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Missing required argument $mainTable from Model\ResourceModel\Deal\Grid\Collection

But I check my all file and all code working fine but this error show on dashboard.

  • Please post your question with what you have done so far – Ramkishan Suthar Nov 20 '18 at 10:13
  • when i installed extension it's some functionality working fine and some are not and show this error. – Shweta Khattar Nov 20 '18 at 10:16
  • On which page you are getting this error – Ramkishan Suthar Nov 20 '18 at 10:17
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I think this issue is in any Deal module, I am just guessing from file's namespace, Go in your module's di.xml file and do this

<type name="Vendor\Module\Model\ResourceModel\Deal\Grid\Collection">
    <arguments>
        <argument name="mainTable" xsi:type="string">custom table name</argument>
        <argument name="resourceModel" xsi:type="string">Vendor\Module\Model\ResourceModel\Deal</argument>
    </arguments>
</type>

Might be mainTable argument is missing so I just added this. Let me know if you need further help.

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