Undefined variable: aid in contentoptimizer_analyzer_form_elements() (line 36 of contentoptimizer/contentoptimizer.module)

Clicked on add content, entered in some test data (as per the podcast). Clicked in line reports. Get the following error in the message log:

Notice: Undefined variable: aid in contentoptimizer_analyzer_form_elements() (line 36 of /sites/all/modules/contentoptimizer/contentoptimizer.module).

I did install Meta Tags Quick, then uninstalled it. I am running metatag (http://drupal.org/project/metatag) instead.

Also installed the following patches to Content Analysis API (as per http://drupal.org/node/1242966 )
http://drupal.org/files/issues/contentanalysis.patch
http://drupal.org/files/contentanalysis-1242966-6.patch