Ruby on rails 设计生成视图

我将学习本教程：

我在以下方面遇到了问题：

rails g devise:views

&

两者都会出现类似的错误：

/home/zach/.rvm/gems/ruby-2.1.2/gems/activerecord-4.1.4/lib/active_record/dynamic_matchers.rb:26:in `method_missing': undefined method `attr_accessible' for User (call 'User.connection' to establish a connection):Class (NoMethodError)
    from /home/zach/HandCoOp/project/HandCo-op/app/models/user.rb:8:in `<class:User>'
    from /home/zach/HandCoOp/project/HandCo-op/app/models/user.rb:1:in `<top (required)>'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:443:in `load'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:443:in `block in load_file'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:633:in `new_constants_in'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:442:in `load_file'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:342:in `require_or_load'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:480:in `load_missing_constant'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:180:in `const_missing'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active_support/inflector/methods.rb:238:in `const_get'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active_support/inflector/methods.rb:238:in `block in constantize'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active_support/inflector/methods.rb:236:in `each'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active_support/inflector/methods.rb:236:in `inject'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active_support/inflector/methods.rb:236:in `constantize'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:552:in `get'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:583:in `constantize'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/devise-1.4.7/lib/devise.rb:259:in `get'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/devise-1.4.7/lib/devise/mapping.rb:103:in `to'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/devise-1.4.7/lib/devise/mapping.rb:98:in `modules'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/devise-1.4.7/lib/devise/mapping.rb:115:in `routes'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/devise-1.4.7/lib/devise/mapping.rb:84:in `initialize'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/devise-1.4.7/lib/devise.rb:289:in `new'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/devise-1.4.7/lib/devise.rb:289:in `add_mapping'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/devise-1.4.7/lib/devise/rails/routes.rb:190:in `block in devise_for'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/devise-1.4.7/lib/devise/rails/routes.rb:189:in `each'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/devise-1.4.7/lib/devise/rails/routes.rb:189:in `devise_for'
    from /home/zach/HandCoOp/project/HandCo-op/config/routes.rb:2:in `block in <top (required)>'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/actionpack-4.1.4/lib/action_dispatch/routing/route_set.rb:337:in `instance_exec'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/actionpack-4.1.4/lib/action_dispatch/routing/route_set.rb:337:in `eval_block'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/actionpack-4.1.4/lib/action_dispatch/routing/route_set.rb:315:in `draw'
    from /home/zach/HandCoOp/project/HandCo-op/config/routes.rb:1:in `<top (required)>'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:241:in `load'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:241:in `block in load'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:232:in `load_dependency'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:241:in `load'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/railties-4.1.4/lib/rails/application/routes_reloader.rb:40:in `block in load_paths'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/railties-4.1.4/lib/rails/application/routes_reloader.rb:40:in `each'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/railties-4.1.4/lib/rails/application/routes_reloader.rb:40:in `load_paths'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/railties-4.1.4/lib/rails/application/routes_reloader.rb:16:in `reload!'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/railties-4.1.4/lib/rails/application/routes_reloader.rb:26:in `block in updater'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active_support/file_update_checker.rb:75:in `call'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active_support/file_update_checker.rb:75:in `execute'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/railties-4.1.4/lib/rails/application/routes_reloader.rb:27:in `updater'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/railties-4.1.4/lib/rails/application/routes_reloader.rb:7:in `execute_if_updated'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/railties-4.1.4/lib/rails/application/finisher.rb:71:in `block in <module:Finisher>'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/railties-4.1.4/lib/rails/initializable.rb:30:in `instance_exec'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/railties-4.1.4/lib/rails/initializable.rb:30:in `run'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/railties-4.1.4/lib/rails/initializable.rb:55:in `block in run_initializers'
    from /home/zach/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/tsort.rb:226:in `block in tsort_each'
    from /home/zach/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/tsort.rb:348:in `block (2 levels) in each_strongly_connected_component'
    from /home/zach/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/tsort.rb:427:in `each_strongly_connected_component_from'
    from /home/zach/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/tsort.rb:347:in `block in each_strongly_connected_component'
    from /home/zach/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/tsort.rb:345:in `each'
    from /home/zach/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/tsort.rb:345:in `call'
    from /home/zach/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/tsort.rb:345:in `each_strongly_connected_component'
    from /home/zach/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/tsort.rb:224:in `tsort_each'
    from /home/zach/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/tsort.rb:205:in `tsort_each'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/railties-4.1.4/lib/rails/initializable.rb:54:in `run_initializers'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/railties-4.1.4/lib/rails/application.rb:300:in `initialize!'
    from /home/zach/HandCoOp/project/HandCo-op/config/environment.rb:5:in `<top (required)>'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:247:in `require'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:247:in `block in require'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:232:in `load_dependency'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:247:in `require'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/railties-4.1.4/lib/rails/application.rb:276:in `require_environment!'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/railties-4.1.4/lib/rails/commands/commands_tasks.rb:147:in `require_application_and_environment!'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/railties-4.1.4/lib/rails/commands/commands_tasks.rb:133:in `generate_or_destroy'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/railties-4.1.4/lib/rails/commands/commands_tasks.rb:51:in `generate'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/railties-4.1.4/lib/rails/commands/commands_tasks.rb:40:in `run_command!'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/railties-4.1.4/lib/rails/commands.rb:17:in `<top (required)>'
    from bin/rails:4:in `require'
    from bin/rails:4:in `<main>'

/home/zach/.rvm/gems/ruby-2.1.2/gems/activerecord-4.1.4/lib/active\u record/dynamic\u matchers.rb:26:in'method\u missing'：用户未定义的方法'attr\u accessible'（调用'User.connection'建立连接）：类（nomethodorderror）
from/home/zach/HandCoOp/project/HandCo-op/app/models/user.rb:8:in`'
from/home/zach/HandCoOp/project/HandCo-op/app/models/user.rb:1:in`'
from/home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active\u support/dependencies.rb:443:in'load'
from/home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active\u support/dependencies.rb:443:in`block in load\u file'
from/home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active\u support/dependencies.rb:633:in'new\u constants\u in'
来自/home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active\u support/dependencies.rb:442:“加载文件”中
from/home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active\u support/dependencies.rb:342:in“require\u或\u load”
from/home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active\u support/dependencies.rb:480:in'load\u missing\u constant'
from/home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active\u support/dependencies.rb:180:in'const\u missing'
from/home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active\u-support/endoctor/methods.rb:238:in'const\u-get'
from/home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active\u support/endoctor/methods.rb:238:in `块在constantize'
from/home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active\u-support/endoctor/methods.rb:236:in'each'
from/home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active\u-support/endoctor/methods.rb:236:in'inject'
from/home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active\u-support/endoctor/methods.rb:236:in'constantize'
from/home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active\u support/dependencies.rb:552:in'get'
from/home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active\u support/dependencies.rb:583:in“constantize”
from/home/zach/.rvm/gems/ruby-2.1.2/gems/designe-1.4.7/lib/designe.rb:259:in'get'
from/home/zach/.rvm/gems/ruby-2.1.2/gems/designe-1.4.7/lib/designe/mapping.rb:103:in'to'
from/home/zach/.rvm/gems/ruby-2.1.2/gems/designe-1.4.7/lib/designe/mapping.rb:98:in `模块'
from/home/zach/.rvm/gems/ruby-2.1.2/gems/designe-1.4.7/lib/designe/mapping.rb:115:in“routes”
from/home/zach/.rvm/gems/ruby-2.1.2/gems/designe-1.4.7/lib/designe/mapping.rb:84:in'initialize'
from/home/zach/.rvm/gems/ruby-2.1.2/gems/designe-1.4.7/lib/designe.rb:289:in'new'
from/home/zach/.rvm/gems/ruby-2.1.2/gems/designe-1.4.7/lib/designe.rb:289:in“添加映射”
from/home/zach/.rvm/gems/ruby-2.1.2/gems/designe-1.4.7/lib/designe/rails/routes.rb:190:in `设计中的块'
from/home/zach/.rvm/gems/ruby-2.1.2/gems/designe-1.4.7/lib/designe/rails/routes.rb:189:in“each”
from/home/zach/.rvm/gems/ruby-2.1.2/gems/designe-1.4.7/lib/designe/rails/routes.rb:189:in“designe_for”
from/home/zach/HandCoOp/project/HandCo op/config/routes.rb:2:in'block in'
from/home/zach/.rvm/gems/ruby-2.1.2/gems/actionpack-4.1.4/lib/action\u dispatch/routing/route\u set.rb:337:in'instance\u exec'
from/home/zach/.rvm/gems/ruby-2.1.2/gems/actionpack-4.1.4/lib/action\u dispatch/routing/route\u set.rb:337:in'eval_block'
from/home/zach/.rvm/gems/ruby-2.1.2/gems/actionpack-4.1.4/lib/action\u dispatch/routing/route\u set.rb:315:in'draw'
from/home/zach/HandCoOp/project/HandCo-op/config/routes.rb:1:in`'
from/home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active\u support/dependencies.rb:241:in'load'
from/home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active\u support/dependencies.rb:241:在“加载中的块”中
from/home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active\u support/dependencies.rb:232:in'load\u dependency'
from/home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active\u support/dependencies.rb:241:in'load'
from/home/zach/.rvm/gems/ruby-2.1.2/gems/railties-4.1.4/lib/rails/application/routes\u reloader.rb:40:在“加载路径中的块”中
from/home/zach/.rvm/gems/ruby-2.1.2/gems/railties-4.1.4/lib/rails/application/routes\u reloader.rb:40:in‘each’中
from/home/zach/.rvm/gems/ruby-2.1.2/gems/railties-4.1.4/lib/rails/application/routes\u reloader.rb:40:在“加载路径”中
from/home/zach/.rvm/gems/ruby-2.1.2/gems/railties-4.1.4/lib/rails/application/routes\u reloader.rb:16:in“reload！”
from/home/zach/.rvm/gems/ruby-2.1.2/gems/railties-4.1.4/lib/rails/application/routes\u reloader.rb:26:in“block in updater”
from/home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active\u support/file\u update\u checker.rb:75:in'call'
from/home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active\u support/file\u update\u checker.rb:75:在“执行”中
from/home/zach/.rvm/gems/ruby-2.1.2/gems/railties-4.1.4/lib/rails/application/routes\u reloader.rb:27:in'updater'
from/home/zach/.rvm/gems/ruby-2.1.2/gems/railties-4.1.4/lib/rails/application/routes\u reloader.rb:7:in'execute\u if\u updated'
from/home/zach/.rvm/gems/ruby-2.1.2/gems/railties-4.1.4/lib/rails/application/finisher.rb:71:in'block in'
from/home/zach/.rvm/gems/ruby-2.1.2/gems/railties-4.1.4/lib/rails/initializable.rb:30:in'instance_exec'
from/home/zach/.rvm/gems/ruby-2.1.2/gems/railties-4.1.4/lib/rails/initializable.rb:30:in'run'
from/home/zach/.rvm/gems/ruby-2.1.2/gems/railties-4.1.4/lib/rails/initializable.rb:55:“运行中的块初始化器”
from/home/zach/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/tsort.rb:226:in`block in tsort_each'
from/home/zach/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/tsort.rb:348:in`block（2层）
/home/zach/.rvm/gems/ruby-2.1.2/gems/activerecord-4.1.4/lib/active_record/dynamic_matchers.rb:26:in `method_missing': undefined method `attr_accessible' for User (call 'User.connection' to establish a connection):Class (NoMethodError)
    from /home/zach/HandCoOp/project/HandCo-op/app/models/user.rb:8:in `<class:User>'
    from /home/zach/HandCoOp/project/HandCo-op/app/models/user.rb:1:in `<top (required)>'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:443:in `load'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:443:in `block in load_file'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:633:in `new_constants_in'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:442:in `load_file'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:342:in `require_or_load'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:480:in `load_missing_constant'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:180:in `const_missing'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active_support/inflector/methods.rb:238:in `const_get'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active_support/inflector/methods.rb:238:in `block in constantize'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active_support/inflector/methods.rb:236:in `each'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active_support/inflector/methods.rb:236:in `inject'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active_support/inflector/methods.rb:236:in `constantize'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:552:in `get'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:583:in `constantize'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/devise-1.4.7/lib/devise.rb:259:in `get'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/devise-1.4.7/lib/devise/mapping.rb:103:in `to'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/devise-1.4.7/lib/devise/mapping.rb:98:in `modules'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/devise-1.4.7/lib/devise/mapping.rb:115:in `routes'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/devise-1.4.7/lib/devise/mapping.rb:84:in `initialize'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/devise-1.4.7/lib/devise.rb:289:in `new'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/devise-1.4.7/lib/devise.rb:289:in `add_mapping'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/devise-1.4.7/lib/devise/rails/routes.rb:190:in `block in devise_for'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/devise-1.4.7/lib/devise/rails/routes.rb:189:in `each'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/devise-1.4.7/lib/devise/rails/routes.rb:189:in `devise_for'
    from /home/zach/HandCoOp/project/HandCo-op/config/routes.rb:2:in `block in <top (required)>'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/actionpack-4.1.4/lib/action_dispatch/routing/route_set.rb:337:in `instance_exec'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/actionpack-4.1.4/lib/action_dispatch/routing/route_set.rb:337:in `eval_block'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/actionpack-4.1.4/lib/action_dispatch/routing/route_set.rb:315:in `draw'
    from /home/zach/HandCoOp/project/HandCo-op/config/routes.rb:1:in `<top (required)>'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:241:in `load'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:241:in `block in load'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:232:in `load_dependency'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:241:in `load'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/railties-4.1.4/lib/rails/application/routes_reloader.rb:40:in `block in load_paths'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/railties-4.1.4/lib/rails/application/routes_reloader.rb:40:in `each'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/railties-4.1.4/lib/rails/application/routes_reloader.rb:40:in `load_paths'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/railties-4.1.4/lib/rails/application/routes_reloader.rb:16:in `reload!'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/railties-4.1.4/lib/rails/application/routes_reloader.rb:26:in `block in updater'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active_support/file_update_checker.rb:75:in `call'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active_support/file_update_checker.rb:75:in `execute'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/railties-4.1.4/lib/rails/application/routes_reloader.rb:27:in `updater'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/railties-4.1.4/lib/rails/application/routes_reloader.rb:7:in `execute_if_updated'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/railties-4.1.4/lib/rails/application/finisher.rb:71:in `block in <module:Finisher>'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/railties-4.1.4/lib/rails/initializable.rb:30:in `instance_exec'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/railties-4.1.4/lib/rails/initializable.rb:30:in `run'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/railties-4.1.4/lib/rails/initializable.rb:55:in `block in run_initializers'
    from /home/zach/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/tsort.rb:226:in `block in tsort_each'
    from /home/zach/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/tsort.rb:348:in `block (2 levels) in each_strongly_connected_component'
    from /home/zach/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/tsort.rb:427:in `each_strongly_connected_component_from'
    from /home/zach/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/tsort.rb:347:in `block in each_strongly_connected_component'
    from /home/zach/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/tsort.rb:345:in `each'
    from /home/zach/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/tsort.rb:345:in `call'
    from /home/zach/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/tsort.rb:345:in `each_strongly_connected_component'
    from /home/zach/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/tsort.rb:224:in `tsort_each'
    from /home/zach/.rvm/rubies/ruby-2.1.2/lib/ruby/2.1.0/tsort.rb:205:in `tsort_each'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/railties-4.1.4/lib/rails/initializable.rb:54:in `run_initializers'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/railties-4.1.4/lib/rails/application.rb:300:in `initialize!'
    from /home/zach/HandCoOp/project/HandCo-op/config/environment.rb:5:in `<top (required)>'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:247:in `require'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:247:in `block in require'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:232:in `load_dependency'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/activesupport-4.1.4/lib/active_support/dependencies.rb:247:in `require'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/railties-4.1.4/lib/rails/application.rb:276:in `require_environment!'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/railties-4.1.4/lib/rails/commands/commands_tasks.rb:147:in `require_application_and_environment!'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/railties-4.1.4/lib/rails/commands/commands_tasks.rb:133:in `generate_or_destroy'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/railties-4.1.4/lib/rails/commands/commands_tasks.rb:51:in `generate'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/railties-4.1.4/lib/rails/commands/commands_tasks.rb:40:in `run_command!'
    from /home/zach/.rvm/gems/ruby-2.1.2/gems/railties-4.1.4/lib/rails/commands.rb:17:in `<top (required)>'
    from bin/rails:4:in `require'
    from bin/rails:4:in `<main>'

Rails.application.routes.draw do
  devise_for :users


 root 'home#index'



user.rb model:

class User < ActiveRecord::Base
  # :token_authenticatable, :encryptable, :confirmable, :lockable, :timeoutable and :omniauthable
  devise :database_authenticatable, :registerable,
         :recoverable, :rememberable, :trackable, :validatable

  # Setup accessible (or protected) attributes for your model
   :email
   :password
   :password_confirmation
   :remember_me
end