php - How to fix JHtmlBehavior::formvalidator not found -

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i tried upgrade joomla 3.3.6 joomla 3.4.1. see error when try go admin configuration page "jhtmlbehavior::formvalidator not found". how fix it?

try using following replace code shown in question

jhtml::_('behavior.formvalidator');

which specified in joomla documentation.


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