Getting Sidekiq error "delay is defined by Active Record"

Reason: You very likely have a model that has a delay attribute.

You can configure Sidekiq to remove its delay method by adding this to your Sidekiq initializer:

CopySidekiq.remove_delay!

If you need to keep Sidekiqs delay features, add Sidekiq.hook_rails! before the option above. The sidekiq methods will be prefixed with sidekiq_ then.