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We are launching a Magento 2.1.3 site, and finding that the site will sometimes load all of its Javascript components and dependencies properly, but sometimes fails to load, in which case a slider is not displayed and the console log shows error messages such as "Uncaught TypeError: $(...).swMegamenu is not a function".

How would we go about troubleshooting and resolving the source of these issues?

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  • hope fully their might be a JQuery conflict.Try to short out the conflict. – Mujahidh Jan 13 '17 at 3:57
  • Please post your js code. – Rakesh Jesadiya Jan 13 '17 at 5:12
  • The relevant code causing the error I included is: <script type="text/javascript"> require([ 'jquery', 'Smartwave_Megamenu/js/sw_megamenu' ], function ($) { $(".sw-megamenu").swMegamenu(); }); </script> – Gordon Krauthamer Jan 13 '17 at 14:05
  • We're observing today that the site will load the components on a normal reload, but not on a hard reload. – Gordon Krauthamer Jan 13 '17 at 14:11
  • Also, the problems seem to only occur in Magento production mode, not developer mode. – Gordon Krauthamer Jan 13 '17 at 15:17
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Hope fully their might be a JQuery conflict.Try to short out the

You can assign a variable.You should add the below line of code where swMegamenu located in.

var jq = jQuery.noConflict();

and use the variable jq instead of $ like jq(...).swMegamenu

Hope fully this might help you.

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