error

Bundler could not find compatible versions for gem "activesupport":
  In snapshot (Gemfile.lock):
    activesupport (4.0.0)

  In Gemfile:
    acts_as_commentable_with_threading (>= 0) ruby depends on
      activesupport (~> 3.0) ruby

Running `bundle update` will rebuild your snapshot from scratch, using only
the gems in your Gemfile, which may resolve the conflict.

rails4branch

gem 'acts_as_commentable_with_threading', :git => "git://github.com/elight/acts_as_commentable_with_threading.git", :branch => "rails4"


https://github.com/elight/acts_as_commentable_with_threading/commit/87bb364ee0ec3205d6d37f08f61b444c668faaaa


2   +source 'https://rubygems.org'
 	3	 +gem "activerecord", "4.0.0.beta1"
 	4	 +gem "activesupport", "~> 4.0.0.beta1"
 	5	 +gem "awesome_nested_set", :git => "git://github.com/collectiveidea/awesome_nested_set.git", :branch => 'rails4'