Unable to load backoffice on local

I’m trying to upgrade an existing project from version 7.7.1 to 7.15.4. After moving over the bin and Umbraco folders, I was unable to log into the backoffice on my local server.

It asks me for my login, then renders a completely blank page. This shows up in the console:

 No url found for api name backOfficeAssetsApiBaseUrl

It looks like my login was successful, but nothing is rendering.

Does anyone know how to fix this? I tried to clear my browser cache completely, but nothing worked.


This is a companion discussion topic for the original entry at https://our.umbraco.com/forum/101674-unable-to-load-backoffice-on-local