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当我尝试从我的应用程序目录中使用 rails 命令时，我不断收到以下错误：

/Users/useraccount/.rvm/gems/ruby-2.4.0/gems/spring-2.0.2/lib/spring/client/rails.rb:28:in `load': no implicit conversion of nil into String (TypeError)

这就是我到达那里的方式...

安装和更新所有必要的软件后，我开始进行以下配置：

  • Mac OS Sierra 10.12.5
  • xcode 8.3.3
  • 导轨 5.1.1
  • ruby 2.4.1p111（2017-03-22 修订版 58053）[x86_64-darwin16] ruby​​ 2.4.0p0（2016-12-24 修订版 57164）[x86_64-darwin16]
  • 红宝石 2.6.12
  • 自制 1.2.3
  • Homebrew/homebrew-core（git 修订版 ab5ba7；最后一次提交 2017-06-19）

我进入我的项目文件夹并运行以下命令：

$ rails new testapp
...output omitted...
$ cd testapp
$ rails s

这就是我得到 TypeError 的地方。如果我运行rails -v它会给我同样的错误。

这是完整的跟踪：

/Users/useraccount/.rvm/gems/ruby-2.4.0/gems/spring-2.0.2/lib/spring/client/rails.rb:28:in `load': no implicit conversion of nil into String (TypeError)
    from /Users/useraccount/.rvm/gems/ruby-2.4.0/gems/spring-2.0.2/lib/spring/client/rails.rb:28:in `call'
    from /Users/useraccount/.rvm/gems/ruby-2.4.0/gems/spring-2.0.2/lib/spring/client/command.rb:7:in `call'
    from /Users/useraccount/.rvm/gems/ruby-2.4.0/gems/spring-2.0.2/lib/spring/client.rb:30:in `run'
    from /Users/useraccount/.rvm/gems/ruby-2.4.0/gems/spring-2.0.2/bin/spring:49:in `<top (required)>'
    from /Users/useraccount/.rvm/gems/ruby-2.4.0/gems/spring-2.0.2/lib/spring/binstub.rb:31:in `load'
    from /Users/useraccount/.rvm/gems/ruby-2.4.0/gems/spring-2.0.2/lib/spring/binstub.rb:31:in `<top (required)>'
    from /Users/useraccount/Google Drive Family/code/Rails/12-Week-Challenge/Week_0 [Dry Run]/testapp/bin/spring:15:in `require'
    from /Users/useraccount/Google Drive Family/code/Rails/12-Week-Challenge/Week_0 [Dry Run]/testapp/bin/spring:15:in `<top (required)>'
    from bin/rails:3:in `load'
    from bin/rails:3:in `<main>'

更新1：

我将 ruby​​ 从 2.4.0 升级到 2.4.1 并且完全相同的问题仍然存在。

/Users/brianjason/.rvm/gems/ruby-2.4.1/gems/spring-2.0.2/lib/spring/client/rails.rb:28:in `load': no implicit conversion of nil into String (TypeError)

更新 2：

当我在应用程序中注释掉spring时Gemfile没有错误：

group :development do
  # Access an IRB console on exception pages or by using <%= console %> anywhere in the code.
  gem 'web-console', '>= 3.3.0'
  gem 'listen', '>= 3.0.5', '< 3.2'
  # Spring speeds up development by keeping your application running in the background. Read more: https://github.com/rails/spring
  #gem 'spring'
  #gem 'spring-watcher-listen', '~> 2.0.0'
end

然后我尝试继续开发应用程序。我遵循了rails 入门指南第 4 节中概述的步骤

这是我尝试运行该应用程序时得到的结果：

ActionView::Template::Error (bad URI(is not URI?): file:///Users/useraccount/Google%20Drive%20Family/code/Rails/12-Week-Challenge/Week_0%20[Dry%20Run]/testapp/app/assets/stylesheets/application.css?type=text/css&pipeline=debug):
    4:     <title>Testapp</title>
    5:     <%= csrf_meta_tags %>
    6:
    7:     <%= stylesheet_link_tag    'application', media: 'all', 'data-turbolinks-track': 'reload' %>
    8:     <%= javascript_include_tag 'application', 'data-turbolinks-track': 'reload' %>
    9:   </head>
   10:

app/views/layouts/application.html.erb:7:in `_app_views_layouts_application_html_erb___42966888540102183_70217709639480'
4

1 回答 1

2

事实证明，问题是我的工作目录路径中的文件夹名称的结果。似乎文件夹名称中的空格导致了错误。

一旦我删除了空格并将文件夹名称更改为：

/Users/useraccount/Google Drive Family/code/Rails/12-Week-Challenge/Week_0 [Dry Run]/testapp/

至：

/Users/useraccount/Google_Drive_Family/code/Rails/12-Week-Challenge/Week_0_DryRun/testapp/

一切都很完美。问题解决了。

于 2017-06-23T00:56:10.540 回答