VMPlayer 中 Ubuntu 64 上的 Ruby on Rails 3 教程

Question

我正在学习 Ruby on Rails 3 教程的第 1 章，当我尝试使用 Git 时，我第一次遇到了麻烦，但那是因为我没有创建 SSH 密钥。我已经完成了这项工作，但接下来却陷入了尝试向 Heroku 添加密钥的过程中。我认为它应该能够使用相同的键进行保存。这就是我得到的结果，我无法弄清楚错误告诉我什么。我对 Ruby 和 Rails 完全陌生。

    bill44077@ubuntu:~/Sites/rails_projects/first_app$ heroku keys:add
<internal:lib/rubygems/custom_require>:29:in `require': no such file to load -- readline (LoadError)
    from <internal:lib/rubygems/custom_require>:29:in `require'
    from /home/bill44077/.rvm/gems/ruby-1.9.2-p136@rails3tutorial/gems/heroku-1.17.10/lib/heroku/commands/app.rb:1:in `<top (required)>'
    from <internal:lib/rubygems/custom_require>:29:in `require'
    from <internal:lib/rubygems/custom_require>:29:in `require'
    from /home/bill44077/.rvm/gems/ruby-1.9.2-p136@rails3tutorial/gems/heroku-1.17.10/lib/heroku/command.rb:5:in `block in <top (required)>'
    from /home/bill44077/.rvm/gems/ruby-1.9.2-p136@rails3tutorial/gems/heroku-1.17.10/lib/heroku/command.rb:5:in `each'
    from /home/bill44077/.rvm/gems/ruby-1.9.2-p136@rails3tutorial/gems/heroku-1.17.10/lib/heroku/command.rb:5:in `<top (required)>'
    from <internal:lib/rubygems/custom_require>:29:in `require'
    from <internal:lib/rubygems/custom_require>:29:in `require'
    from /home/bill44077/.rvm/gems/ruby-1.9.2-p136@rails3tutorial/gems/heroku-1.17.10/bin/heroku:7:in `<top (required)>'
    from /home/bill44077/.rvm/gems/ruby-1.9.2-p136@rails3tutorial/bin/heroku:19:in `load'
    from /home/bill44077/.rvm/gems/ruby-1.9.2-p136@rails3tutorial/bin/heroku:19:in `<main>'
bill44077@ubuntu:~/Sites/rails_projects/first_app$ heroku keys:add
<internal:lib/rubygems/custom_require>:29:in `require': no such file to load -- readline (LoadError)
    from <internal:lib/rubygems/custom_require>:29:in `require'
    from /home/bill44077/.rvm/gems/ruby-1.9.2-p136@rails3tutorial/gems/heroku-1.17.10/lib/heroku/commands/app.rb:1:in `<top (required)>'
    from <internal:lib/rubygems/custom_require>:29:in `require'
    from <internal:lib/rubygems/custom_require>:29:in `require'
    from /home/bill44077/.rvm/gems/ruby-1.9.2-p136@rails3tutorial/gems/heroku-1.17.10/lib/heroku/command.rb:5:in `block in <top (required)>'
    from /home/bill44077/.rvm/gems/ruby-1.9.2-p136@rails3tutorial/gems/heroku-1.17.10/lib/heroku/command.rb:5:in `each'
    from /home/bill44077/.rvm/gems/ruby-1.9.2-p136@rails3tutorial/gems/heroku-1.17.10/lib/heroku/command.rb:5:in `<top (required)>'
    from <internal:lib/rubygems/custom_require>:29:in `require'
    from <internal:lib/rubygems/custom_require>:29:in `require'
    from /home/bill44077/.rvm/gems/ruby-1.9.2-p136@rails3tutorial/gems/heroku-1.17.10/bin/heroku:7:in `<top (required)>'
    from /home/bill44077/.rvm/gems/ruby-1.9.2-p136@rails3tutorial/bin/heroku:19:in `load'
    from /home/bill44077/.rvm/gems/ruby-1.9.2-p136@rails3tutorial/bin/heroku:19:in `<main>'

抱歉 - 我不知道如何将其放入换行符中。

感谢您的帮助！ 比尔44077

Answer 1

看来您的 ruby​​ 尚未使用 readline 进行编译并查看您的 ruby​​ 路径...您正在使用 RVM。
查看此文档：

http://rvm.beginrescueend.com/packages/readline/

基本上您需要使用 readline (--with-readline-dir) 重新安装 ruby​​。
在安装 ruby​​ 之前不要忘记查看其他 rvm 选项，这样如果您需要 iconv、zlib 或 X，则不必再次重新安装它。

顺便说一句，如果你没有 readline，你的 Rails 控制台应该无法工作，并且你正在部署过程中，所以我想说......你应该更频繁地使用你的 Rails 控制台:-)

享受吧！