Factory(:some_fact) is causing ActiveRecord::AssociationTypeMismatch while FactoryGirl.create(:some_fact) is not causing it

[Tsvetelina Borisova]

Can you help me and tell me why? 

[Josh Clayton]

Can you post the code calling the factory, your factories file, and the full backtrace?

[Tsvetelina Borisova]

there are too many specs - more than 900 and I track the line where all errors happen:

Factory(:user) - apparently this creates and updates the user though in the update nothing is changed. 

[Josh Clayton]

This is likely because of an error with how you're assigning an association. I can't really provide more insight without seeing the code and the backtrace, though.