capistrano 3.0.1 Don't know how to build task 'starting' when using capistrano/rails/assets

Question

When trying to deploy with Capistrano 3.0.1 I get the following error:

cap aborted!
Don't know how to build task 'starting'
/Users/user/.rvm/gems/ruby-2.0.0-p353/gems/capistrano-3.0.1/lib/capistrano/dsl/task_enhancements.rb:5:in `before'
/Users/user/.rvm/gems/ruby-2.0.0-p353/gems/capistrano-rails-1.1.0/lib/capistrano/tasks/assets.rake:9:in `block in <top (required)>'
/Users/user/.rvm/gems/ruby-2.0.0-p353/gems/capistrano-rails-1.1.0/lib/capistrano/tasks/assets.rake:8:in `<top (required)>'
/Users/user/.rvm/gems/ruby-2.0.0-p353/gems/capistrano-rails-1.1.0/lib/capistrano/rails/assets.rb:1:in `load'
/Users/user/.rvm/gems/ruby-2.0.0-p353/gems/capistrano-rails-1.1.0/lib/capistrano/rails/assets.rb:1:in `<top (required)>'
/Users/user/Documents/rails/shop/Capfile:18:in `require'
/Users/user/Documents/rails/shop/Capfile:18:in `<top (required)>'
/Users/user/.rvm/gems/ruby-2.0.0-p353/gems/capistrano-3.0.1/lib/capistrano/application.rb:22:in `load_rakefile'
/Users/user/.rvm/gems/ruby-2.0.0-p353/gems/capistrano-3.0.1/lib/capistrano/application.rb:12:in `run'
/Users/user/.rvm/gems/ruby-2.0.0-p353/gems/capistrano-3.0.1/bin/cap:3:in `<top (required)>'
/Users/user/.rvm/gems/ruby-2.0.0-p353/bin/cap:23:in `load'
/Users/user/.rvm/gems/ruby-2.0.0-p353/bin/cap:23:in `<main>'
/Users/user/.rvm/gems/ruby-2.0.0-p353/bin/ruby_executable_hooks:15:in `eval'
/Users/user/.rvm/gems/ruby-2.0.0-p353/bin/ruby_executable_hooks:15:in `<main>'
(See full trace by running task with --trace)

This seems to have started when I uncommented the require rows for loading assets and performing migrations in the Capfile:

  # Load DSL and Setup Up Stages
  require 'capistrano/setup'

  # Includes tasks from other gems included in your Gemfile
  #
  # require 'capistrano/rvm'
  # require 'capistrano/rbenv'
  # require 'capistrano/chruby'
  # require 'capistrano/bundler'
  require 'capistrano/rails/assets'
  require 'capistrano/rails/migrations'

  # Loads custom tasks from `lib/capistrano/tasks' if you have any defined.
  Dir.glob('lib/capistrano/tasks/*.cap').each { |r| import r }

and adding the gems to the Gemfile:

gem 'capistrano',  '~> 3.0.0'
gem 'capistrano-rails', '~> 1.1.0'

It's like the required assets are loaded before the default capistrano tasks so they fail because a the time of loading the starting is not yet defined. I'm not sure how to fix this,

any idea?

thanks

Answer 1

"Don't know how to build task" errors can be caused by having the 'require' lines in the wrong order in the Capfile.

Answer 2

The Capfile was missing the line:

 require 'capistrano/deploy'

this is responsible of loading the deployment tasks.

Missing that requirement the tasks won't be loaded and they will be missing.