Failure/Error: resolve
     Bundler::VersionConflict:
       Bundler could not find compatible versions for gem "json":
         In Gemfile:
           chef_app_error (>= 0) ruby (dependency: chef) depends on
             json (<= 1.7.7, >= 1.4.4) ruby

           chef_app_error (>= 0) ruby (dependency: berkshelf) depends on
             json (1.8.0)