Gmaps is not defined

This error can happen in any javascript app, but it is particularly noticeable when trying to get gmaps4rails working with Zurb Foundation.

Symptom

Uncaught ReferenceError: Gmaps is not defined

And the offending line of code:

handler = Gmaps.build('Google');

Benjamin points out:

Explanation is you put = javascript_include_tag "application" at the bottom of your html to meet Foundation's expectations. So every previous javascript will fail. Solution: you have to put your scripts after the files defining them.

So AFTER = javascript_include_tag "application", add:

= yield :scripts

And then whenever you need in a view:

- content_for :scripts do
  :javascript
    // Gmaps can be called safely here...

Check out this working example of Gmaps4Rails with Zurb for details.