Problem with several back end pages

winterrowdj · ‎11-28-2016

I have a magento 2.1.2 install. I have used the data migration tool to migrate a magento 1.8.1.0 setting and data as per this guide.

I am getting the following error message on a couple of pages when I try to navigate to them in the backend.

Class Magento\Framework\DB\TransactionFactory does not exist

I get this when trying to go to Content --> Design --> [my store] --> edit

I also get it at Stores --> Configuration

These are the only two I have found so far.

Can anyone shed any light on what this might be? I am guessing it might be an extension that is missing?

Thank you.