Rails - uninitialised constant AdminUser with ActiveAdmin gem

3
votes

I'm new in Rails and I'll try to install ActiveAdmin to my existing project (Rails 3.2.1).

i've had activeadmin, meta_search, devise and sass-rails in my gemfile. Require devise in the configuration/application.rb.

When I try to run "rails generate active_admin:install" or "rails server", i have an error :

C:/RailsInstaller/Ruby1.9.3/l ive_support/inflector/methods connstant AdminUser (NameError)

I dont know how to fix.

Thanks :)

2
ruby-on-railsactiveadmin
Did you run bundle install? - Trip
Did you accidentally write those typos in your NameError? Or is that how it was returned? - Trip
In fact, I didn't modify anything. I follow this tutorial (net.tutsplus.com/tutorials/ruby/…) and I block in the first step with this error...! - user1603136
Hi,in your gem file you have gem "activeadmin", so replace that with following line and try gem "activeadmin", :git => "git://github.com/gregbell/active_admin.git" - chaitanya
Thanks, I did it, bundle install, new things was installed but after, there is the same error. - user1603136

2 Answers

3
votes

Just delete the following line on routes.rb

devise_for :admin_users, ActiveAdmin::Devise.config

Then rerun

rails g active_admin:install

1
votes

I got this same error after uninstalling and resintalling activeadmin (as I wanted to remove it from admin_user to install it in my own user).

Solution was to search through my project for "admin", and comment all the code that activeadmin had left after uninstall.

The files where I found activeadmin code were:

routes.rb
schema.rb