I got this plugin working, but only by removing the “Ninja announcements” plugin.
I’m not an expert, but the problem seems to be with the way the Flashcards plugin is loading up jQuery, specifically these lines:
/*
* enqueue all the javascripts
*/
wp_enqueue_script('jquery1.7', 'https://ajax.googleapis.com/ajax/libs/jquery/1.7/jquery.min.js');
wp_enqueue_script('jquery-css-transform', WP_PLUGIN_URL.'/flashcard/rotate3Di/jquery-css-transform/jquery-css-transform.js', array('jquery1.7'));
wp_enqueue_script('rotate3Di', WP_PLUGIN_URL.'/flashcard/rotate3Di/rotate3Di.js', array('jquery-css-transform'));
wp_enqueue_script('flashcard', WP_PLUGIN_URL.'/flashcard/flashcard.js', array('rotate3Di'));
I tried to get the plugin to load jQuery straight from WordPress. When that didn’t work I then changed “jQuery1.7” to “jQuery1.10.2” in the code above (jQuery 1.10.2 is the version WordPress 3.6 comes pre-installed with). But this didn’t work either.
Basically, jQuery is being loaded up more than once and it shouldn’t be.
Anyone with a bit more expertise able to help? ??