我刚刚在sudo gem install rails上安装了RoR 3。我尝试了很多次,但每次运行$ rails都会得到一个错误,我讨厌它:/Users/rsonic/.gem/ruby/1.8/bin/rails:19:in `load': no such file to load -- rails (LoadError)
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我在heroku上部署了一个ruby on rails应用程序,它崩溃了。这是我的日志文件:我已经更新了gems文件,使其包含了Ruby版本(2.2.4),在Rails4上。2016-05-11T19:31:46.127187+00:00 app[web.1]: from bin/rails:4:in `require'
2016-05-11T19:31:46.9626012016-05-11T19:31:46.127187+00:00 app