Question

我遇到过的最难的错误 - 会很乐意帮助你！（还在学习和初学者）。

我之前尝试过在Heroku上部署，现在我的应用程序无法在Heroku和本地上运行。

尝试现在只修复当地情况。

我更改的其他内容是database.yml文件。它现在使用postgresql，但是在我的GemFile中我指定了sqlite3进行测试。

rails s
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rubygems.rb:777:in `report_activate_error': Could not find RubyGem rails (>= 0) (Gem::LoadError)
    from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rubygems.rb:211:in `activate'
    from /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/rubygems.rb:1056:in `gem'
    from /usr/bin/rails:18

我的Gemfile：

source 'https://rubygems.org'

#ruby '2.0.0'

gem 'rails', '3.2.3'

# Bundle edge Rails instead:
# gem 'rails', :git => 'git://github.com/rails/rails.git'

group :development, :test do
    gem 'sqlite3'
end

group :production do
    gem 'pg'
end


# Gems used only for assets and not required
# in production environments by default.
group :assets do
  gem 'sass-rails',   '~> 3.2.3'
  gem 'coffee-rails', '~> 3.2.1'

  # See https://github.com/sstephenson/execjs#readme for more supported runtimes
  # gem 'therubyracer', :platform => :ruby

  gem 'uglifier', '>= 1.0.3'
end

gem 'jquery-rails'

gem 'paperclip'

跑bundle install并收到以下消息（我是否必须从此消息中做任何事情？）：

根据您的ruby版本，您可能需要安装ruby rdoc / ri数据：

Your bundle is complete!
Use `bundle show [gemname]` to see where a bundled gem is installed.
Post-install message from rdoc:
<= 1.8.6 : unsupported
 = 1.8.7 : gem install rdoc-data; rdoc-data --install
 = 1.9.1 : gem install rdoc-data; rdoc-data --install
>= 1.9.2 : nothing to do! Yay!
Post-install message from paperclip:
##################################################
#  NOTE FOR UPGRADING FROM PRE-3.0 VERSION       #
##################################################

Paperclip 3.0 introduces a non-backward compatible change in your attachment
path. This will help to prevent attachment name clashes when you have
multiple attachments with the same name. If you didn't alter your
attachment's path and are using Paperclip's default, you'll have to add
`:path` and `:url` to your `has_attached_file` definition. For example:

    has_attached_file :avatar,
      :path => ":rails_root/public/system/:attachment/:id/:style/:filename",
      :url => "/system/:attachment/:id/:style/:filename"

Answer 1

而不是运行

rails s

运行

bundle exec rails s

确保您使用Gemfile中引用的gem而不是本地gem。

Rails服务器错误：“找不到RubyGem rails（＆gt; = 0）（Gem :: LoadError）”

1 个答案: