I'm having trouble getting a google reader stream to work. I found my sharing id using instructions found online (http://www.smartblogtips.com/add-google-reader-shared-items-to-your-wordpress-blog/), but I receive the following error when updating: "Can't call method "set_primary_keys" on an undefined value"
Any ideas what I'm doing wrong?
Trying out action streams and not sure I'm completly clear on how it works. If periodic tasks is set to run, it seems it will update a user's stream--but webpage update seems to happen as a separate operation. Am I correct in that understanding? If an error with one profile occurs, does that disqualify all other profiles being updated in that run?
Reported on Movable Type 4.3

There are only 3 locations where set_primary_keys is called (just did a grep) and the best thing I can suggest is to clean out all references to Google Reader entries in the action streams database table. Then run
delete from mt_profileevent_meta where profileevent_meta_profileevent_id not in (select profileevent_id from mt_profileevent);
There is a configuration option in ActionStreams' settings to have it rebuild your index templates when it updates. That should be turned on by default. An error in updating one profile shouldn't stop everything from being updated.