Question

I am using Rails 3.1.3 and getting the following error when executing a cuke:

undefined method `source_tag_names' for #<Cucumber::Ast::Scenario:0x00000104a7e770>(NoMethodError)
../gems/capybara-1.1.2/lib/capybara/cucumber.rb:18:in `Before'

Here is my Gemfile:

gem 'rails', '3.1.3'
group :test, :development do
  gem 'rspec-rails', '~> 2.7.0'
  gem 'cucumber', '~> 1.1.3'
  gem 'capybara', '~> 1.1.2'
  gem 'nokogiri', '~> 1.5.0'
  gem 'cucumber-rails', '~> 1.2.1'
  gem "database_cleaner"
end

I added specific versions after all else failed (getting latest).

Does anyone have an idea what’s wrong with my setup?

Answer 1

cucumber 1.1.5 introduced a backwards-incompatible change that capybara was depending on:

• https://github.com/jnicklas/capybara/pull/644
• https://github.com/cucumber/cucumber/issues/227

Make sure you’re using the latest version of cucumber, and you should be good!