安装RVM并更新ruby后，RSpec停止工作

我正试图让rspec重新开始工作。当我去测试任何东西时，我得到以下信息：

stacyrandel$ bundle exec rspec spec/requests/static_pages_spec.rb
/Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/activesupport-3.2.8/lib/active_support/dependencies.rb:251:in `require': /Users/stacyrandel/rails_projects/callred/app/models/user.rb:21: syntax error, unexpected ':', expecting keyword_end (SyntaxError)
    uniqueness: { case_sensitive: false }
               ^
    from /Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/activesupport-3.2.8/lib/active_support/dependencies.rb:251:in `block in require'
    from /Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/activesupport-3.2.8/lib/active_support/dependencies.rb:236:in `load_dependency'
    from /Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/activesupport-3.2.8/lib/active_support/dependencies.rb:251:in `require'
    from /Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/activesupport-3.2.8/lib/active_support/dependencies.rb:359:in `require_or_load'
    from /Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/activesupport-3.2.8/lib/active_support/dependencies.rb:502:in `load_missing_constant'
    from /Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/activesupport-3.2.8/lib/active_support/dependencies.rb:192:in `block in const_missing'
    from /Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/activesupport-3.2.8/lib/active_support/dependencies.rb:190:in `each'
    from /Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/activesupport-3.2.8/lib/active_support/dependencies.rb:190:in `const_missing'
    from /Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/activesupport-3.2.8/lib/active_support/inflector/methods.rb:230:in `block in constantize'
    from /Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/activesupport-3.2.8/lib/active_support/inflector/methods.rb:229:in `each'
    from /Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/activesupport-3.2.8/lib/active_support/inflector/methods.rb:229:in `constantize'
    from /Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/activesupport-3.2.8/lib/active_support/inflector/methods.rb:260:in `safe_constantize'
    from /Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/activesupport-3.2.8/lib/active_support/core_ext/string/inflections.rb:66:in `safe_constantize'
    from /Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/actionpack-3.2.8/lib/action_controller/metal/params_wrapper.rb:152:in `_default_wrap_model'
    from /Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/actionpack-3.2.8/lib/action_controller/metal/params_wrapper.rb:169:in `_set_wrapper_defaults'
    from /Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/actionpack-3.2.8/lib/action_controller/metal/params_wrapper.rb:133:in `inherited'
    from /Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/actionpack-3.2.8/lib/abstract_controller/railties/routes_helpers.rb:7:in `block (2 levels) in with'
    from /Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/actionpack-3.2.8/lib/action_controller/railties/paths.rb:7:in `block (2 levels) in with'
    from /Users/stacyrandel/rails_projects/callred/app/controllers/users_controller.rb:1:in `<top (required)>'
    from /Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/activesupport-3.2.8/lib/active_support/dependencies.rb:251:in `require'
    from /Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/activesupport-3.2.8/lib/active_support/dependencies.rb:251:in `block in require'
    from /Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/activesupport-3.2.8/lib/active_support/dependencies.rb:236:in `load_dependency'
    from /Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/activesupport-3.2.8/lib/active_support/dependencies.rb:251:in `require'
    from /Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/activesupport-3.2.8/lib/active_support/dependencies.rb:359:in `require_or_load'
    from /Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/activesupport-3.2.8/lib/active_support/dependencies.rb:313:in `depend_on'
    from /Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/activesupport-3.2.8/lib/active_support/dependencies.rb:225:in `require_dependency'
    from /Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/railties-3.2.8/lib/rails/engine.rb:439:in `block (2 levels) in eager_load!'
    from /Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/railties-3.2.8/lib/rails/engine.rb:438:in `each'
    from /Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/railties-3.2.8/lib/rails/engine.rb:438:in `block in eager_load!'
    from /Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/railties-3.2.8/lib/rails/engine.rb:436:in `each'
    from /Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/railties-3.2.8/lib/rails/engine.rb:436:in `eager_load!'
    from /Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/railties-3.2.8/lib/rails/application/finisher.rb:53:in `block in <module:Finisher>'
    from /Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/railties-3.2.8/lib/rails/initializable.rb:30:in `instance_exec'
    from /Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/railties-3.2.8/lib/rails/initializable.rb:30:in `run'
    from /Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/railties-3.2.8/lib/rails/initializable.rb:55:in `block in run_initializers'
    from /Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/railties-3.2.8/lib/rails/initializable.rb:54:in `each'
    from /Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/railties-3.2.8/lib/rails/initializable.rb:54:in `run_initializers'
    from /Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/railties-3.2.8/lib/rails/application.rb:136:in `initialize!'
    from /Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/railties-3.2.8/lib/rails/railtie/configurable.rb:30:in `method_missing'
    from /Users/stacyrandel/rails_projects/callred/config/environment.rb:5:in `<top (required)>'
    from /Users/stacyrandel/rails_projects/callred/spec/spec_helper.rb:3:in `require'
    from /Users/stacyrandel/rails_projects/callred/spec/spec_helper.rb:3:in `<top (required)>'
    from /Users/stacyrandel/rails_projects/callred/spec/requests/static_pages_spec.rb:1:in `require'
    from /Users/stacyrandel/rails_projects/callred/spec/requests/static_pages_spec.rb:1:in `<top (required)>'
    from /Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/rspec-core-2.8.0/lib/rspec/core/configuration.rb:698:in `load'
    from /Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/rspec-core-2.8.0/lib/rspec/core/configuration.rb:698:in `block in load_spec_files'
    from /Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/rspec-core-2.8.0/lib/rspec/core/configuration.rb:698:in `map'
    from /Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/rspec-core-2.8.0/lib/rspec/core/configuration.rb:698:in `load_spec_files'
    from /Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/rspec-core-2.8.0/lib/rspec/core/command_line.rb:22:in `run'
    from /Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/rspec-core-2.8.0/lib/rspec/core/runner.rb:80:in `run_in_process'
    from /Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/rspec-core-2.8.0/lib/rspec/core/runner.rb:69:in `run'
    from /Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/rspec-core-2.8.0/lib/rspec/core/runner.rb:10:in `block in autorun'

stacyrandel$bundle exec rspec spec/requests/static\u pages\u spec.rb
/Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/activesupport-3.2.8/lib/active\u support/dependencies.rb:251:in'require'：/Users/stacyrandel/rails\u projects/callred/app/models/user.rb:21:语法错误，意外的“：”，需要关键字\u end（SyntaxError）
唯一性：{区分大小写：false}
^
from/Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/activesupport-3.2.8/lib/active\u support/dependencies.rb:251:“请求中的块”中
from/Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/activesupport-3.2.8/lib/active\u support/dependencies.rb:236:in'load\u dependenciency'
from/Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/activesupport-3.2.8/lib/active\u support/dependencies.rb:251:in'require'
来自/Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/activesupport-3.2.8/lib/active\u support/dependencies.rb:359:in'require\u或\u load'
from/Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/activesupport-3.2.8/lib/active\u support/dependencies.rb:502:in'load\u missing\u constant'
from/Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/activesupport-3.2.8/lib/active\u support/dependencies.rb:192:in`block in const\u missing'
from/Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/activesupport-3.2.8/lib/active\u support/dependencies.rb:190:in“each”
from/Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/activesupport-3.2.8/lib/active\u support/dependencies.rb:190:in'const\u missing'
from/Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/activesupport-3.2.8/lib/active\u-support/endoctor/methods.rb:230:in“块体不变”
from/Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/activesupport-3.2.8/lib/active\u-support/endoctor/methods.rb:229:in'each'
from/Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/activesupport-3.2.8/lib/active\u support/influctor/methods.rb:229:in“constantize”
from/Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/activesupport-3.2.8/lib/active\u support/influctor/methods.rb:260:in“安全”constantize
from/Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/activesupport-3.2.8/lib/active\u support/core\u ext/string/influctions.rb:66:in'safe\u constantize'
来自/Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/actionpack-3.2.8/lib/action\u controller/metal/params\u wrapper.rb:152:在“默认包装”模型中
from/Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/actionpack-3.2.8/lib/action\u controller/metal/params\u wrapper.rb:169:in`_set\u wrapper\u默认值'
来自/Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/actionpack-3.2.8/lib/action\u controller/metal/params\u wrapper.rb:133:在“继承”中
from/Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/actionpack-3.2.8/lib/abstract\u controller/railties/routes\u helpers.rb:7:in `块（2层）中带'
from/Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/actionpack-3.2.8/lib/action\u controller/railties/path.rb:7:in `块（2层）中带'
from/Users/stacyrandel/rails\u projects/callred/app/controllers/Users\u controller.rb:1:in`'
from/Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/activesupport-3.2.8/lib/active\u support/dependencies.rb:251:in'require'
from/Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/activesupport-3.2.8/lib/active\u support/dependencies.rb:251:“请求中的块”中
from/Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/activesupport-3.2.8/lib/active\u support/dependencies.rb:236:in'load\u dependenciency'
from/Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/activesupport-3.2.8/lib/active\u support/dependencies.rb:251:in'require'
来自/Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/activesupport-3.2.8/lib/active\u support/dependencies.rb:359:in'require\u或\u load'
from/Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/activesupport-3.2.8/lib/active\u support/dependencies.rb:313:in'dependent\u'
from/Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/activesupport-3.2.8/lib/active\u support/dependencies.rb:225:in“require\u dependenciency”
from/Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/railties-3.2.8/lib/rails/engine.rb:439:in`block（2层）in eager_load！'
from/Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/railties-3.2.8/lib/rails/engine.rb:438:in'each'
from/Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/railties-3.2.8/lib/rails/engine.rb:438:in `块加载中'
from/Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/railties-3.2.8/lib/rails/engine.rb:436:in'each'
from/Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/railties-3.2.8/lib/rails/engine.rb:436:in'eager_load！'
from/Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/railties-3.2.8/lib/rails/application/finisher.rb:53:in'block in'
from/Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/railties-3.2.8/lib/rails/initializable.rb:30:in'instance_exec'
from/Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/railties-3.2.8/lib/rails/initializable.rb:30:in'run'
from/Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/railties-3.2.8/lib/rails/initializable.rb:55:“运行中的块初始化器”
from/Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/railties-3.2.8/lib/rails/initializable.rb:54:in'each'
from/Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/railties-3.2.8/lib/rails/initializable.rb:54:in'run_initializers'
from/Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/railties-3.2.8/lib/rails/application.rb:136:in'initialize！'
from/Users/stacyrandel/.rvm/gems/ruby-1.9.3-p327/gems/railties-3.2.8/lib/rails/railtie/configurable.rb:30:in'method_missing'
from/Users/stacyrandel/rails\u projects/callred/config/environment.rb:5:in`'
from/Users/stacyrandel/rails\u projects/callred/spec/spec\u helper.rb:3:in'require'
from/Users/stacyrandel/rails\u projects/callred/spec/spec\u helper.rb:3:in
/Users/stacyrandel/rails_projects/callred/app/models/user.rb:21: syntax error, unexpected ':', expecting keyword_end (SyntaxError)
    uniqueness: { case_sensitive: false }

validates :email, :uniqueness => true

validates :email, uniqueness: true