node app/service/spec/PostService.spec.js error

[salluu]

when i run node app/service/spec/PostService.spec.js it comes back with

Example app listening at http://:::8081
failed Error: Ignoring json-1.8.6 because its extensions are not built. Try: gem pristine json --version 1.8.6
D:/RND/pact-node-example-master/node_modules/@pact-foundation/pact-provider-verifier/node_modules/@pact-foundation/pact-provider-verifier-win32/lib/ruby/lib/ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54:in require': cannot load such file -- bundler/vendor/molinillo/lib/molinillo/modules/specification_provider (LoadError) from D:/RND/pact-node-example-master/node_modules/@pact-foundation/pact-provider-verifier/node_modules/@pact-foundation/pact-provider-verifier-win32/lib/ruby/lib/ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54:in require'
from D:/RND/pact-node-example-master/node_modules/@pact-foundation/pact-provider-verifier/node_modules/@pact-foundation/pact-provider-verifier-win32/lib/ruby/lib/ruby/gems/2.2.0/gems/bundler-1.9.9/lib/bundler/vendor/molinillo/lib/molinillo/resolution.rb:115:in <class:Resolution>' from D:/RND/pact-node-example-master/node_modules/@pact-foundation/pact-provider-verifier/node_modules/@pact-foundation/pact-provider-verifier-win32/lib/ruby/lib/ruby/gems/2.2.0/gems/bundler-1.9.9/lib/bundler/vendor/molinillo/lib/molinillo/resolution.rb:4:in class:Resolver'