在MacOS10.6.8上安装Webistrano RAILS_ENV=production rake db:迁移失败

Question

我一直在尝试安装Webistrano。我已经安装了它所需的所有依赖项，包括Capistrano，如github wiki：https://github.com/peritor/webistrano/wiki/Installation中所述。我已经用谷歌搜索了这些错误消息，但没有找到任何有用的信息。

运行RAILS_ENV=production rake db:migrate时，我收到以下错误消息：

数独

webistrano username$ sudo RAILS_ENV=production rake db:migrate 
/Users/username/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/site_ruby/1.9.1/rubygems.rb:900:in `report_activate_error': Could not find RubyGem rake (>= 0) (Gem::LoadError)
    from /Users/username/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/site_ruby/1.9.1/rubygems.rb:248:in `activate'
    from /Users/username/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/site_ruby/1.9.1/rubygems.rb:1276:in `gem'
    from /Users/u sername/.rvm/gems/ruby-1.9.2-p180/bin/rake:18:in `<main>'

没有SUDO

webistrano username$ RAILS_ENV=production rake db:migrate 
rake/rdoctask is deprecated.  Use rdoc/task instead (in RDoc 2.4.2+)
rake aborted!
uninitialized constant MysqlCompat::MysqlRes

Tasks: TOP => db:migrate
(See full trace by running task with --trace)

谢谢。

Answer 1

这里已经多次提出并解决了MysqlRes问题。简单的答案是你需要reinstall the gem with custom settings。