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我正在運行ubuntu 12.04,並且在嘗試安裝時遇到以下錯誤。我該如何解決? 我怎麼得到紅寶石1.9.1? 這是我的Ubuntu上安裝Ruby寶石 - 如何使用版本安裝必需的軟件包。需要Ruby版本> = 1.9.1
sudo apt-get install ruby ruby-dev libopenssl-ruby rdoc ri irb build-essential wget ssl-cert
sudo apt-get -y install rubygems
sudo gem install knife-windows --include-dependencies
INFO: `gem install -y` is now default and will be removed
INFO: use --ignore-dependencies to install only the gems you list
ERROR: Error installing knife-windows:
gssapi requires Ruby version >= 1.9.1.