未初始化的常量設計

我運行rake db:migrate時出現Uninitialized constant Devise錯誤。未初始化的常量設計

在Gemfile中：gem 'devise'成功bundle install。

我試着添加'require'devise''到config/application.rb但沒有成功。在配置/ application.rb中：

if defined?(Bundler) 
    Bundler.require(*Rails.groups(:assets => %w(development test))) 
end

堆棧跟蹤：

uninitialized constant Devise 
/Users/cs/.Trash/qa/config/initializers/devise.rb:3:in `<top (required)>' 
/Users/cs/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.2.9/lib/rails/engine.rb:588:in `block (2 levels) in <class:Engine>' 
/Users/cs/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.2.9/lib/rails/engine.rb:587:in `each' 
/Users/cs/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.2.9/lib/rails/engine.rb:587:in `block in <class:Engine>' 
/Users/cs/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.2.9/lib/rails/initializable.rb:30:in `instance_exec' 
/Users/cs/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.2.9/lib/rails/initializable.rb:30:in `run' 
/Users/cs/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.2.9/lib/rails/initializable.rb:55:in `block in run_initializers' 
/Users/cs/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.2.9/lib/rails/initializable.rb:54:in `each' 
/Users/cs/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.2.9/lib/rails/initializable.rb:54:in `run_initializers' 
/Users/cs/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.2.9/lib/rails/application.rb:136:in `initialize!' 
/Users/cs/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.2.9/lib/rails/railtie/configurable.rb:30:in `method_missing' 
/Users/cs/.Trash/qa/config/environment.rb:5:in `<top (required)>' 
/Users/cs/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.2.9/lib/rails/application.rb:103:in `require_environment!' 
/Users/cs/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.2.9/lib/rails/application.rb:297:in `block (2 levels) in initialize_tasks' 
Tasks: TOP => routes => environment 
(See full trace by running task with --trace)

的Gemfile：

source 'https://rubygems.org' 

gem 'rails', '3.2.9' 

## JRUBY GEMS 
gem 'activerecord-jdbc-adapter' 
gem 'activerecord-jdbcpostgresql-adapter' 
gem 'jdbc-postgres' 
gem 'jruby-openssl' 

## FRONT END/DESIGN GEMS 
gem 'jquery-rails' 
gem 'bootstrap-sass' 
gem 'haml' 
gem 'font-awesome-sass-rails' 

## ADMINISTRATION 
gem 'activeadmin' 
gem 'rufus-scheduler' 

## AUTHENTICATION 
gem 'bcrypt-ruby' 
gem 'devise' 

## FILE UPLOADS 
gem 'paperclip' 
gem 'aws-sdk' 

## PERFORMANCE 
gem 'dalli' 
gem "trinidad" 

## TESTING 
gem "seedbank" 

# 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' 
    gem 'therubyrhino' 
    gem 'uglifier', '>= 1.0.3' 
    gem 'closure-compiler' 
end

來源

2012-12-11 sscirrus

顯示你的'Gemfile' – deefour

@Deefour - 我剛剛添加了Gemfile。 – sscirrus

只是出於好奇：你是否意識到初始化程序似乎是垃圾？ - '/ Users/cs/.Trash/...' – polarblau

有點晚，但我有同樣的問題。清理垃圾並重新啓動外殼應該是解決方案。

當您將某些文件夾移入垃圾箱時，終端設備中存在一個錯誤，該垃圾箱哪裏引用錯誤。

來源

2015-05-07 07:02:42 schlenger

未初始化的常量設計

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