安装 webrick / mogrel 或任何其他 Rails 3 服务器时出现问题

Question

我尝试了各种从终端部署 WEBrick 和 mongrel 的安装方法。当我输入rails server命令时，我得到以下信息：

Toran1$ rails server
/Users/Toran1/.rvm/gems/ruby-1.9.2-head/gems/mysql2-0.3.2/lib/mysql2.rb:8:in `require': dlopen(/Users/Toran1/.rvm/gems/ruby-1.9.2-head/gems/mysql2-0.3.2/lib/mysql2/mysql2.bundle, 9): Library not loaded: libmysqlclient.18.dylib (LoadError)
  Referenced from: /Users/Toran1/.rvm/gems/ruby-1.9.2-head/gems/mysql2-0.3.2/lib/mysql2/mysql2.bundle
  Reason: image not found - /Users/Toran1/.rvm/gems/ruby-1.9.2-head/gems/mysql2-0.3.2/lib/mysql2/mysql2.bundle
    from /Users/Toran1/.rvm/gems/ruby-1.9.2-head/gems/mysql2-0.3.2/lib/mysql2.rb:8:in `<top (required)>'
    from /Users/Toran1/.rvm/gems/ruby-1.9.2-head/gems/bundler-1.0.13/lib/bundler/runtime.rb:68:in `require'
    from /Users/Toran1/.rvm/gems/ruby-1.9.2-head/gems/bundler-1.0.13/lib/bundler/runtime.rb:68:in `block (2 levels) in require'
    from /Users/Toran1/.rvm/gems/ruby-1.9.2-head/gems/bundler-1.0.13/lib/bundler/runtime.rb:66:in `each'
    from /Users/Toran1/.rvm/gems/ruby-1.9.2-head/gems/bundler-1.0.13/lib/bundler/runtime.rb:66:in `block in require'
    from /Users/Toran1/.rvm/gems/ruby-1.9.2-head/gems/bundler-1.0.13/lib/bundler/runtime.rb:55:in `each'
    from /Users/Toran1/.rvm/gems/ruby-1.9.2-head/gems/bundler-1.0.13/lib/bundler/runtime.rb:55:in `require'
    from /Users/Toran1/.rvm/gems/ruby-1.9.2-head/gems/bundler-1.0.13/lib/bundler.rb:120:in `require'
    from /Users/Toran1/Sites/simple_cms/config/application.rb:7:in `<top (required)>'
    from /Users/Toran1/.rvm/gems/ruby-1.9.2-head/gems/railties-3.0.7/lib/rails/commands.rb:28:in `require'
    from /Users/Toran1/.rvm/gems/ruby-1.9.2-head/gems/railties-3.0.7/lib/rails/commands.rb:28:in `block in <top (required)>'
    from /Users/Toran1/.rvm/gems/ruby-1.9.2-head/gems/railties-3.0.7/lib/rails/commands.rb:27:in `tap'
    from /Users/Toran1/.rvm/gems/ruby-1.9.2-head/gems/railties-3.0.7/lib/rails/commands.rb:27:in `<top (required)>'
    from script/rails:6:in `require'
    from script/rails:6:in `<main>'

我已经在本地和根级别安装了gem，并且在发出命令之前我还导航到了应用程序文件夹。任何帮助将不胜感激！

Answer 1

如果您以正确的方式安装 Rails，Webrick 将自动安装。

试试这个链接
这里

如果您不想再次安装rails，请尝试使用gem命令安装服务器

不要忘记将gems包含在Gemfile中并运行“bundle install”

Answer 2

如果您使用的是 Rails <需要使用3.1版本~> mysql2 gem 的 0.2.7

查看文档并搜索活动记录： https://github.com/brianmario/mysql2

我不确定这是否有助于直接解决这个问题，但它可能会解决您可能遇到的其他问题。

Answer 3

只需更新您的捆绑程序，也许任何一个较旧的 gem 与最新的 gem 冲突，就会出现此类问题。

gem install bundler

然后bundler install

如果再次发现错误，则删除 GEM.lock 文件，然后运行

bundler install

​​这可能会解决问题。