Rails 4.1.0.beta1升级失败

Question

我最近试图安装rails 4.1.0.beta1，但是rails s导致下面的错误。

[RVM]/gems/ruby-2.0.0-p247/gems/activesupport-4.1.0.beta1/lib/active_support/core_ext/module/aliasing.rb:32:in `alias_method': undefined method `graft' for class `ActiveRecord::Associations::JoinDependency' (NameError) 
[RVM]/gems/ruby-2.0.0-p247/gems/activesupport-4.1.0.beta1/lib/active_support/core_ext/module/aliasing.rb:32:in `alias_method_chain' 
[RVM]/gems/ruby-2.0.0-p247/gems/polyamorous-0.6.4/lib/polyamorous/join_dependency.rb:7:in `block in included' 
[RVM]/gems/ruby-2.0.0-p247/gems/polyamorous-0.6.4/lib/polyamorous/join_dependency.rb:5:in `class_eval' 
[RVM]/gems/ruby-2.0.0-p247/gems/polyamorous-0.6.4/lib/polyamorous/join_dependency.rb:5:in `included' 
[RVM]/gems/ruby-2.0.0-p247/gems/polyamorous-0.6.4/lib/polyamorous.rb:20:in `include' 
[RVM]/gems/ruby-2.0.0-p247/gems/polyamorous-0.6.4/lib/polyamorous.rb:20:in `<top (required)>' 
[RVM]/gems/ruby-2.0.0-p247/gems/activesupport-4.1.0.beta1/lib/active_support/dependencies.rb:247:in `require' 
[RVM]/gems/ruby-2.0.0-p247/gems/activesupport-4.1.0.beta1/lib/active_support/dependencies.rb:247:in `block in require' 
[RVM]/gems/ruby-2.0.0-p247/gems/activesupport-4.1.0.beta1/lib/active_support/dependencies.rb:232:in `load_dependency' 
[RVM]/gems/ruby-2.0.0-p247/gems/activesupport-4.1.0.beta1/lib/active_support/dependencies.rb:247:in `require' 
[RVM]/gems/ruby-2.0.0-p247/gems/ransack-1.1.0/lib/ransack/adapters/active_record/3.1/context.rb:3:in `<top (required)>' 
[RVM]/gems/ruby-2.0.0-p247/gems/activesupport-4.1.0.beta1/lib/active_support/dependencies.rb:247:in `require' 
[RVM]/gems/ruby-2.0.0-p247/gems/activesupport-4.1.0.beta1/lib/active_support/dependencies.rb:247:in `block in require' 
[RVM]/gems/ruby-2.0.0-p247/gems/activesupport-4.1.0.beta1/lib/active_support/dependencies.rb:232:in `load_dependency' 
[RVM]/gems/ruby-2.0.0-p247/gems/activesupport-4.1.0.beta1/lib/active_support/dependencies.rb:247:in `require' 
[RVM]/gems/ruby-2.0.0-p247/gems/ransack-1.1.0/lib/ransack/adapters/active_record/3.2/context.rb:2:in `<top (required)>' 
[RVM]/gems/ruby-2.0.0-p247/gems/activesupport-4.1.0.beta1/lib/active_support/dependencies.rb:247:in `require' 
[RVM]/gems/ruby-2.0.0-p247/gems/activesupport-4.1.0.beta1/lib/active_support/dependencies.rb:247:in `block in require' 
[RVM]/gems/ruby-2.0.0-p247/gems/activesupport-4.1.0.beta1/lib/active_support/dependencies.rb:232:in `load_dependency' 
[RVM]/gems/ruby-2.0.0-p247/gems/activesupport-4.1.0.beta1/lib/active_support/dependencies.rb:247:in `require' 
[RVM]/gems/ruby-2.0.0-p247/gems/ransack-1.1.0/lib/ransack/adapters/active_record/context.rb:2:in `<top (required)>' 
[RVM]/gems/ruby-2.0.0-p247/gems/activesupport-4.1.0.beta1/lib/active_support/dependencies.rb:247:in `require' 
[RVM]/gems/ruby-2.0.0-p247/gems/activesupport-4.1.0.beta1/lib/active_support/dependencies.rb:247:in `block in require' 
[RVM]/gems/ruby-2.0.0-p247/gems/activesupport-4.1.0.beta1/lib/active_support/dependencies.rb:232:in `load_dependency' 
[RVM]/gems/ruby-2.0.0-p247/gems/activesupport-4.1.0.beta1/lib/active_support/dependencies.rb:247:in `require' 
[RVM]/gems/ruby-2.0.0-p247/gems/ransack-1.1.0/lib/ransack/adapters/active_record.rb:12:in `<top (required)>' 
[RVM]/gems/ruby-2.0.0-p247/gems/activesupport-4.1.0.beta1/lib/active_support/dependencies.rb:247:in `require' 
[RVM]/gems/ruby-2.0.0-p247/gems/activesupport-4.1.0.beta1/lib/active_support/dependencies.rb:247:in `block in require' 
[RVM]/gems/ruby-2.0.0-p247/gems/activesupport-4.1.0.beta1/lib/active_support/dependencies.rb:232:in `load_dependency' 
[RVM]/gems/ruby-2.0.0-p247/gems/activesupport-4.1.0.beta1/lib/active_support/dependencies.rb:247:in `require' 
[RVM]/gems/ruby-2.0.0-p247/gems/ransack-1.1.0/lib/ransack.rb:22:in `<top (required)>' 
[RVM]/gems/ruby-2.0.0-p247/gems/activesupport-4.1.0.beta1/lib/active_support/dependencies.rb:247:in `require' 
[RVM]/gems/ruby-2.0.0-p247/gems/activesupport-4.1.0.beta1/lib/active_support/dependencies.rb:247:in `block in require' 
[RVM]/gems/ruby-2.0.0-p247/gems/activesupport-4.1.0.beta1/lib/active_support/dependencies.rb:232:in `load_dependency' 
[RVM]/gems/ruby-2.0.0-p247/gems/activesupport-4.1.0.beta1/lib/active_support/dependencies.rb:247:in `require' 
[RVM]/gems/ruby-2.0.0-p247/bundler/gems/active_admin-85b9f8164809/lib/active_admin.rb:2:in `<top (required)>' 
[RVM]/gems/ruby-2.0.0-p247/gems/activesupport-4.1.0.beta1/lib/active_support/dependencies.rb:247:in `require' 
[RVM]/gems/ruby-2.0.0-p247/gems/activesupport-4.1.0.beta1/lib/active_support/dependencies.rb:247:in `block in require' 
[RVM]/gems/ruby-2.0.0-p247/gems/activesupport-4.1.0.beta1/lib/active_support/dependencies.rb:232:in `load_dependency' 
[RVM]/gems/ruby-2.0.0-p247/gems/activesupport-4.1.0.beta1/lib/active_support/dependencies.rb:247:in `require' 
[RVM]/gems/ruby-2.0.0-p247/bundler/gems/active_admin-85b9f8164809/lib/activeadmin.rb:1:in `<top (required)>' 
[RVM]/gems/ruby-2.0.0-p247/gems/bundler-1.3.5/lib/bundler/runtime.rb:72:in `require' 
[RVM]/gems/ruby-2.0.0-p247/gems/bundler-1.3.5/lib/bundler/runtime.rb:72:in `block (2 levels) in require' 
[RVM]/gems/ruby-2.0.0-p247/gems/bundler-1.3.5/lib/bundler/runtime.rb:70:in `each' 
[RVM]/gems/ruby-2.0.0-p247/gems/bundler-1.3.5/lib/bundler/runtime.rb:70:in `block in require' 
[RVM]/gems/ruby-2.0.0-p247/gems/bundler-1.3.5/lib/bundler/runtime.rb:59:in `each' 
[RVM]/gems/ruby-2.0.0-p247/gems/bundler-1.3.5/lib/bundler/runtime.rb:59:in `require' 
[RVM]/gems/ruby-2.0.0-p247/gems/bundler-1.3.5/lib/bundler.rb:132:in `require' 
[RAILS_ROOT}/config/application.rb:8:in `<top (required)>' 
[RVM]/gems/ruby-2.0.0-p247/gems/railties-4.1.0.beta1/lib/rails/commands/commands_tasks.rb:79:in `require' 
[RVM]/gems/ruby-2.0.0-p247/gems/railties-4.1.0.beta1/lib/rails/commands/commands_tasks.rb:79:in `block in server' 
[RVM]/gems/ruby-2.0.0-p247/gems/railties-4.1.0.beta1/lib/rails/commands/commands_tasks.rb:76:in `tap' 
[RVM]/gems/ruby-2.0.0-p247/gems/railties-4.1.0.beta1/lib/rails/commands/commands_tasks.rb:76:in `server' 
[RVM]/gems/ruby-2.0.0-p247/gems/railties-4.1.0.beta1/lib/rails/commands/commands_tasks.rb:40:in `run_command!' 
[RVM]/gems/ruby-2.0.0-p247/gems/railties-4.1.0.beta1/lib/rails/commands.rb:17:in `<top (required)>' 

这是我目前的系统。

• 红宝石2.0.0
• 轨4.1.0.beta1

为什么失败？

Answer 1

由于Ransack依赖的Polyamorous而失败。

下面是activerecord-hackery/polyamorous一个悬而未决的问题，以保持眼睛上https://github.com/activerecord-hackery/polyamorous/issues/6

UPDATE

为了得到它与4.1工作，把这个在您的Gemfile

gem 'formtastic', github: 'justinfrench/formtastic' 
gem 'ransack', github: 'activerecord-hackery/ransack', branch: 'rails-4.1' 
gem 'polyamorous', github: 'activerecord-hackery/polyamorous' 
gem 'activeadmin', github: 'gregbell/active_admin'