Error no implicit conversion of nil into String (TypeError)

[David Forero]

Hello,

When I tried to run the $ rails generate layout:devise bootstrap3 following the Devise QuickStart tutorial and I got the following error:
Please help me find a solution. Been searching online for 2 hours.

update:
Aslo received the exact same error while running:
rails generate pages:home
rails s

It seems the issue is with the adding of =
Devise Initializer

Rails Composer makes one minor change to the Devise initializer file config/initializers/devise.rb:
config.mailer_sender = 'no-reply@' + Rails.application.secrets.domain_name

Thank you for your help

/Users/davefogo/Sites/ideapp/config/initializers/devise.rb:13:in +': no implicit conversion of nil into String (TypeError) from /Users/davefogo/Sites/ideapp/config/initializers/devise.rb:13:inblock in <top (required)>'
from /Users/davefogo/.rbenv/versions/2.1.3/lib/ruby/gems/2.1.0/gems/devise-3.4.1/lib/devise.rb:293:in setup' from /Users/davefogo/Sites/ideapp/config/initializers/devise.rb:3:in<top (required)>'
from /Users/davefogo/.rbenv/versions/2.1.3/lib/ruby/gems/2.1.0/gems/activesupport-4.2.0/lib/active_support/dependencies.rb:268:in load' from /Users/davefogo/.rbenv/versions/2.1.3/lib/ruby/gems/2.1.0/gems/activesupport-4.2.0/lib/active_support/dependencies.rb:268:inblock in load'
from /Users/davefogo/.rbenv/versions/2.1.3/lib/ruby/gems/2.1.0/gems/activesupport-4.2.0/lib/active_support/dependencies.rb:240:in load_dependency' from /Users/davefogo/.rbenv/versions/2.1.3/lib/ruby/gems/2.1.0/gems/activesupport-4.2.0/lib/active_support/dependencies.rb:268:inload'
from /Users/davefogo/.rbenv/versions/2.1.3/lib/ruby/gems/2.1.0/gems/railties-4.2.0/lib/rails/engine.rb:652:in block in load_config_initializer' from /Users/davefogo/.rbenv/versions/2.1.3/lib/ruby/gems/2.1.0/gems/activesupport-4.2.0/lib/active_support/notifications.rb:166:ininstrument'
from /Users/davefogo/.rbenv/versions/2.1.3/lib/ruby/gems/2.1.0/gems/railties-4.2.0/lib/rails/engine.rb:651:in load_config_initializer' from /Users/davefogo/.rbenv/versions/2.1.3/lib/ruby/gems/2.1.0/gems/railties-4.2.0/lib/rails/engine.rb:616:inblock (2 levels) in class:Engine'
from /Users/davefogo/.rbenv/versions/2.1.3/lib/ruby/gems/2.1.0/gems/railties-4.2.0/lib/rails/engine.rb:615:in each' from /Users/davefogo/.rbenv/versions/2.1.3/lib/ruby/gems/2.1.0/gems/railties-4.2.0/lib/rails/engine.rb:615:inblock in class:Engine'
from /Users/davefogo/.rbenv/versions/2.1.3/lib/ruby/gems/2.1.0/gems/railties-4.2.0/lib/rails/initializable.rb:30:in instance_exec' from /Users/davefogo/.rbenv/versions/2.1.3/lib/ruby/gems/2.1.0/gems/railties-4.2.0/lib/rails/initializable.rb:30:inrun'
from /Users/davefogo/.rbenv/versions/2.1.3/lib/ruby/gems/2.1.0/gems/railties-4.2.0/lib/rails/initializable.rb:55:in block in run_initializers' from /Users/davefogo/.rbenv/versions/2.1.3/lib/ruby/2.1.0/tsort.rb:226:inblock in tsort_each'
from /Users/davefogo/.rbenv/versions/2.1.3/lib/ruby/2.1.0/tsort.rb:348:in block (2 levels) in each_strongly_connected_component' from /Users/davefogo/.rbenv/versions/2.1.3/lib/ruby/2.1.0/tsort.rb:418:inblock (2 levels) in each_strongly_connected_component_from'
from /Users/davefogo/.rbenv/versions/2.1.3/lib/ruby/2.1.0/tsort.rb:427:in each_strongly_connected_component_from' from /Users/davefogo/.rbenv/versions/2.1.3/lib/ruby/2.1.0/tsort.rb:417:inblock in each_strongly_connected_component_from'
from /Users/davefogo/.rbenv/versions/2.1.3/lib/ruby/gems/2.1.0/gems/railties-4.2.0/lib/rails/initializable.rb:44:in each' from /Users/davefogo/.rbenv/versions/2.1.3/lib/ruby/gems/2.1.0/gems/railties-4.2.0/lib/rails/initializable.rb:44:intsort_each_child'
from /Users/davefogo/.rbenv/versions/2.1.3/lib/ruby/2.1.0/tsort.rb:411:in call' from /Users/davefogo/.rbenv/versions/2.1.3/lib/ruby/2.1.0/tsort.rb:411:ineach_strongly_connected_component_from'
from /Users/davefogo/.rbenv/versions/2.1.3/lib/ruby/2.1.0/tsort.rb:347:in block in each_strongly_connected_component' from /Users/davefogo/.rbenv/versions/2.1.3/lib/ruby/2.1.0/tsort.rb:345:ineach'
from /Users/davefogo/.rbenv/versions/2.1.3/lib/ruby/2.1.0/tsort.rb:345:in call' from /Users/davefogo/.rbenv/versions/2.1.3/lib/ruby/2.1.0/tsort.rb:345:ineach_strongly_connected_component'
from /Users/davefogo/.rbenv/versions/2.1.3/lib/ruby/2.1.0/tsort.rb:224:in tsort_each' from /Users/davefogo/.rbenv/versions/2.1.3/lib/ruby/2.1.0/tsort.rb:205:intsort_each'
from /Users/davefogo/.rbenv/versions/2.1.3/lib/ruby/gems/2.1.0/gems/railties-4.2.0/lib/rails/initializable.rb:54:in run_initializers' from /Users/davefogo/.rbenv/versions/2.1.3/lib/ruby/gems/2.1.0/gems/railties-4.2.0/lib/rails/application.rb:352:ininitialize!'
from /Users/davefogo/Sites/ideapp/config/environment.rb:5:in <top (required)>' from /Users/davefogo/.rbenv/versions/2.1.3/lib/ruby/gems/2.1.0/gems/activesupport-4.2.0/lib/active_support/dependencies.rb:274:inrequire'
from /Users/davefogo/.rbenv/versions/2.1.3/lib/ruby/gems/2.1.0/gems/activesupport-4.2.0/lib/active_support/dependencies.rb:274:in block in require' from /Users/davefogo/.rbenv/versions/2.1.3/lib/ruby/gems/2.1.0/gems/activesupport-4.2.0/lib/active_support/dependencies.rb:240:inload_dependency'
from /Users/davefogo/.rbenv/versions/2.1.3/lib/ruby/gems/2.1.0/gems/activesupport-4.2.0/lib/active_support/dependencies.rb:274:in require' from /Users/davefogo/.rbenv/versions/2.1.3/lib/ruby/gems/2.1.0/gems/spring-1.3.3/lib/spring/application.rb:92:inpreload'
from /Users/davefogo/.rbenv/versions/2.1.3/lib/ruby/gems/2.1.0/gems/spring-1.3.3/lib/spring/application.rb:143:in serve' from /Users/davefogo/.rbenv/versions/2.1.3/lib/ruby/gems/2.1.0/gems/spring-1.3.3/lib/spring/application.rb:131:inblock in run'
from /Users/davefogo/.rbenv/versions/2.1.3/lib/ruby/gems/2.1.0/gems/spring-1.3.3/lib/spring/application.rb:125:in loop' from /Users/davefogo/.rbenv/versions/2.1.3/lib/ruby/gems/2.1.0/gems/spring-1.3.3/lib/spring/application.rb:125:inrun'
from /Users/davefogo/.rbenv/versions/2.1.3/lib/ruby/gems/2.1.0/gems/spring-1.3.3/lib/spring/application/boot.rb:18:in <top (required)>' from /Users/davefogo/.rbenv/versions/2.1.3/lib/ruby/2.1.0/rubygems/core_ext/kernel_require.rb:55:inrequire'
from /Users/davefogo/.rbenv/versions/2.1.3/lib/ruby/2.1.0/rubygems/core_ext/kernel_require.rb:55:in require' from -e:1:in

'

[David Forero]

Hello is someone supporting this gem? Thank you

[Daniel Kehoe]

Sorry for the slow response. I am traveling with limited Internet access now.

[Daniel Kehoe]

I haven't been able to reproduce your issue. I'm using Ruby 2.2.0p0 and Rails 4.2.1. I create a new app with

$ rails new rails-devise -m https://raw.github.com/RailsApps/rails-composer/master/composer.rb

and then run

$ rails generate layout:devise bootstrap3

without any error.

Do you have a file config/secrets.yml? Does it contain:

development:
  .
  .
  .
  domain_name: example.com

[David Forero]

Hello and thank you for your response

I don't have any secrets configured. I don't have a domain config in
development. I have my own so and have been trying to mimic all parts Rails
composer with no success.

What can I do to help you see my issue? It fails when I change the devise
file to the @no reply in one of the steps.
On Apr 13, 2015 12:07 AM, "Daniel Kehoe" [e-mail] wrote:

I haven't been able to reproduce your issue. I'm using Ruby 2.2.0p0 and
Rails 4.2.1. I create a new app with

$ rails new rails-devise -m https://raw.github.com/RailsApps/rails-composer/master/composer.rb

and then run

$ rails generate layout:devise bootstrap3

without any error.

Do you have a file config/secrets.yml? Does it contain:

development:
.
.
.
domain_name: example.com

—
Reply to this email directly or view it on GitHub
#26 (comment)
.

[Daniel Kehoe]

The rails_layout gem expects you to have a config/secrets.yml file with the Rails.application.secrets.domain_name value set. Set the value in your config/secrets.yml file and you can use the rails_layout gem. Use example.com if you don't have another value.

[David Forero]

Thank you