[ckan-dev] No harvester for type csw?

[Jessica Good]

I've set up a production site according to the "Installing CKAN from
package" docs and added some extensions. It all seems to be working
fine except that I'm getting the following error in
var/log/ckan/std/gather_consumer.log

2014-08-22 16:54:05,161 ERROR [ckanext.harvest.queue] No harvester
could be found for source type csw

I've added csw_harvester to my plugins:

ckan.plugins = stats text_preview recline_preview pdf_preview
datastore datapusher harvest ckan_harvester csw_harvester nrrc_client
spatial_metadata spatial_query disqus

I've selected CSW Server in the Harvest admin. I've pushed the
Reharvest button. The CSW I'm trying to harvest from works fine on my
development server.

The spatial extension seems to be at least partly working because I
can see the filter by location map on my search page.

What am I forgetting? Any help would be great! Just this one small
issue and I'll have the production server running properly.