生成不生成代码

我试图给出一个生成任何，它不会，这个错误出现，有时没有出现，它会一直运行，并没有出现。到底是怎么回事？我是这个领域的新手。生成不生成代码

[email protected]:~/Projeto/Projeto_testes/teste_projeto_generator# rails g scaffold User name email 
/usr/lib/ruby/vendor_ruby/active_support/core_ext/numeric/conversions.rb:121: warning: constant ::Fixnum is deprecated 
/usr/lib/ruby/vendor_ruby/active_support/core_ext/numeric/conversions.rb:121: warning: constant ::Bignum is deprecated 
[email protected]:~/Projeto/Projeto_testes/teste_projeto_generator#

来源

2017-06-29 Elis Bresciani

'rails g scaffold用户名电子邮件'适用于我。然而，这个警告意味着你正在运行带有旧版Rails的Ruby的最新版本。升级Rails（或降级Ruby）可以解决这个问题。 – Stefan

我该怎么做？我已经尝试过原始文档，但我不知道该怎么做......我不明白该怎么做。 –

我认为值得让Rbenv（我使用这个）或rvm（我在MacOSX上遇到了几个与rvm相关的问题），以便管理你的ruby的东西。它们允许下载和安装ruby版本，为某些项目设置“全局”ruby版本和gem set，和/或本地ruby版本以及所需的gemset。我发现它安装和使用非常紧张。 –

我没有永久解决它，但我找到了一个解决方案来规避错误。当我给一个新的轨道，它生成的宝石文件中，将指定的轨道版本，我只是改变了产生的Gemfile，我“创造”的一个：

source 'https://rubygems.org' 

gem 'openssl', '2.0.4' 

# Bundle edge Rails instead: gem 'rails', github: 'rails/rails' 
gem 'rails', github: 'rails/rails', branch: '4-2-stable' 
# Use sqlite3 as the database for Active Record 
gem 'sqlite3' 
# Use SCSS for stylesheets 
gem 'sass-rails', '~> 5.0' 
# Use Uglifier as compressor for JavaScript assets 
gem 'uglifier', '>= 1.3.0' 
# Use CoffeeScript for .coffee assets and views 
gem 'coffee-rails', '~> 4.1.0' 
# See https://github.com/rails/execjs#readme for more supported runtimes 
# gem 'therubyracer', platforms: :ruby 
gem 'rails-i18n', '~> 4.0.0' 
# Use jquery as the JavaScript library 
gem 'jquery-rails' 
# Turbolinks makes following links in your web application faster. Read more: https://github.com/rails/turbolinks 
gem 'turbolinks' 
# Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder 
gem 'jbuilder', '~> 2.0' 
# bundle exec rake doc:rails generates the API under doc/api. 
gem 'sdoc', '~> 0.4.0', group: :doc 

# Use ActiveModel has_secure_password 
# gem 'bcrypt', '~> 3.1.7' 

# Use Unicorn as the app server 
# gem 'unicorn' 

# Use Capistrano for deployment 
# gem 'capistrano-rails', group: :development 

group :development, :test do 
    # Call 'byebug' anywhere in the code to stop execution and get a debugger console 
    gem 'byebug' 
end 

group :development do 
    # Access an IRB console on exception pages or by using <%= console %> in views 
    gem 'web-console', '~> 2.0' 

    # Spring speeds up development by keeping your application running in the background. Read more: https://github.com/rails/spring 
    gem 'spring' 
end

我不能使用rbenv也不rvm升级我的导轨，所以我做这个“调整”。

来源

2017-07-11 11:44:12

生成不生成代码

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