iron_worker_error

Successfully installed net-http-persistent-2.9.4
Successfully installed netrc-0.10.2
Successfully installed rest-3.0.3
Successfully installed iron_core-1.0.5
Successfully installed bundler-1.8.0
Successfully installed rubyzip-1.1.7
Successfully installed iron_worker_ng-1.6.2
7 gems installed
I, [2015-02-11T05:16:41.895906 #17]  INFO -- IronWorkerNG: Found workerfile with path='import_staged_bulk_import.worker'
I, [2015-02-11T05:16:41.896031 #17]  INFO -- IronWorkerNG: Adding ruby gem dependency with name='shopify_api' and version='>= 0'
I, [2015-02-11T05:16:41.896118 #17]  INFO -- IronWorkerNG: Adding ruby gem dependency with name='mongo_mapper' and version='>= 0'
I, [2015-02-11T05:16:41.896145 #17]  INFO -- IronWorkerNG: Adding ruby gem dependency with name='bson_ext' and version='>= 0'
I, [2015-02-11T05:16:41.896167 #17]  INFO -- IronWorkerNG: Adding ruby gem dependency with name='iron_worker_ng' and version='>= 0'
I, [2015-02-11T05:16:41.896197 #17]  INFO -- IronWorkerNG: Detected exec with path='__build__/import_staged_bulk_import.rb' and args='{}'
/mnt/task/__gems__/gems/bundler-1.8.0/lib/bundler/resolver.rb:369:in `resolve': Could not find gem 'shopify_api (>= 0) ruby' in the gems available on this machine. (Bundler::GemNotFound)
	from /mnt/task/__gems__/gems/bundler-1.8.0/lib/bundler/resolver.rb:167:in `start'
	from /mnt/task/__gems__/gems/bundler-1.8.0/lib/bundler/resolver.rb:129:in `resolve'
	from /mnt/task/__gems__/gems/iron_worker_ng-1.6.2/lib/iron_worker_ng/feature/ruby/merge_gem_dependency.rb:65:in `merge_gem_dependency_fixate'
	from /mnt/task/__gems__/gems/iron_worker_ng-1.6.2/lib/iron_worker_ng/code/base.rb:222:in `block in fixate'
	from /mnt/task/__gems__/gems/iron_worker_ng-1.6.2/lib/iron_worker_ng/code/base.rb:221:in `each'
	from /mnt/task/__gems__/gems/iron_worker_ng-1.6.2/lib/iron_worker_ng/code/base.rb:221:in `fixate'
	from /mnt/task/__gems__/gems/iron_worker_ng-1.6.2/lib/iron_worker_ng/code/base.rb:288:in `create_container'
	from /mnt/task/__gems__/gems/iron_worker_ng-1.6.2/lib/iron_worker_ng/client.rb:105:in `codes_create'
	from /mnt/task/__gems__/gems/iron_worker_ng-1.6.2/lib/iron_worker_ng/client.rb:18:in `method_missing'
	from /mnt/task/__builder__.rb:49:in `<top (required)>'
	from /usr/local/lib/site_ruby/1.9.1/rubygems/custom_require.rb:36:in `require'
	from /usr/local/lib/site_ruby/1.9.1/rubygems/custom_require.rb:36:in `require'
	from __runner__.rb:217:in `<main>'
Fetching gem metadata from http://rubygems.org/...........
Fetching version metadata from http://rubygems.org/..
Resolving dependencies...
Installing i18n 0.7.0
Installing json 1.8.2
Installing minitest 5.5.1
Installing thread_safe 0.3.4
Installing tzinfo 1.2.2
Installing activesupport 4.2.0
Installing builder 3.2.2
Installing activemodel 4.2.0
Installing rails-observers 0.1.2
Installing activeresource 4.0.0
Installing bson 1.12.0
Installing bson_ext 1.12.0
Using bundler 1.8.0
Installing coderay 1.1.0
Installing net-http-persistent 2.9.4
Installing netrc 0.10.2
Installing rest 3.0.3
Installing iron_core 1.0.5
Installing rubyzip 1.1.7
Installing iron_worker_ng 1.6.2
Installing method_source 0.8.2
Installing mongo 1.12.0
Installing plucky 0.6.6
Installing mongo_mapper 0.13.1
Installing slop 3.6.0
Installing pry 0.10.1
Installing thor 0.18.1
Installing shopify_api 3.2.7
Bundle complete! 4 Gemfile dependencies, 28 gems now installed.
Bundled gems are installed into ./bundle.
I, [2015-02-11T05:16:53.739150 #17]  INFO -- IronWorkerNG: Fixating gems dependencies