This was working and now it's not.
No idea why or how.
Can you provide a stack trace or something for us to look at? Maybe we can help diagnose the issue.
Thanks for your submission! The ryanb/cancan repository has been inactive since Sep 06, 2013.
Since only Ryan himself has commit permissions, the CanCan project is on a standstill.
CanCan has many open issues, including missing support for Rails 4. To keep CanCan alive, an active fork exists at cancancommunity/cancancan. The new gem is cancancan. More info is available at #994.
If your pull request or issue is still applicable, it would be really appreciated if you resubmit it to CanCanCan.
We hope to see you on the other side!