{"id":1572236,"date":"2018-07-10T18:43:59","date_gmt":"2018-07-11T01:43:59","guid":{"rendered":"https:\/\/theeventscalendar.com\/support\/forums\/topic\/incompatibility-resulting-in-ajax-backend-error\/"},"modified":"2018-07-10T18:43:59","modified_gmt":"2018-07-11T01:43:59","slug":"incompatibility-resulting-in-ajax-backend-error","status":"closed","type":"topic","link":"https:\/\/theeventscalendar.com\/support\/forums\/topic\/incompatibility-resulting-in-ajax-backend-error\/","title":{"rendered":"Incompatibility resulting in AJAX backend error"},"content":{"rendered":"<p>Hello, <\/p>\n<p>I&#8217;ve discovered an incompatibility between the latest version of Events Calendar Pro and the WooCommerce Memberships plugin.<br \/>\nI&#8217;ve updated all plugins to the latest versions. I only have those plugins activated. I&#8217;ve reverted to the TwentySeventeen theme. Yet I&#8217;m unable to use AJAX within the WP backend when creating new posts. I&#8217;ve attached screenshot of the console showing the error messages.<\/p>\n<p>Essentially the error is coming from the file at: http:\/\/yogaunion3.staging.wpengine.com\/wp-content\/plugins\/the-events-calendar\/common\/vendor\/tribe-select2\/select2.min.js?ver=4.7.17<\/p>\n<pre><code>select2.min.js?ver=4.7.17:21 Uncaught Error: Option &#039;ajax&#039; is not allowed for Select2 when attached to a &lt;select&gt; element.\nat Object.d.initializeEnhancedSelect (wc-memberships-enhanced-select.min.js?ver=1.10.5:1)<\/code><\/pre>\n<p>however, I&#8217;m not good enough at JavaScript to debug this. <\/p>\n<p>Any ideas?<\/p>\n","protected":false},"template":"","class_list":["post-1572236","topic","type-topic","status-closed","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.2 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Incompatibility resulting in AJAX backend error -<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/theeventscalendar.com\/support\/forums\/topic\/incompatibility-resulting-in-ajax-backend-error\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Incompatibility resulting in AJAX backend error -\" \/>\n<meta property=\"og:description\" content=\"Hello, I&#8217;ve discovered an incompatibility between the latest version of Events Calendar Pro and the WooCommerce Memberships plugin. 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