If you are getting "uninitialized constant ActiveRecord"

[barmstrong]

This fork worked for me:

https://github.com/TV4/sunspot_mongoid

Here is the error I was getting:

rake sunspot:reindex
WARNING: 'task :t, arg, :needs => [deps]' is deprecated. Please use 'task :t, [args] => [deps]' instead.
at /Users/barmstrong/.rvm/gems/ruby-1.9.2-p180@ribbot/gems/sunspot_rails-1.2.1/lib/sunspot/rails/tasks.rb:41:in `block in <top (required)>'
rake aborted!
uninitialized constant ActiveRecord