在任何源中都找不到 rake-0.8.7 (Bundler::GemNotFound)答案

【问题标题】：Could not find rake-0.8.7 in any of the sources (Bundler::GemNotFound)在任何源中都找不到 rake-0.8.7 (Bundler::GemNotFound)
【发布时间】：2012-04-19 01:12:57
【问题描述】：

我使用的是 Ruby 1.8.7 和 Rails 2.3.5 版本。当我尝试启动服务器时，它会引发以下错误。当我列出 gem 时，它会显示那里的 rake 但版本不同

actionmailer (2.3.5)
actionpack (2.3.5)
activerecord (2.3.5)
activeresource (2.3.5)
activesupport (2.3.5)
bundler (1.1.3)
fattr (2.2.1)
git (1.2.5)
postgres-pr (0.6.3)
rack (1.0.1)
rails (2.3.5)
rake (0.9.2.2)
rush (0.6.8)
session (3.1.0)

请帮我解决这个问题。

D:/ruby/lib/ruby/gems/1.8/gems/bundler-1.1.3/lib/bundler/spec_set.rb:90:in `materialize': Could not find rake-0.8.7 in any of the sources (Bundler::GemNotFound)

        from D:/ruby/lib/ruby/gems/1.8/gems/bundler-1.1.3/lib/bundler/spec_set.rb:83:in `map!'
        from D:/ruby/lib/ruby/gems/1.8/gems/bundler-1.1.3/lib/bundler/spec_set.rb:83:in `materialize'
        from D:/ruby/lib/ruby/gems/1.8/gems/bundler-1.1.3/lib/bundler/definition.rb:127:in `specs'
        from D:/ruby/lib/ruby/gems/1.8/gems/bundler-1.1.3/lib/bundler/definition.rb:172:in `specs_for'
        from D:/ruby/lib/ruby/gems/1.8/gems/bundler-1.1.3/lib/bundler/runtime.rb:11:in `setup'
        from D:/ruby/lib/ruby/gems/1.8/gems/bundler-1.1.3/lib/bundler.rb:114:in `setup'
        from D:/ruby/lib/ruby/gems/1.8/gems/bundler-1.1.3/lib/bundler.rb:119:in `require'
        from D:/safecellweb/config/boot.rb:116:in `load_gems'
        from D:/ruby/lib/ruby/gems/1.8/gems/rails-2.3.5/lib/initializer.rb:164:in `process'
        from D:/ruby/lib/ruby/gems/1.8/gems/rails-2.3.5/lib/initializer.rb:113:in `send'
        from D:/ruby/lib/ruby/gems/1.8/gems/rails-2.3.5/lib/initializer.rb:113:in `run'
        from D:/safecellweb/config/environment.rb:10
        from D:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:36:in `gem_original_require'
        from D:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:36:in `require'
        from D:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:156:in `require'
        from D:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:521:in `new_constants_in'
        from D:/ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:156:in `require'
        from D:/ruby/lib/ruby/gems/1.8/gems/rails-2.3.5/lib/commands/server.rb:84
        from D:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:36:in `gem_original_require'
        from D:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:36:in `require'
        from script/server:4

【问题讨论】：

标签： ruby ruby-on-rails-3 ruby-on-rails-3.1 rubygems

【解决方案1】：

其实你的 rake 版本是 0.9.2

而您的应用需要 0.8.7

所以首先通过这个命令卸载 rake 0.9.2

gem uninstall rake -v=0.9.2

然后通过这个命令安装 rake 0.8.7

gem install rake -v=0.8.7

希望您的问题能得到解决........

【讨论】：

【解决方案2】：

运行这些命令即可解决问题
第 1 步：安装 rake gem install rake -v '0.8.7'

第 2 步：安装捆绑器 gem install bundler

第 3 步：捆绑安装

它会解决问题..

【讨论】：

【解决方案3】：

即使我在使用 RubyMine 运行应用程序时也遇到了同样的问题。

我采取的步骤： 1）我在我的机器上安装了新的 Ruby。 2) 更改环境变量中 Ruby 的路径。 3) 使用以下步骤更改 RubyMine 中 Ruby 的路径：- a) 点击文件 -> 设置 -> Ruby SDK和Gems 4) 然后运行 bundle install

【讨论】：