Settings Not Available

I have reproduced this error:

Env:
WP 4.0 (clean install on linux)
Nirvana 0.9.5.1 (taken from SVN a few hours after checkin!)

Reproduce:
In any browser (IE11 or Chrome 39.0.2159.4 canary (64-bit) or normal Chrome release)
Open WP admin
Install Nirvana and activate style
Go to Appearance/Nirvana Settings
The settings page is shown but the accordion will not work (nothing expands)

Diagnosis:
[A similar issue has been raised on Parabola http://www.cryoutcreations.eu/forums/t/a-problem-with-your-wordpress-jquery-library that has very similar code to Nirvana]

In this case there is an error on the admin.js script (I think caused by something not loading correctly) where wp is defined but wp.media is not – so you are reading through a null reference.

_orig_send_attachment = wp.media.editor.send.attachment

Hack:
I have proven this to be the issue because I took this whole function out of the jQuery.ready function and now the settings accordion works and I can actually set things!

This is NOT the correct fix but I offer it as the only way I can get it working. Over to you guys to correct properly as only you can!

Many thanks for a great theme!

jQuery(document).ready(function() {

var uploadparent = 0;
function media_upload( button_class) {
// var _custom_media = true,
// _orig_send_attachment = wp.media.editor.send.attachment;
// jQuery(‘body’).on(‘click’,button_class, function(e) {
// uploadparent = jQuery(this).closest(‘div’);
// var button_id =’#’+jQuery(this).attr(‘id’);
// /* console.log(button_id); */
// var self = jQuery(button_id);
// var send_attachment_bkp = wp.media.editor.send.attachment;
// var button = jQuery(button_id);
// var id = button.attr(‘id’).replace(‘_button’, ”);
// _custom_media = true;
// wp.media.editor.send.attachment = function(props, attachment){
// if ( _custom_media ) {
// jQuery(‘.custom_media_id’).val(attachment.id);
// uploadparent.find(‘.slideimages’).val(attachment.url);
// uploadparent.find(‘.imagebox’).attr(‘src’,attachment.url);
// jQuery(‘.custom_media_image’).attr(‘src’,attachment.url).css(‘display’,’block’);
// } else {
// return _orig_send_attachment.apply( button_id, [props, attachment] );
// }
// }
// wp.media.editor.open(button);
// return false;
// });
}