Uncaught ReferenceError: jQuery is not defined

Hi thhake,

I have deactivated your modified “Picasa and Google Plus Express” plugin v2.2.10, which was working fine on my site, and activated your newer and more official “Photo Express for Google” plugin v0.3.2. And now PhotoSwipe won’t load. I am correctly authenticating to Google and retrieving my gallery of images, which are being properly rendered on the page (using a [peg-gallery] shortcode), but when I click on an individual image (which should launch it in PhotoSwipe) it instead just opens the image by itself in the browser window.

I noticed the following error in my browser console on page load:
Uncaught ReferenceError: jQuery is not defined (anonymous function) @ (index):575

And the line in question is the first line in the following script:

<script>
                jQuery(document).ready(function () {
                    options = {
	                    shareEl: true,
	                    fullscreenEl:true,
	                    closeEl:true,
	                    counterEl:true                    };
                    // ready event, get a list of unique rel values for the photoswiped images
                    var rels = [];
                    var rel = '';
                    jQuery('a.photoswipe').each(function () {
                        // for each photoswipe rel, if the rel value doesn't exist yet,
                        // add it to our array
                        rel = jQuery(this).attr('rel');
                        if (rel != undefined) {
                            if (!peg_in_array(rels, rel)) {
                                // add this rel to our array
                                rels.push(jQuery(this).attr('rel'));
                            }
                        }
                    });

                    // check to see if our rels array has been built and has any values
                    if (rels.length > 0) {
                        // we have at least one individual set of unique rels, setup photoswipe
                        // for each
                        jQuery.each(rels, function (key, value) {
                            // get this rel and create the collection
	                        initPhotoSwipeFromDOM(jQuery('a.photoswipe[rel=' + value + ']'),options)
                        });
                        //Check if there are any images without any relation (i.e. single images)
	                    jQuery('a.photoswipe:not([rel])').each(function(key, value){
		                    initPhotoSwipeFromDOM(jQuery(this),options);
	                    });
                    } else {
                        // we didn't get any rels, so attempt without rel checking
	                    initPhotoSwipeFromDOM(jQuery('a.photoswipe'),options);
                    }

                });

                function peg_in_array(array, value) {
                    for (var i = 0; i < array.length; i++) {
                        if (array[i] === value) {
                            return true;
                        }
                    }
                    return false;
                }
            </script>

Are you not including jQuery on page load? Or is something else going on? Do I need to explicitly load jQuery via another plugin?

Thank you!

WordPress 4.3.1 running Pictorico theme.
Running PHP version: 5.5.28

https://wordpress.org/plugins/photo-express-for-google/