location cck field error after saving new field: fatal: cannot use string offset

I get:
Fatal error: Cannot use string offset as an array in /home/lllofil/public_html/drupal/sites/all/modules/location/contrib/location_cck/location_cck.module on line 268
on a Drupal 6.6 site with location 6.x-3.x-dev after I try and make a new "location" field in a cck content type.

this is related to this feature request: http://drupal.org/node/183004 and the last comment there is about a similar "white screen".

Thanks! (I hope this is an easy typo kind of fix!)