Notice: Undefined index: category_id in Magento 2.3

[deanna_brown]

When I go to save the product then I get the following notice.

[2019-03-16 14:23:27] main.CRITICAL: Notice: Undefined index: category_id in vendor/magento/module-catalog-url-rewrite/Model/Category/Plugin/Storage.php on line 52

[PankajS_Magento]

Hi @deanna_brown 

I found this third party link I hope it will help you. 

Thanks

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