WordPress jQuery error: "Uncaught TypeError: Cannot set property 'value' of null"

Question

I've searched through a slew of tangentially related questions to this, but not precisely, so here goes:

I've been working on a site that's (unfortunately) using three different jQuery plugins in WordPress (image carousel on index, image gallery plugin "Galleria" on Portfolio pages, Custom Contact Form 7 on Contact Us page).

With some help I've been able to eliminate most of the errors it's been throwing me as a result, but I'm left now with a final one:

Uncaught TypeError: Cannot set property 'value' of null

I've split things up so that the following is called in header.php:

    <link href="http://www.cypresshilldevelopment.com/wp-content/themes/CHD2/galleria.css" rel="stylesheet" type="text/css" media="screen, print"/> 

And then the rest is called in footer.php:

<script type="text/javascript" src="http://www.cypresshilldevelopment.com/wp-content/themes/CHD2/galleria_wp/js/jquery.galleria.js"></script> 
<script type="text/javascript"> 
    $ = jQuery;
    $(function(){ $('ul.gallery').galleria({tempClass: 'active', thumbnail_caption: ''}); })
</script>

    <!-- script for jQuery image carousel -->
    <script type="text/javascript" src="/wp-content/themes/CHD2/js/jquery.cycle.all.min.js"></script> 
    <script type="text/javascript" src="/wp-content/themes/CHD2/js/jquery.easing.compatibility.js"></script> 
    <script type="text/javascript" src="/wp-content/themes/CHD2/js/jquery.easing.1.3.js"></script>

    <script type="text/javascript" src="/wp-content/themes/CHD2/js/app.js"></script>
    <!--[if lte IE 6]>
        <script type="text/javascript" src="supersleight-min.js"></script>
    <![endif]-->

What am I doing wrong here? Did I split up the code incorrectly? The error points to a line in the code WordPress is generating for the page defining a value for wphc_value, but for the life of me I haven't been able to find any reference to "wphc" in any php or js file being used.

Answer 1

Don't know if this is the cause of the error message, but you need to load a theme (loadTheme) for Galleria before initializing it.

http://galleria.aino.se/docs/1.2/getting_started/beginners_guide/

Also, don't know why you have $ = jQuery;, you probably don't need it.