Bundler::GemRequireError on yard-cucumber 3 when running scenario via "bundle exec cucumber"

[cameronheard]

I'm trying to use:

• yard-cucumber 3.0.0

with:

• ruby 2.3.0
• bundler 1.11.2
• cucumber 2.3.3
• gherkin 3.2
• yard 0.8.7.6

Outside of the context of bundle exec, I'm able to generate documentation. Unfortunately, the rest of my application needs to run in context of Bundler.

When running a Cucumber scenario via "bundle exec cucumber", I get

[error]: Invalid configuration file, using default options.
[error]: NameError: uninitialized constant Cucumber::Gherkin::AstBuilder
[error]: Stack trace:
    /Users/cameron/.rvm/gems/ruby-2.3.0/gems/yard-cucumber-3.0.0/lib/cucumber/city_builder.rb:3:in `<module:Parser>'
    /Users/cameron/.rvm/gems/ruby-2.3.0/gems/yard-cucumber-3.0.0/lib/cucumber/city_builder.rb:2:in `<module:Cucumber>'
    /Users/cameron/.rvm/gems/ruby-2.3.0/gems/yard-cucumber-3.0.0/lib/cucumber/city_builder.rb:1:in `<top (required)>'
    /Users/cameron/.rvm/gems/ruby-2.3.0/gems/yard-cucumber-3.0.0/lib/yard-cucumber.rb:14:in `require'
    /Users/cameron/.rvm/gems/ruby-2.3.0/gems/yard-cucumber-3.0.0/lib/yard-cucumber.rb:14:in `<top (required)>'
    /Users/cameron/.rvm/gems/ruby-2.3.0/gems/yard-0.8.7.6/lib/yard/config.rb:161:in `require'

There was an error while trying to load the gem 'yard-cucumber'. (Bundler::GemRequireError)
/Users/cameron/.rvm/gems/ruby-2.3.0/gems/bundler-1.11.2/lib/bundler/runtime.rb:80:in `rescue in block (2 levels) in require'
/Users/cameron/.rvm/gems/ruby-2.3.0/gems/bundler-1.11.2/lib/bundler/runtime.rb:76:in `block (2 levels) in require'
/Users/cameron/.rvm/gems/ruby-2.3.0/gems/bundler-1.11.2/lib/bundler/runtime.rb:72:in `each'
/Users/cameron/.rvm/gems/ruby-2.3.0/gems/bundler-1.11.2/lib/bundler/runtime.rb:72:in `block in require'
/Users/cameron/.rvm/gems/ruby-2.3.0/gems/bundler-1.11.2/lib/bundler/runtime.rb:61:in `each'
/Users/cameron/.rvm/gems/ruby-2.3.0/gems/bundler-1.11.2/lib/bundler/runtime.rb:61:in `require'
/Users/cameron/.rvm/gems/ruby-2.3.0/gems/bundler-1.11.2/lib/bundler.rb:99:in `require'
/Users/cameron/Desktop/yard_cucumber_example/features/support/env.rb:1:in `<top (required)>'
/Users/cameron/.rvm/gems/ruby-2.3.0/gems/cucumber-2.3.3/lib/cucumber/rb_support/rb_language.rb:96:in `load'
/Users/cameron/.rvm/gems/ruby-2.3.0/gems/cucumber-2.3.3/lib/cucumber/rb_support/rb_language.rb:96:in `load_code_file'
/Users/cameron/.rvm/gems/ruby-2.3.0/gems/cucumber-2.3.3/lib/cucumber/runtime/support_code.rb:142:in `load_file'
/Users/cameron/.rvm/gems/ruby-2.3.0/gems/cucumber-2.3.3/lib/cucumber/runtime/support_code.rb:84:in `block in load_files!'
/Users/cameron/.rvm/gems/ruby-2.3.0/gems/cucumber-2.3.3/lib/cucumber/runtime/support_code.rb:83:in `each'
/Users/cameron/.rvm/gems/ruby-2.3.0/gems/cucumber-2.3.3/lib/cucumber/runtime/support_code.rb:83:in `load_files!'
/Users/cameron/.rvm/gems/ruby-2.3.0/gems/cucumber-2.3.3/lib/cucumber/runtime.rb:254:in `load_step_definitions'
/Users/cameron/.rvm/gems/ruby-2.3.0/gems/cucumber-2.3.3/lib/cucumber/runtime.rb:62:in `run!'
/Users/cameron/.rvm/gems/ruby-2.3.0/gems/cucumber-2.3.3/lib/cucumber/cli/main.rb:32:in `execute!'
/Users/cameron/.rvm/gems/ruby-2.3.0/gems/cucumber-2.3.3/bin/cucumber:8:in `<top (required)>'
/Users/cameron/.rvm/gems/ruby-2.3.0/bin/cucumber:23:in `load'
/Users/cameron/.rvm/gems/ruby-2.3.0/bin/cucumber:23:in `<top (required)>'
-e:1:in `load'
-e:1:in `<main>'

The specific complaint being uninitialized constant Cucumber::Gherkin::AstBuilder in yard-cucumber-3.0.0/lib/cucumber/city_builder.rb

It seems that, with Bundler at least, there is an attempt during inheritance to find Gherkin::AstBuilder within the scope of the parent Cucumber module of city_builder.rb, which doesn't exist.

I experimented and noticed if I added an include Gherkin to city_builder.rb, the errors went away:

include Gherkin
module Cucumber
  module Parser
    class CityBuilder < AstBuilder

I'm not clear what else that change would break, however.

[sharmajai21]

Thanks, @cameronheard it worked for me as well !!!
Just to add one more bit, earlier I had something like:

module Cucumber
module Parser
class CityBuilder < Gherkin::AstBuilder

And I changed it to

include Gherkin
module Cucumber
module Parser
class CityBuilder < AstBuilder