Fatal error: Uncaught TypeError: Argument 1 passed to Tunda\Categorylist\Block\Categorylist::__construct() must be an instance of Magento\Backend\Block\Template\Context, instance of Magento\Framework\ObjectManager\ObjectManager given, called in /home/dcrhome/public_html/lib/internal/Magento/Framework/ObjectManager/Factory/AbstractFactory.php on line 93 and defined in /home/dcrhome/public_html/app/code/Tunda/Categorylist/Block/Categorylist.php:7 Stack trace: #0 /home/dcrhome/public_html/lib/internal/Magento/Framework/ObjectManager/Factory/AbstractFactory.php(93): Tunda\Categorylist\Block\Categorylist->__construct(Object(Magento\Framework\ObjectManager\ObjectManager)) #1 /home/dcrhome/public_html/lib/internal/Magento/Framework/ObjectManager/Factory/Compiled.php(88): Magento\Framework\ObjectManager\Factory\AbstractFactory->createObject('Tunda\\Categoryl...', Array) #2 /home/dcrhome/public_html/lib/internal/Magento/Framework/ObjectManager/ObjectManager.php(57): Magento\Framework\ObjectManager\Factory\Compiled->create('Tunda\\ in /home/dcrhome/public_html/app/code/Tunda/Categorylist/Block/Categorylist.php on line 7