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我有这个旧的rails应用程序，直到最近工作正常。但现在，当我尝试使用Rails 3.1应用程序服务器启动错误
rails s
然后把它给错误的启动轨道服务器 -
/home/rtdp/.rvm/gems/[email protected]/gems/rack-1.3.4/lib/rack/backports/uri/common_192.rb:53: warning: already initialized constant WFKV_
/home/rtdp/.rvm/gems/[email protected]/gems/bundler-1.0.18/lib/bundler/runtime.rb:68:in `require': no such file to load -- false (LoadError)
from /home/rtdp/.rvm/gems/[email protected]/gems/bundler-1.0.18/lib/bundler/runtime.rb:68:in `block (2 levels) in require'
from /home/rtdp/.rvm/gems/[email protected]/gems/bundler-1.0.18/lib/bundler/runtime.rb:66:in `each'
from /home/rtdp/.rvm/gems/[email protected]/gems/bundler-1.0.18/lib/bundler/runtime.rb:66:in `block in require'
from /home/rtdp/.rvm/gems/[email protected]/gems/bundler-1.0.18/lib/bundler/runtime.rb:55:in `each'
from /home/rtdp/.rvm/gems/[email protected]/gems/bundler-1.0.18/lib/bundler/runtime.rb:55:in `require'
from /home/rtdp/.rvm/gems/[email protected]/gems/bundler-1.0.18/lib/bundler.rb:120:in `require'
from /home/rtdp/myapplication/config/application.rb:11:in `<top (required)>'
from /home/rtdp/.rvm/gems/[email protected]/gems/railties-3.1.1/lib/rails/commands.rb:52:in `require'
from /home/rtdp/.rvm/gems/[email protected]/gems/railties-3.1.1/lib/rails/commands.rb:52:in `block in <top (required)>'
from /home/rtdp/.rvm/gems/[email protected]/gems/railties-3.1.1/lib/rails/commands.rb:49:in `tap'
from /home/rtdp/.rvm/gems/[email protected]/gems/railties-3.1.1/lib/rails/commands.rb:49:in `<top (required)>'
from script/rails:6:in `require'
from script/rails:6:in `<main>'
什么可能导致这一点，我使用 红宝石 - 1.9.2p290 轨 - 3.1。 1个 捆绑 - 1.0.18
UPDATE：
我发现这个post。使用机架版本1.3.3修复了WFKV常数的警告。
看起来像你使用的是RVM。如果你制作一个全新的gemset并运行'bundle install'，它是否仍然会给你那个错误？ – jergason
我以前使用的是系统红宝石1.9.2，尝试安装新的rvm 1.9.2 ruby并为此创建了新的gemset，但仍然是错误。 – rtdp