cap deployment is failing with "LoadError: cannot load such file -- sidekiq/capistrano"

Question

While upgrading the app's rails version to 4.1, I have upgraded all gems with "bundle update"

But after upgrading, my Capistrano script was failing with the following error,

cap aborted!
LoadError: cannot load such file -- sidekiq/capistrano

Answer 1

With "bundle update", sidekiq gem also get updated to 3.0.0

In sidekiq 3.0.0, capistrano integrated support has been removed.

Instead, we can use capistrano-sidekiq gem. Add gem into Gemfile and do bundle install

gem "capistrano-sidekiq"

and replace "require 'sidekiq/capistrano'" in Capfile with

require 'capistrano/sidekiq'

Answer 2

I had this same problem when I ran cap production deploy

My solution:

bundle exec cap production deploy