Magento 2 : Fatal error: Uncaught Error: Call to a member function dispatch()

Question

I get this error in a block that I am developing to get current category. any ideas?

class CurrentCategory extends \Magento\Framework\View\Element\Template
{
protected $_registry;
public function __construct(
 \Magento\Framework\Registry $registry
)
{
 $this->_registry = $registry;
}
public function getCurrentCategory()
{
 return $this->_registry->registry('current_category');
}

PHP Fatal error: Uncaught Error: Call to a member function dispatch() on null in /vendor/magento/framework/View/Element/AbstractBlock.php:652

• sv3n: If you have found an answer please use arrows/checkmark to upvote/accept an answer. Thank you.

Answer 1

Try below code

class CurrentCategory extends \Magento\Framework\View\Element\Template
{
protected $_registry;
public function __construct(
 \Magento\Framework\View\Element\Template\Context $context,
 \Magento\Framework\Registry $registry
)
{
 parent::__construct($context);
 $this->_registry = $registry;
}
public function getCurrentCategory()
{
 return $this->_registry->registry('current_category');
}

run upgrade, compile and deploy command and clear cache

• Fer González Blanco: Thanks! but... same error :)

Answer 2

You can simply inherit (or use, if you don't want to add functionality) from \Magento\Catalog\Block\Category\View instead of \Magento\Framework\View\Element\Template to get access to the getCurrentCategory() method.

• Fer González Blanco: Thanks for your awnser but... same result :)

Answer 3

You constructor has to match the parent one ... please try this:

public function __construct
(
 \Magento\Framework\View\Element\Template\Context $context,
 \Magento\Framework\Registry $registry
 array $data = []
) {
 parent::__construct($context, $data);
 $this->_registry = $registry;
}