NoMethodError: protected method devise_mailer called for <User:0x1b8a096f>

[astjohn]

I just received this error after doing some bundle updates

NoMethodError: protected method 'devise_mailer' called for #<User:0x1b8a096f>

Here is the relevant backtrace:

org/jruby/RubyKernel.java:1955 in "public_send"
/gems/activesupport-4.1.8/lib/active_support/core_ext/object/try.rb:45 in "try"
/gems/devise-async-0.9.0/lib/devise/async/backend/base.rb:22 in "mailer_class"
/gems/devise-async-0.9.0/lib/devise/async/backend/base.rb:16 in "perform"
/gems/sidekiq-3.3.0/lib/sidekiq/processor.rb:75 in "execute_job"
/gems/sidekiq-3.3.0/lib/sidekiq/processor.rb:52 in "process"
org/jruby/RubyProc.java:271 in "call"
/gems/sidekiq-3.3.0/lib/sidekiq/middleware/chain.rb:127 in "invoke"

As a temporary fix, we have removed the resource.try(:devise_mailer) for now.

We are using Devise 3.4.1 with sidekiq.

[baschtl]

Hmm, the behavior of try changed in Rails 4.x. Did you move from Rails 3.x to 4.x with this bundle update?

[astjohn]

Yes. Exactly. My bad, I forgot to mention the rails version change.

[baschtl]

I don't see another solution to this problem besides using send in this case as devise_mailer is protected. Do you see a better solution? Otherwise, the “Multiple-Mailers-Per-Model” feature does not work anymore.

[astjohn]

@baschtl - yeah, I can't think of a better way at the moment.