Magento 2 – Fixing ‘The Resource Isn’t Set’ Error in Product Grid

dependency-injectionmagento2model

I have a model class that I'm trying to inject a ScopeConfigInterface into, and after compiling di, the product grid says "The resource isn't set." My class extends
\Magento\Framework\Model\AbstractModel and implements \Magento\Framework\DataObject\IdentityInterface, \myCompany\myModule\Api\Data\MyEntityInterface.

Errors in var/system.log:

[2017-03-15 22:36:51] main.CRITICAL: Broken reference: the 'header' tries to reorder itself towards 'global.notices', but their parents are different: 'page.wrapper' and 'notices.wrapper' respectively. [] []
[2017-03-15 22:36:51] main.CRITICAL: Broken reference: the 'page.breadcrumbs' tries to reorder itself towards 'notifications', but their parents are different: 'page.wrapper' and 'notices.wrapper' respectively. [] []
[2017-03-15 22:36:51] main.CRITICAL: Broken reference: the 'global.search' tries to reorder itself towards 'notification.messages', but their parents are different: 'header.inner.right' and 'header' respectively. [] []
[2017-03-15 22:36:51] main.CRITICAL: The resource isn't set. [] []

The only thing I've added to the class is the new __construct() code. Here is my code. 

protected function _construct() {
    $this->_init('\myCompany\myModule\Model\ResourceModel\MyEntity');
}

public function __construct(
    \Magento\Framework\App\Config\ScopeConfigInterface $scopeConfig
) {
    $this->_scopeConfig = $scopeConfig;
}

enter image description here

Best Answer

I wasn't in accord with the parent class' constructor. The surprising thing is magento setup:di:compile yielded no error. Anyway, here's the solution.

public function __construct(
        \Magento\Framework\Model\Context $context,
        \Magento\Framework\Registry $registry,
        \Magento\Framework\App\Config\ScopeConfigInterface $scopeConfig,
        \Magento\Framework\Model\ResourceModel\AbstractResource $resource = null,
        \Magento\Framework\Data\Collection\AbstractDb $resourceCollection = null,
        array $data = []
    ) {
        $this->_scopeConfig = $scopeConfig;
        parent::__construct($context, $registry, $resource, $resourceCollection, $data);
    }
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