Dependency error while installing the gem “joyride-rails”
问题 My rails version is 3.2.12 . I am trying to implement gem "joyride-rails", "~> 0.0.14" in my application, but it clashes with some of my other gems. Already in my Gemfile: gem "haml-rails", ">= 0.4" gem 'activeadmin-mongoid', github: 'elia/activeadmin-mongoid', branch: 'active-admin-spec-suite' When I run the bundle command, I get this error: Bundler could not find compatible versions for gem "haml": In Gemfile: joyride-rails (~> 0.0.14) ruby depends on haml (~> 3.1) ruby haml-rails (>= 0.4)