Magento 2.3.3 Admin issue

[hidonet]

All admin links of this extension returning this error.

1 exception(s):
Exception #0 (InvalidArgumentException): Class argument is invalid: Magento\Framework\View\Element\UiComponent\Context

Exception #0 (InvalidArgumentException): Class argument is invalid: Magento\Framework\View\Element\UiComponent\Context

#1 Magento\Framework\Data\Argument\InterpreterInterface\Proxy->evaluate() called at [vendor/magento/framework/Data/Argument/Interpreter/Composite.php:61]
#2 Magento\Framework\Data\Argument\Interpreter\Composite->evaluate() called at [vendor/magento/module-ui/Config/Data.php:164]
#3 Magento\Ui\Config\Data->evaluateComponentArguments() called at [vendor/magento/module-ui/Config/Data.php:111]
#4 Magento\Ui\Config\Data->initData() called at [vendor/magento/module-ui/Config/Data.php:136]
#5 Magento\Ui\Config\Data->get() called at [vendor/magento/framework/View/Layout/Reader/UiComponent.php:100]
#6 Magento\Framework\View\Layout\Reader\UiComponent->interpret() called at [vendor/magento/framework/View/Layout/ReaderPool.php:105]
#7 Magento\Framework\View\Layout\ReaderPool->interpret() called at [vendor/magento/framework/View/Layout/Reader/Container.php:89]
#8 Magento\Framework\View\Layout\Reader\Container->interpret() called at [vendor/magento/framework/View/Layout/ReaderPool.php:105]
#9 Magento\Framework\View\Layout\ReaderPool->interpret() called at [vendor/magento/framework/View/Page/Config/Reader/Body.php:68]
#10 Magento\Framework\View\Page\Config\Reader\Body->interpret() called at [vendor/magento/framework/View/Layout/ReaderPool.php:105]
#11 Magento\Framework\View\Layout\ReaderPool->interpret() called at [vendor/magento/framework/View/Layout.php:325]
#12 Magento\Framework\View\Layout->generateElements() called at [generated/code/Magento/Framework/View/Layout/Interceptor.php:89]
#13 Magento\Framework\View\Layout\Interceptor->generateElements() called at [vendor/magento/framework/View/Layout/Builder.php:129]
#14 Magento\Framework\View\Layout\Builder->generateLayoutBlocks() called at [vendor/magento/framework/View/Page/Builder.php:55]
#15 Magento\Framework\View\Page\Builder->generateLayoutBlocks() called at [vendor/magento/framework/View/Layout/Builder.php:65]
#16 Magento\Framework\View\Layout\Builder->build() called at [vendor/magento/framework/View/Page/Config.php:224]
#17 Magento\Framework\View\Page\Config->build() called at [vendor/magento/framework/View/Page/Config.php:247]
#18 Magento\Framework\View\Page\Config->getTitle() called at [vendor/mageprince/module-faq/Controller/Adminhtml/FaqGroup/Index.php:61]
#19 Prince\Faq\Controller\Adminhtml\FaqGroup\Index->execute() called at [generated/code/Prince/Faq/Controller/Adminhtml/FaqGroup/Index/Interceptor.php:24]
#20 Prince\Faq\Controller\Adminhtml\FaqGroup\Index\Interceptor->execute() called at [vendor/magento/framework/App/Action/Action.php:108]
#21 Magento\Framework\App\Action\Action->dispatch() called at [vendor/magento/module-backend/App/AbstractAction.php:231]
#22 Magento\Backend\App\AbstractAction->dispatch() called at [vendor/magento/framework/Interception/Interceptor.php:58]
#23 Prince\Faq\Controller\Adminhtml\FaqGroup\Index\Interceptor->___callParent() called at [vendor/magento/framework/Interception/Interceptor.php:138]
#24 Prince\Faq\Controller\Adminhtml\FaqGroup\Index\Interceptor->Magento\Framework\Interception\{closure}() called at [app/code/WeltPixel/Backend/Plugin/Utility.php:76]
#25 WeltPixel\Backend\Plugin\Utility->aroundDispatch() called at [vendor/magento/framework/Interception/Interceptor.php:135]
#26 Prince\Faq\Controller\Adminhtml\FaqGroup\Index\Interceptor->Magento\Framework\Interception\{closure}() called at [vendor/magento/module-backend/App/Action/Plugin/Authentication.php:143]
#27 Magento\Backend\App\Action\Plugin\Authentication->aroundDispatch() called at [vendor/magento/framework/Interception/Interceptor.php:135]
#28 Prince\Faq\Controller\Adminhtml\FaqGroup\Index\Interceptor->Magento\Framework\Interception\{closure}() called at [vendor/magento/framework/Interception/Interceptor.php:153]
#29 Prince\Faq\Controller\Adminhtml\FaqGroup\Index\Interceptor->___callPlugins() called at [generated/code/Prince/Faq/Controller/Adminhtml/FaqGroup/Index/Interceptor.php:39]
#30 Prince\Faq\Controller\Adminhtml\FaqGroup\Index\Interceptor->dispatch() called at [vendor/magento/framework/App/FrontController.php:159]
#31 Magento\Framework\App\FrontController->processRequest() called at [vendor/magento/framework/App/FrontController.php:99]
#32 Magento\Framework\App\FrontController->dispatch() called at [vendor/magento/framework/Interception/Interceptor.php:58]
#33 Magento\Framework\App\FrontController\Interceptor->___callParent() called at [vendor/magento/framework/Interception/Interceptor.php:138]
#34 Magento\Framework\App\FrontController\Interceptor->Magento\Framework\Interception\{closure}() called at [vendor/magento/framework/Interception/Interceptor.php:153]
#35 Magento\Framework\App\FrontController\Interceptor->___callPlugins() called at [generated/code/Magento/Framework/App/FrontController/Interceptor.php:26]
#36 Magento\Framework\App\FrontController\Interceptor->dispatch() called at [vendor/magento/framework/App/Http.php:137]
#37 Magento\Framework\App\Http->launch() called at [vendor/magento/framework/App/Bootstrap.php:261]
#38 Magento\Framework\App\Bootstrap->run() called at [pub/index.php:40]

[lamda]

Does anyone have any pointers on how to solve this?

[lamda]

If you delete the following block from the UI Component xml file, things appear to be working normally for me:

<argument name="context" xsi:type="configurableObject"> <argument name="class" xsi:type="string">Magento\Framework\View\Element\UiComponent\Context</argument> <argument name="namespace" xsi:type="string">prince_faq_index</argument> </argument>

[hidonet]

@lamda yes. it's worked for me too. Thanks.

[mrtuvn]

delete is not good way. Add di.xml for whitelist class instead

[lamda]

Could you explain what you mean by that? Why is not good? And any pointers on how one could add that to di.xml?

[shinesoftware]

Why do we need to delete these rows? What is changed in the last version of Magento?

[ilnytskyi]

Or just implement Magento\Framework\Data\OptionSourceInterface for that Context class

[rustavellyne]

just add to app/etc/di.xml
<item name="2" xsi:type="string">Magento\Framework\View\Element\UiComponent\ContextInterface</item>

 <type name="Magento\Framework\View\Element\UiComponent\Argument\Interpreter\ConfigurableObject">
        <arguments>
            <argument name="classWhitelist" xsi:type="array">
                <item name="0" xsi:type="string">Magento\Framework\Data\OptionSourceInterface</item>
                <item name="1" xsi:type="string">Magento\Framework\View\Element\UiComponent\DataProvider\DataProviderInterface</item>
                <item name="2" xsi:type="string">Magento\Framework\View\Element\UiComponent\ContextInterface</item>
            </argument>
        </arguments>
    </type>

[DylanHopman]

@lamda got the right fix for it. You can find the file in your module -> etc/view/adminhtml/ui_component

[jithutj]

just add to app/etc/di.xml
<item name="2" xsi:type="string">Magento\Framework\View\Element\UiComponent\ContextInterface</item>

 <type name="Magento\Framework\View\Element\UiComponent\Argument\Interpreter\ConfigurableObject">
        <arguments>
            <argument name="classWhitelist" xsi:type="array">
                <item name="0" xsi:type="string">Magento\Framework\Data\OptionSourceInterface</item>
                <item name="1" xsi:type="string">Magento\Framework\View\Element\UiComponent\DataProvider\DataProviderInterface</item>
                <item name="2" xsi:type="string">Magento\Framework\View\Element\UiComponent\ContextInterface</item>
            </argument>
        </arguments>
    </type>

Thank You its working!!!

[virtualLast]

I added this to an over ride di.xml file and its resolved the issue. I wasnt sure if app/etc/di.xml would be over ridden in future core magento updates. Can someone explain a little about what the above is doing?