Bundler 无法为 Rails 4.0.0 找到 gem“railties"的兼容版本

问题描述

我正在尝试升级到 Rails 4.0.0，并且更改了 sass-rails 和 coffee-rails 的 gem 版本.在升级到 Rails 4 之前，我需要解决 rails 和 coffee-rails 之间的这个 gem 冲突.

I am trying to upgrade to Rails 4.0.0, and I changed the gem versions of sass-rails and coffee-rails. I need to resolve this gem conflict between rails and coffee-rails before I can upgrade to Rails 4.

当我运行 bundle update 时，这是我得到的输出:

When I ran bundle update this is the output I got:

$ bundle update
Updating git://github.com/pilu/web-app-theme.git
Fetching source index from https://rubygems.org/
Resolving dependencies..............
Bundler could not find compatible versions for gem "railties":
  In Gemfile:
    rails (= 4.0.0) ruby depends on
      railties (= 4.0.0) ruby

    coffee-rails (= 4.0.0) ruby depends on
      railties (4.0.0.rc2)

我的Gemfile:

source 'https://rubygems.org'

gem 'rails', '4.0.0'

gem 'cancan'
gem 'client_side_validations'
gem 'devise', '~> 1.5.3'
gem 'dynamic_form'
gem 'execjs'
gem 'haml'
gem 'httparty'
gem 'jquery-rails'
gem 'mysql2'
gem 'paperclip', '~> 2.4'
gem 'prawn'
gem 'rails3-jquery-autocomplete'
gem 'rake', '0.9.2'
gem 'remotipart', '~> 1.0'
gem 'simple_datatables'
gem 'therubyracer'
gem 'validates_timeliness', '~> 3.0.2'
gem 'will_paginate', '~> 3.0'

gem 'turbolinks'
gem 'jquery-turbolinks'

gem 'noty-rails'

gem 'font-awesome-rails'

gem 'socket.io-rails'

gem 'attr_encrypted'

gem 'bullet', :group => 'development'

#temp for demo.managetherapy.com
#gem 'faker'

group :test do
  gem 'capybara'
  gem 'cucumber-rails', :require => false
  gem 'database_cleaner'
  gem 'factory_girl_rails'
#  gem 'faker'
  gem 'guard-rspec'
  gem 'selenium-webdriver', '2.7.0'
  gem 'webrat'
end

group :development, :test do
  gem 'faker'
  gem 'haml-rails'
  gem 'hpricot'
  gem 'rspec-rails'
  gem 'ruby_parser'
  #gem 'web-app-theme', '~> 0.8.0'
  gem 'web-app-theme', :git =>'git://github.com/pilu/web-app-theme.git'
end

gem 'sass-rails', '4.0.0'
gem 'compass-rails', '1.0.3'
gem 'coffee-rails', '4.0.0'
gem 'uglifier', '>= 2.1.1'
gem 'bootstrap-sass-rails'

# Use unicorn as the web server
#gem 'unicorn'

# Deploy with Capistrano
gem 'capistrano'
gem 'rvm-capistrano'

gem 'passenger'

推荐答案

Also bundle update 只允许你一次更新一个 gem，如果你更新到 Rails 就很难4 和一大堆 gems 必须同时更新.

Also bundle update only allows you to update one gem at a time, which is hard if you are updating to Rails 4 and a whole lot of gems have to be updated at the same time.

我通过删除 Gemfile.lock 并执行 bundle install 解决了这个问题.

I solved this by deleting the Gemfile.lock and doing bundle install.

这当然是假设您的 Gemfile 中没有冲突的显式 gem 版本.因此，如果失败，请从 Gemfile 中删除版本号.

This is of course assuming you have no conflicting explicit gem version in your Gemfile to start with. So if this fails, remove version numbers from the Gemfile.

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