After migration from magento 1 to magento 2 customers giving eror

Question

After migrating data from Magento 1 to Magento 2 When I click on customers in admin area it gives this error

{"0":"Type Error occurred when creating object: Magento\Eav\Model\Entity\Attribute\Source\Config","1":"#1 Magento\Framework\ObjectManager\Factory\Compiled->create() called at [vendor/magento/framework/ObjectManager/ObjectManager.php:56]\n#2 Magento\Framework\ObjectManager\ObjectManager->create() called at [vendor/magento/framework/Validator/UniversalFactory.php:36]\n#3 Magento\Framework\Validator\UniversalFactory->create() called at [vendor/magento/module-eav/Model/Entity/Attribute/AbstractAttribute.php:642]\n#4 Magento\Eav\Model\Entity\Attribute\AbstractAttribute->getSource() called at [vendor/magento/module-customer/Model/AttributeMetadataConverter.php:68]\n#5 Magento\Customer\Model\AttributeMetadataConverter->createMetadataAttribute() called at [vendor/magento/module-customer/Model/Metadata/CustomerMetadata.php:87]\n#6 Magento\Customer\Model\Metadata\CustomerMetadata->getAttributeMetadata() called at [vendor/magento/module-customer/Model/Metadata/CustomerMetadata.php:119]\n#7 Magento\Customer\Model\Metadata\CustomerMetadata->getAllAttributesMetadata() called at [vendor/magento/module-customer/Model/Metadata/CachedMetadata.php:85]\n#8 Magento\Customer\Model\Metadata\CachedMetadata->getAllAttributesMetadata() called at [vendor/magento/module-customer/Ui/Component/Listing/AttributeRepository.php:83]\n#9 Magento\Customer\Ui\Component\Listing\AttributeRepository->getList() called at [vendor/magento/module-customer/Ui/Component/Listing/Columns.php:102]\n#10 Magento\Customer\Ui\Component\Listing\Columns->prepare() called at [vendor/magento/framework/Interception/Interceptor.php:58]\n#11 Magento\Customer\Ui\Component\Listing\Columns\Interceptor->___callParent() called at [vendor/magento/framework/Interception/Interceptor.php:138]\n#12 Magento\Customer\Ui\Component\Listing\Columns\Interceptor->Magento\Framework\Interception\{closure}() called at [app/code/Amasty/Orderattr/Model/ResourceModel/Value/Plugin/Order/Grid/Columns.php:58]\n#13 Amasty\Orderattr\Model\ResourceModel\Value\Plugin\Order\Grid\Columns->aroundPrepare() called at [vendor/magento/framework/Interception/Interceptor.php:135]\n#14 Magento\Customer\Ui\Component\Listing\Columns\Interceptor->Magento\Framework\Interception\{closure}() called at [vendor/magento/framework/Interception/Interceptor.php:153]\n#15 Magento\Customer\Ui\Component\Listing\Columns\Interceptor->___callPlugins() called at [generated/code/Magento/Customer/Ui/Component/Listing/Columns/Interceptor.php:26]\n#16 Magento\Customer\Ui\Component\Listing\Columns\Interceptor->prepare() called at [vendor/magento/framework/View/Layout/Generator/UiComponent.php:164]\n#17 Magento\Framework\View\Layout\Generator\UiComponent->prepareComponent() called at [vendor/magento/framework/View/Layout/Generator/UiComponent.php:161]\n#18 Magento\Framework\View\Layout\Generator\UiComponent->prepareComponent() called at [vendor/magento/framework/View/Layout/Generator/UiComponent.php:142]\n#19 Magento\Framework\View\Layout\Generator\UiComponent->generateComponent() called at [vendor/magento/framework/View/Layout/Generator/UiComponent.php:103]\n#20 Magento\Framework\View\Layout\Generator\UiComponent->process() called at [vendor/magento/framework/View/Layout/GeneratorPool.php:81]\n#21 Magento\Framework\View\Layout\GeneratorPool->process() called at [vendor/magento/framework/View/Layout.php:343]\n#22 Magento\Framework\View\Layout->generateElements() called at [generated/code/Magento/Framework/View/Layout/Interceptor.php:89]\n#23 Magento\Framework\View\Layout\Interceptor->generateElements() called at [vendor/magento/framework/View/Layout/Builder.php:129]\n#24 Magento\Framework\View\Layout\Builder->generateLayoutBlocks() called at [vendor/magento/framework/View/Page/Builder.php:55]\n#25 Magento\Framework\View\Page\Builder->generateLayoutBlocks() called at [vendor/magento/framework/View/Layout/Builder.php:65]\n#26 Magento\Framework\View\Layout\Builder->build() called at [vendor/magento/framework/View/Layout.php:253]\n#27 Magento\Framework\View\Layout->build() called at [vendor/magento/framework/View/Layout.php:875]\n#28 Magento\Framework\View\Layout->getBlock() called at [generated/code/Magento/Framework/View/Layout/Interceptor.php:414]\n#29 Magento\Framework\View\Layout\Interceptor->getBlock() called at [vendor/magento/module-backend/Model/View/Result/Page.php:26]\n#30 Magento\Backend\Model\View\Result\Page->setActiveMenu() called at [generated/code/Magento/Backend/Model/View/Result/Page/Interceptor.php:24]\n#31 Magento\Backend\Model\View\Result\Page\Interceptor->setActiveMenu() called at [vendor/magento/module-customer/Controller/Adminhtml/Index/Index.php:28]\n#32 Magento\Customer\Controller\Adminhtml\Index\Index->execute() called at [vendor/magento/framework/App/Action/Action.php:108]\n#33 Magento\Framework\App\Action\Action->dispatch() called at [vendor/magento/module-backend/App/AbstractAction.php:231]\n#34 Magento\Backend\App\AbstractAction->dispatch() called at [vendor/magento/framework/Interception/Interceptor.php:58]\n#35 Magento\Customer\Controller\Adminhtml\Index\Index\Interceptor->___callParent() called at [vendor/magento/framework/Interception/Interceptor.php:138]\n#36 Magento\Customer\Controller\Adminhtml\Index\Index\Interceptor->Magento\Framework\Interception\{closure}() called at [vendor/magento/module-backend/App/Action/Plugin/Authentication.php:143]\n#37 Magento\Backend\App\Action\Plugin\Authentication->aroundDispatch() called at [vendor/magento/framework/Interception/Interceptor.php:135]\n#38 Magento\Customer\Controller\Adminhtml\Index\Index\Interceptor->Magento\Framework\Interception\{closure}() called at [vendor/magento/framework/Interception/Interceptor.php:153]\n#39 Magento\Customer\Controller\Adminhtml\Index\Index\Interceptor->___callPlugins() called at [generated/code/Magento/Customer/Controller/Adminhtml/Index/Index/Interceptor.php:26]\n#40 Magento\Customer\Controller\Adminhtml\Index\Index\Interceptor->dispatch() called at [vendor/magento/framework/App/FrontController.php:159]\n#41 Magento\Framework\App\FrontController->processRequest() called at [vendor/magento/framework/App/FrontController.php:99]\n#42 Magento\Framework\App\FrontController->dispatch() called at [vendor/magento/framework/Interception/Interceptor.php:58]\n#43 Magento\Framework\App\FrontController\Interceptor->___callParent() called at [vendor/magento/framework/Interception/Interceptor.php:138]\n#44 Magento\Framework\App\FrontController\Interceptor->Magento\Framework\Interception\{closure}() called at [vendor/magento/framework/Interception/Interceptor.php:153]\n#45 Magento\Framework\App\FrontController\Interceptor->___callPlugins() called at [generated/code/Magento/Framework/App/FrontController/Interceptor.php:26]\n#46 Magento\Framework\App\FrontController\Interceptor->dispatch() called at [vendor/magento/framework/App/Http.php:137]\n#47 Magento\Framework\App\Http->launch() called at [generated/code/Magento/Framework/App/Http/Interceptor.php:24]\n#48 Magento\Framework\App\Http\Interceptor->launch() called at [vendor/magento/framework/App/Bootstrap.php:261]\n#49 Magento\Framework\App\Bootstrap->run() called at [index.php:39]\n</pre>","url":"/stadmin/customer/index/","script_name":"/index.php"}

Answer 1

I fixed the issue I edited customer_eav_attribute table and removed records, there were some records with wrong Attribute ID table should list in sequence but I found some records where showing like 1,2,3,4,5, 10,12,14,20 I just removed 10,12,14,20 and it worked fine ! if anyone have the same issue I strongly recommend you to take back of table first!

Answer 2

I had this same issue. It turned out to be some extra entries in the "eav_customer_attribute" table. Once I removed these entries the page loaded and worked fine.

I also found that this issue caused the customers address to be saved as a new entry on every order.