Sidekiq ProTip #1
Is Sidekig giving you:
TypeError: can't dump anonymous class Class? aka the most helpful error message in the world?
It takes some digging, but here is the deal: Sidekiq's .delay method only works with Ruby 1.9.3. So if you're doing
@user.delay.some_long_running_method, it'll fail unless you're on 1.9.3. See: Sidekiq Issue #84.