Is it actually a 'Directory' missing file "directory-post.js"?

I just installed the directory plugin (version 2.1.2.1) with default theme of plugin.
At front end Firebugs show error as "NetworkError: 404 Not Found - http://localhost/.../wp-content/plugins/directory/ui-front/js/directory-post.js?ver=3.4.1" .
Surely file "directory-post.js" is missing?
Can you tell me what to do?

Thank,
SSocheat