getting error CRITICAL: TypeError: Argument 2 passed to Magento\Framework\View\Element\UiComponentFactory::argumentsResolver() must be of the type array, null given, called in C:\xampp\htdocs\magento2\vendor\magento\framework\View\Element\UiComponentFactory.php on linecreating a grid in admin panel

CodePudding user response：

It is getting a null instead of an array.

Try this:

Check in your code that if it is null it returns an empty array.