rails 生成脚手架用户名：字符串电子邮件：字符串

Posted 2023-02-23

【中文标题】rails 生成脚手架用户名：字符串电子邮件：字符串

【英文标题】：rails generate scaffold User name:string email:string

【发布时间】：2015-11-02 23:37:18

【问题描述】：

在我必须编写的第 2.2 节中的 https://www.railstutorial.org/book/toy_app 教程中：$ rails generate scaffold User name:string email:string 时，我遇到了一些错误：

c:/RailsInstaller/Ruby2.1.0/lib/ruby/gems/2.1.0/gems/web-console-2.0.0.beta3/lib/web_console/slave.rb:1:in `require': cannot load such file -- pty (LoadError)
        from c:/RailsInstaller/Ruby2.1.0/lib/ruby/gems/2.1.0/gems/web-console-2.0.0.beta3/lib/web_console/slave.rb:1:in `<top (required)>'
        from c:/RailsInstaller/Ruby2.1.0/lib/ruby/gems/2.1.0/gems/web-console-2.0.0.beta3/lib/web_console.rb:13:in `require'
        from c:/RailsInstaller/Ruby2.1.0/lib/ruby/gems/2.1.0/gems/web-console-2.0.0.beta3/lib/web_console.rb:13:in `<top (required)>'
        from c:/RailsInstaller/Ruby2.1.0/lib/ruby/gems/2.1.0/gems/web-console-2.0.0.beta3/lib/web-console.rb:1:in `require'
        from c:/RailsInstaller/Ruby2.1.0/lib/ruby/gems/2.1.0/gems/web-console-2.0.0.beta3/lib/web-console.rb:1:in `<top (required)>'
        from c:/RailsInstaller/Ruby2.1.0/lib/ruby/gems/2.1.0/gems/bundler-1.10.6/lib/bundler/runtime.rb:76:in `require'
        from c:/RailsInstaller/Ruby2.1.0/lib/ruby/gems/2.1.0/gems/bundler-1.10.6/lib/bundler/runtime.rb:76:in `block (2 levels) in require'
        from c:/RailsInstaller/Ruby2.1.0/lib/ruby/gems/2.1.0/gems/bundler-1.10.6/lib/bundler/runtime.rb:72:in `each'
        from c:/RailsInstaller/Ruby2.1.0/lib/ruby/gems/2.1.0/gems/bundler-1.10.6/lib/bundler/runtime.rb:72:in `block in require'
        from c:/RailsInstaller/Ruby2.1.0/lib/ruby/gems/2.1.0/gems/bundler-1.10.6/lib/bundler/runtime.rb:61:in `each'
        from c:/RailsInstaller/Ruby2.1.0/lib/ruby/gems/2.1.0/gems/bundler-1.10.6/lib/bundler/runtime.rb:61:in `require'
        from c:/RailsInstaller/Ruby2.1.0/lib/ruby/gems/2.1.0/gems/bundler-1.10.6/lib/bundler.rb:134:in `require'
        from c:/Users/User/desktop/web/workspace/toy_app/config/application.rb:7:in `<top (required)>'
        from c:/RailsInstaller/Ruby2.1.0/lib/ruby/gems/2.1.0/gems/railties-4.2.2/lib/rails/commands/commands_tasks.rb:141:in `require'
        from c:/RailsInstaller/Ruby2.1.0/lib/ruby/gems/2.1.0/gems/railties-4.2.2/lib/rails/commands/commands_tasks.rb:141:in `require_application_and_environment!'
        from c:/RailsInstaller/Ruby2.1.0/lib/ruby/gems/2.1.0/gems/railties-4.2.2/lib/rails/commands/commands_tasks.rb:128:in `generate_or_destroy'
        from c:/RailsInstaller/Ruby2.1.0/lib/ruby/gems/2.1.0/gems/railties-4.2.2/lib/rails/commands/commands_tasks.rb:50:in `generate'
        from c:/RailsInstaller/Ruby2.1.0/lib/ruby/gems/2.1.0/gems/railties-4.2.2/lib/rails/commands/commands_tasks.rb:39:in `run_command!'
        from c:/RailsInstaller/Ruby2.1.0/lib/ruby/gems/2.1.0/gems/railties-4.2.2/lib/rails/commands.rb:17:in `<top (required)>'
        from bin/rails:4:in `require'
        from bin/rails:4:in `<main>'

有什么建议吗？一整天都在烦我

【参考方案1】：

问题是 Rails 4.2.0beta 及更高版本依赖于 pty gem，无法找到它。

`require': cannot load such file -- pty (LoadError)

这是因为此 gem 在 Windows 上尚不可用。对于临时修复，您可以从 Gemfile 中删除 web-console gem，并在删除该 gem 后运行 bundle install。