`require':没有要加载的文件
问题: I was trying to install rails on Ubuntu Natty Narwhal 11.04, using ruby1.9.1. 我试图使用ruby1.9.1在Ubuntu Natty Narwhal 11.04上安装rails。 I installed ruby using apt-get install ruby1.9.1-full which contains the dev package. 我使用 apt-get install ruby1.9.1-full 安装了ruby,其中包含dev包。 I googled the error and all have suggested I install the 1.9.1-dev which I already have. 我用Google搜索了错误,所有人都建议我安装我已经拥有的1.9.1-dev。 Building native extensions. This could take a while... ERROR: Error installing rails: ERROR: Failed to build gem native extension. /usr/bin/ruby1.8 extconf.rb extconf.rb:36:in `require': no such file