Here one issue in my magento 2.1. I create one di.xml file for my own module but i got error in cms page and static block. Check below image for cms page and static block error.
And Below my di.xml code for admin panel. (Job/Test/etc/adminhtml/di.xml)
<?xml version="1.0"?> <!-- /** * Copyright © 2015 Magento. All rights reserved. * See COPYING.txt for license details. */ --> <config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:ObjectManager/etc/config.xsd"> <virtualType name="Magento\Catalog\Ui\DataProvider\Product\Form\Modifier\Pool" type="Magento\Ui\DataProvider\Modifier\Pool"> <arguments> <argument name="modifiers" xsi:type="array"> <item name="testtab" xsi:type="array"> <item name="class" xsi:type="string">Job\Test\Ui\Component\DataProvider\Product\Modifier\Testtab</item> <item name="sortOrder" xsi:type="number">200</item> </item> </argument> </arguments> </virtualType> <type name="Job\Test\Ui\Component\DataProvider\Product\Modifier\Testtab"> <arguments> <argument name="scopeName" xsi:type="string">product_form.product_form</argument> </arguments> </type> <type name="Magento\Framework\View\Element\UiComponent\DataProvider\CollectionFactory"> <arguments> <argument name="collections" xsi:type="array"> <item name="testtab_test_listing_data_source" xsi:type="string">Job\Test\Model\ResourceModel\Test\Grid\Collection</item> <item name="demo_index_grid_data_source" xsi:type="string">Job\Test\Model\ResourceModel\Test\Grid\Collection</item> </argument> </arguments> </type> </config> 
