我一直在寻找这个问题的答案超过一天,并彻底搜索了StackOverflow.
我理解正在发生的冲突,我应该卸载我不需要的Rack版本,但这就是问题所在.我正在开发Koding(http://koding.com),我无法访问系统级宝石.
Rails之前正在工作,我安装了mongo gem,删除了它,并安装了mysql2 gem.
bash4.1$ rails
/usr/lib/ruby/site_ruby/1.8/rubygems.rb:233:in `activate': can't activate rack (~> 1.4.0, runtime) for ["actionpack-3.2.11", "railties-3.2.11"
], already activated rack-1.5.0 for ["rack-ssl-1.3.2", "railties-3.2.11"] (Gem::LoadError)
from /usr/lib/ruby/site_ruby/1.8/rubygems.rb:249:in `activate'
from /usr/lib/ruby/site_ruby/1.8/rubygems.rb:248:in `each'
from /usr/lib/ruby/site_ruby/1.8/rubygems.rb:248:in `activate'
from /usr/lib/ruby/site_ruby/1.8/rubygems.rb:249:in `activate'
from /usr/lib/ruby/site_ruby/1.8/rubygems.rb:248:in `each'
from /usr/lib/ruby/site_ruby/1.8/rubygems.rb:248:in `activate'
from /usr/lib/ruby/site_ruby/1.8/rubygems.rb:1082:in `
from /usr/bin/rails:18
我已经擦干了我的目录,尝试使用RVM,但仍然没有.有任何想法吗？
谢谢!