I get this error after upgrading the extension for Solidus, from v2.4 to v2.7
I found why: solidusio/solidus@0e83b33#diff-6d403e04474bc828ef62de534aafb9d6
They removed the StockTransfer
functionality from core.
I think it would be nice to provide a task to upgrade that will check and updates the permission sets in the db or at least mention it in the README, how to solve this problem.
For the moment I deleted them from the spree_permission_sets
table.