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I did upgrade Magento from 2.1.4 to 2.2.2

I am getting issue while editing the product in back end.

1 exception(s): Exception #0 (Exception): Warning: Illegal offset type in isset or empty in /vendor/magento/module-ui/Config/Reader/Definition/Data.php on line 126

Exception #0 (Exception): Warning: Illegal offset type in isset or empty in /vendor/magento/module-ui/Config/Reader/Definition/Data.php on line 126 /vendor/magento/module-ui/Config/Reader/Definition/Data.php(126): Magento\Framework\App\ErrorHandler->handler(2, 'Illegal offset ...', '/var/www/html/u...', 126, Array) /vendor/magento/framework/View/Element/UiComponentFactory.php(382): Magento\Ui\Config\Reader\Definition\Data->get(Array) /vendor/magento/framework/View/Element/UiComponentFactory.php(396): Magento\Framework\View\Element\UiComponentFactory->mergeMetadataItem(Array, Array, false) /vendor/magento/framework/View/Element/UiComponentFactory.php(396): Magento\Framework\View\Element\UiComponentFactory->mergeMetadataItem(Array, Array, false) /vendor/magento/framework/View/Element/UiComponentFactory.php(396): Magento\Framework\View\Element\UiComponentFactory->mergeMetadataItem(Array, Array, false) /vendor/magento/framework/View/Element/UiComponentFactory.php(305): Magento\Framework\View\Element\UiComponentFactory->mergeMetadataItem(Array, .......... ..........

  • Have you find any solution? – Vithal Bariya Mar 14 '18 at 11:48
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I migrated the data from magento 1.9.3.7 to magento 2.2.5 using the data migration tool. When I click the add/Edit product button through admin panel, it showed me the same error. The way I resolved it was to go to Admin->Store->Attribute Set. And edited the Default and Migration_Default Attributes Set. Initially the Migration_Default Attribute had the attribute sets but the Default was empty. I added the attributes to the Default Attribute Set and executed the reindex command

sudo php bin/magento indexer:reindex

Also make sure that the Schedule Design Update Group Contains the following attributes:

custom_design_from

custom_design_to

custom_design

custom_layout

And it worked for me...

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