ios - 在 Nitrous.io 上修复 Rails 和服务器

Question

我在 Nitrous.io 上做 One Month Rails 教程。有一次，我的树上出现了一些奇怪的文件，我删除了它们。一切都停止了。

我跑了:

$ git add .
$ git checkout -f

并恢复了这棵树。

但是，当我跑的时候:

$ rails server

我得到:

action@first-project-48185:~/pinteresting$ rails server                                                                                                        
-bash: rails: command not found

我也试过:

$ ruby -v #and got an older version, so I reinstalled it
$ rails -v

action@first-project-48185:~/pinteresting$ rails -v                                                                                                            
-bash: rails: command not found

当我运行时:

$ ruby -v #on MAC terminal, I get the correct version
$ rails -v #on MAC terminal, I get the correct version

有趣的是，当我运行时:

$ rails server or $ rails server -p 4000

我得到:

Franciscos-MacBook-Pro:pinteresting franciscomello$ rails server
/Library/Ruby/Gems/2.0.0/gems/sqlite3-1.3.8/lib/sqlite3.rb:6:in `require': cannot load such file -- sqlite3/sqlite3_native (LoadError)

和下面的一堆其他文字:

from /Library/Ruby/Gems/2.0.0/gems/sqlite3-1.3.8/lib/sqlite3.rb:6:in `rescue in <top (required)>'
    from /Library/Ruby/Gems/2.0.0/gems/sqlite3-1.3.8/lib/sqlite3.rb:2:in `<top (required)>'
    from /Library/Ruby/Gems/2.0.0/gems/bundler-1.3.5/lib/bundler/runtime.rb:72:in `require'
    from /Library/Ruby/Gems/2.0.0/gems/bundler-1.3.5/lib/bundler/runtime.rb:72:in `block (2 levels) in require'
    from /Library/Ruby/Gems/2.0.0/gems/bundler-1.3.5/lib/bundler/runtime.rb:70:in `each'
    from /Library/Ruby/Gems/2.0.0/gems/bundler-1.3.5/lib/bundler/runtime.rb:70:in `block in require'
    from /Library/Ruby/Gems/2.0.0/gems/bundler-1.3.5/lib/bundler/runtime.rb:59:in `each'
    from /Library/Ruby/Gems/2.0.0/gems/bundler-1.3.5/lib/bundler/runtime.rb:59:in `require'
    from /Library/Ruby/Gems/2.0.0/gems/bundler-1.3.5/lib/bundler.rb:132:in `require'
    from /Users/franciscomello/Desktop/pinteresting/config/application.rb:7:in `<top (required)>'
    from /Library/Ruby/Gems/2.0.0/gems/railties-4.0.0/lib/rails/commands.rb:76:in `require'
    from /Library/Ruby/Gems/2.0.0/gems/railties-4.0.0/lib/rails/commands.rb:76:in `block in <top (required)>'
    from /Library/Ruby/Gems/2.0.0/gems/railties-4.0.0/lib/rails/commands.rb:73:in `tap'
    from /Library/Ruby/Gems/2.0.0/gems/railties-4.0.0/lib/rails/commands.rb:73:in `<top (required)>'
    from bin/rails:4:in `require'
    from bin/rails:4:in `<main>'
Franciscos-MacBook-Pro:pinteresting franciscomello$ rails server -p 4000
/Library/Ruby/Gems/2.0.0/gems/sqlite3-1.3.8/lib/sqlite3.rb:6:in `require': cannot load such file -- sqlite3/sqlite3_native (LoadError)
    from /Library/Ruby/Gems/2.0.0/gems/sqlite3-1.3.8/lib/sqlite3.rb:6:in `rescue in <top (required)>'
    from /Library/Ruby/Gems/2.0.0/gems/sqlite3-1.3.8/lib/sqlite3.rb:2:in `<top (required)>'
    from /Library/Ruby/Gems/2.0.0/gems/bundler-1.3.5/lib/bundler/runtime.rb:72:in `require'
    from /Library/Ruby/Gems/2.0.0/gems/bundler-1.3.5/lib/bundler/runtime.rb:72:in `block (2 levels) in require'
    from /Library/Ruby/Gems/2.0.0/gems/bundler-1.3.5/lib/bundler/runtime.rb:70:in `each'
    from /Library/Ruby/Gems/2.0.0/gems/bundler-1.3.5/lib/bundler/runtime.rb:70:in `block in require'
    from /Library/Ruby/Gems/2.0.0/gems/bundler-1.3.5/lib/bundler/runtime.rb:59:in `each'
    from /Library/Ruby/Gems/2.0.0/gems/bundler-1.3.5/lib/bundler/runtime.rb:59:in `require'
    from /Library/Ruby/Gems/2.0.0/gems/bundler-1.3.5/lib/bundler.rb:132:in `require'
    from /Users/franciscomello/Desktop/pinteresting/config/application.rb:7:in `<top (required)>'
    from /Library/Ruby/Gems/2.0.0/gems/railties-4.0.0/lib/rails/commands.rb:76:in `require'
    from /Library/Ruby/Gems/2.0.0/gems/railties-4.0.0/lib/rails/commands.rb:76:in `block in <top (required)>'
    from /Library/Ruby/Gems/2.0.0/gems/railties-4.0.0/lib/rails/commands.rb:73:in `tap'
    from /Library/Ruby/Gems/2.0.0/gems/railties-4.0.0/lib/rails/commands.rb:73:in `<top (required)>'
    from bin/rails:4:in `require'
    from bin/rails:4:in `<main>'

令人沮丧的是，我在没有任何错误或错误的情况下取得了最大的成功 :(

有什么想法吗？

Answer 1

我无法从这些错误中看出为什么 Rails 不再工作，但我建议重新安装 Rails。运行以下命令重新安装 Rails:

gem install rails

从这里您应该能够运行 rails server。

如果您的 Gemfile 包含其他需要安装的 gem，您也可以在项目目录中运行 bundle install。