Directory theme seems to be missing a JS file

Hi. I've now installed the Directory plugin using the Directory Default theme (which I transferred to the Themes folder).

It almost looks okay...except there is a default sidebar that is in the wrong place (overlapping header) AND the widgets page does not fully display so I cannot even look at the sidebars.

If I activate another theme - then the widgets page displays fine, so I think the problem is with the Defaults theme. Maybe one or more javascript files have not been included?

In Safari / Activity it reports an error in not being able to find this: /wp-content/plugins/directory/ui-front/js/directory-post.js?ver=3.4.2

Please help!