undefined method `database_authenticatable' for #

Question

I am using Active Admin gem for my small application based on Quiz. But when I execute rake db:migrate it gives me error. Following is the trace of the comm

Answer 1

I think the problem might be as result of changes in Devise 2.0 migration schema style. Check out new schema format on the link below. Update migration accordingly and try again. This worked for me especially with #heroku

https://github.com/plataformatec/devise/wiki/How-To:-Upgrade-to-Devise-2.0-migration-schema-style