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I have upgraded a site from 2.5.28 to 3.4.1.I followed the migration steps as specified in document. It says like it successfully upgraded to latest joomla version 3.4.1.

But if I go to home page it throws like this

500 - JHtmlBehavior::mootools not found.

You may not be able to visit this page because of:

an out-of-date bookmark/favourite a search engine that has an out-of-date listing for this site a mistyped address you have no access to this page The requested resource was not found. An error has occurred while processing your request.

Please try one of the following pages:

Home Page

If difficulties persist, please contact the System Administrator of this site and report the error below.

What should I do to resolve this issue ? Thanks in advance.

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JHTML::_('behavior.mootools'); is the code you will need to look for. This was used up until Joomla 3.x, where is was changed.

I'd suggest you do a mass find with your text editor for the above code and once found, replace it with:

JHtml::_('behavior.framework');

It's most likely coming from your template, or an extension

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  • Thanks Lodder . I tried that too.Its showing me a empty white page after changing that line of code in the whole site.
    – Ram
    Apr 29, 2015 at 14:14
  • Ok...go to your Global Configuration and set error reporting to "development". Then report any errors you see
    – Lodder
    Apr 29, 2015 at 14:17
  • @Ram Try to avoid having conversations using comments. If you have another question, search the existing ones and if you think you have something new, just post a new question. Thanks!
    – Valentin Despa
    Oct 26, 2015 at 20:06

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