Magento2 setup:upgrade Undefined index notice

Question

Using the latest version of Magent2; 2.3.5 currently. When running the setup:upgrade query, we are hitting the below error:

Notice: Undefined index: store in /siteurl/public/vendor/magento/framework/Setup/Declaration/Schema/Db/SchemaBuilder.php on line 152

Looking at the store table, the admin ID has at somepoint changed from 0 to 2. Which is the likely issue. When restoring an old backup of this table, the id of 2 remains.

How is the above error rectified?

Answer 1

There is a foreign key in one table which leads to another unexisting table. To find where it is, you should access the file: siteurl/public/vendor/magento/framework/Setup/Declaration/Schema/Db.

Before the line 152, fix the code following this image: https://prnt.sc/sjjvww