Return value of Symfony\Component\CssSelector\Node\SelectorNode::getPseudoElement() must be of the type string, null returned

wbraganca / yii2-dynamicform

It is widget to yii2 framework to clone form elements in a nested manner, maintaining accessibility.

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Open JOHNFFFEE opened 6 years ago

JOHNFFFEE commented 6 years ago

in /var/www/html/advanced/vendor/symfony/css-selector/Node/SelectorNode.php line 42