Peek失败，出现未初始化的常量错误

Question

peek gem为什么显示uninitialized constant Peek::Views::Mysql2 (NameError)。遵循文档https://github.com/peek/peek中的步骤。 Addedmount皮克:: Railtie => '/偷看'

root :to => 'home#show' 

宝石出现在当地的宝石以及

config/initializers/peek.rb:1:in `<top (required)>': uninitialized constant Peek::Views::Mysql2 (NameError) 
     from /home/pris/.rvm/gems/ruby-2.1.3@ybp/gems/railties-4.1.9/lib/rails/engine.rb:648:in `block in load_config_initializer' 
     from /home/pris/.rvm/gems/ruby-2.1.3@ybp/gems/activesupport-4.1.9/lib/active_support/notifications.rb:161:in `instrument' 
     from /home/pris/.rvm/gems/ruby-2.1.3@ybp/gems/railties-4.1.9/lib/rails/engine.rb:647:in `load_config_initializer' 
     from /home/pris/.rvm/gems/ruby-2.1.3@ybp/gems/railties-4.1.9/lib/rails/engine.rb:612:in `block (2 levels) in <class:Engine>' 
     from /home/pris/.rvm/gems/ruby-2.1.3@ybp/gems/railties-4.1.9/lib/rails/engine.rb:611:in `each' 
     from /home/pris/.rvm/gems/ruby-2.1.3@ybp/gems/railties-4.1.9/lib/rails/engine.rb:611:in `block in <class:Engine>' 
     from /home/pris/.rvm/gems/ruby-2.1.3@ybp/gems/railties-4.1.9/lib/rails/initializable.rb:30:in `instance_exec' 
     from /home/pris/.rvm/gems/ruby-2.1.3@ybp/gems/railties-4.1.9/lib/rails/initializable.rb:30:in `run' 
     from /home/pris/.rvm/gems/ruby-2.1.3@ybp/gems/railties-4.1.9/lib/rails/initializable.rb:55:in `block in run_initializers' 

Answer 1

添加peek-mysql2 gem以及在你的Gemfile。

对于config/initializers/peek.rb文件中的每个Peek.into ...语句，应该包含corresponding gem containing the view files。