you activated bp sitewide?
Does it activate properly?
This error began cropping up initially way back when bp moved from /mu-plugins to /plugins. There were also errors like this when bp was not in the dir /buddypress and couldn’t activate properly.
This is not a bug. It’s a config/install issue.