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've run into this twice and there is a really easy solution - instead of db migrations, run this:

heroku run rake db:create 
# optionally with --app your_apps_name if you have multiple apps.

then:

rake db:schema:load