当我退出命令时：bundle exec rspec spec/我收到此错误：
值得注意的是：Unknown validator: 'LenghtValidator' (ArgumentError)
No DRb server is running. Running in local process instead ...
C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/activemodel-4.0.0/lib/active_model/validations/validates.rb:116:in `rescue in b
lock in validates': Unknown validator: 'LenghtValidator' (ArgumentError)
from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/activemodel-4.0.0/lib/active_model/validations/validates.rb:113:in
`block in validates'
from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/activemodel-4.0.0/lib/active_model/validations/validates.rb:109:in
`each'
from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/activemodel-4.0.0/lib/active_model/validations/validates.rb:109:in
`validates'
from C:/Sites/rails/twitter/app/models/user.rb:4:in `<class:User>'
from C:/Sites/rails/twitter/app/models/user.rb:1:in `<top (required)>'
from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/activesupport-4.0.0/lib/active_support/dependencies.rb:228:in `req
uire'
from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/activesupport-4.0.0/lib/active_support/dependencies.rb:228:in `blo
ck in require'
from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/activesupport-4.0.0/lib/active_support/dependencies.rb:213:in `loa
d_dependency'
from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/activesupport-4.0.0/lib/active_support/dependencies.rb:228:in `req
uire'
from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/activesupport-4.0.0/lib/active_support/dependencies.rb:329:in `req
uire_or_load'
from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/activesupport-4.0.0/lib/active_support/dependencies.rb:462:in `loa
d_missing_constant'
from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/activesupport-4.0.0/lib/active_support/dependencies.rb:183:in `con
st_missing'
from C:/Sites/rails/twitter/spec/models/user_spec.rb:3:in `<top (required)>'
from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/rspec-core-2.13.1/lib/rspec/core/configuration.rb:819:in `load'
from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/rspec-core-2.13.1/lib/rspec/core/configuration.rb:819:in `block in
load_spec_files'
from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/rspec-core-2.13.1/lib/rspec/core/configuration.rb:819:in `each'
from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/rspec-core-2.13.1/lib/rspec/core/configuration.rb:819:in `load_spe
c_files'
from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/rspec-core-2.13.1/lib/rspec/core/command_line.rb:22:in `run'
from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/rspec-core-2.13.1/lib/rspec/core/runner.rb:77:in `rescue in run'
from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/rspec-core-2.13.1/lib/rspec/core/runner.rb:73:in `run'
from C:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/rspec-core-2.13.1/lib/rspec/core/runner.rb:17:in `block in autorun
'
Gemfile.lock的：
GIT
remote: git://github.com/thomas-mcdonald/bootstrap-sass.git
revision: 0e88056ac5d58fb0bbd23d3fe929eac01712d964
branch: 3
specs:
bootstrap-sass (3.0.0.0)
sass (~> 3.2)
GEM
remote: https://rubygems.org/
specs:
actionmailer (4.0.0)
actionpack (= 4.0.0)
mail (~> 2.5.3)
actionpack (4.0.0)
activesupport (= 4.0.0)
builder (~> 3.1.0)
erubis (~> 2.7.0)
rack (~> 1.5.2)
rack-test (~> 0.6.2)
activemodel (4.0.0)
activesupport (= 4.0.0)
builder (~> 3.1.0)
activerecord (4.0.0)
activemodel (= 4.0.0)
activerecord-deprecated_finders (~> 1.0.2)
activesupport (= 4.0.0)
arel (~> 4.0.0)
activerecord-deprecated_finders (1.0.3)
activesupport (4.0.0)
i18n (~> 0.6, >= 0.6.4)
minitest (~> 4.2)
multi_json (~> 1.3)
thread_safe (~> 0.1)
tzinfo (~> 0.3.37)
arel (4.0.1)
atomic (1.1.14)
bcrypt-ruby (3.0.1-x86-mingw32)
builder (3.1.4)
capybara (2.1.0)
mime-types (>= 1.16)
nokogiri (>= 1.3.3)
rack (>= 1.0.0)
rack-test (>= 0.5.4)
xpath (~> 2.0)
childprocess (0.3.9)
ffi (~> 1.0, >= 1.0.11)
coffee-rails (4.0.1)
coffee-script (>= 2.2.0)
railties (>= 4.0.0, < 5.0)
coffee-script (2.2.0)
coffee-script-source
execjs
coffee-script-source (1.6.3)
diff-lcs (1.2.4)
erubis (2.7.0)
execjs (2.0.2)
ffi (1.9.1)
hike (1.2.3)
i18n (0.6.5)
jbuilder (1.0.2)
activesupport (>= 3.0.0)
jquery-rails (3.0.4)
railties (>= 3.0, < 5.0)
thor (>= 0.14, < 2.0)
json (1.8.1)
mail (2.5.4)
mime-types (~> 1.16)
treetop (~> 1.4.8)
mime-types (1.25)
mini_portile (0.5.2)
minitest (4.7.5)
multi_json (1.8.2)
nokogiri (1.6.0-x86-mingw32)
mini_portile (~> 0.5.0)
pg (0.15.1-x86-mingw32)
polyglot (0.3.3)
rack (1.5.2)
rack-test (0.6.2)
rack (>= 1.0)
rails (4.0.0)
actionmailer (= 4.0.0)
actionpack (= 4.0.0)
activerecord (= 4.0.0)
activesupport (= 4.0.0)
bundler (>= 1.3.0, < 2.0)
railties (= 4.0.0)
sprockets-rails (~> 2.0.0)
rails_12factor (0.0.2)
rails_serve_static_assets
rails_stdout_logging
rails_serve_static_assets (0.0.1)
rails_stdout_logging (0.0.3)
railties (4.0.0)
actionpack (= 4.0.0)
activesupport (= 4.0.0)
rake (>= 0.8.7)
thor (>= 0.18.1, < 2.0)
rake (10.1.0)
rdoc (3.12.2)
json (~> 1.4)
rspec-core (2.13.1)
rspec-expectations (2.13.0)
diff-lcs (>= 1.1.3, < 2.0)
rspec-mocks (2.13.1)
rspec-rails (2.13.1)
actionpack (>= 3.0)
activesupport (>= 3.0)
railties (>= 3.0)
rspec-core (~> 2.13.0)
rspec-expectations (~> 2.13.0)
rspec-mocks (~> 2.13.0)
rubyzip (0.9.9)
sass (3.2.12)
sass-rails (4.0.1)
railties (>= 4.0.0, < 5.0)
sass (>= 3.1.10)
sprockets-rails (~> 2.0.0)
sdoc (0.3.20)
json (>= 1.1.3)
rdoc (~> 3.10)
selenium-webdriver (2.35.1)
childprocess (>= 0.2.5)
multi_json (~> 1.0)
rubyzip (< 1.0.0)
websocket (~> 1.0.4)
sprockets (2.10.0)
hike (~> 1.2)
multi_json (~> 1.0)
rack (~> 1.0)
tilt (~> 1.1, != 1.3.0)
sprockets-rails (2.0.1)
actionpack (>= 3.0)
activesupport (>= 3.0)
sprockets (~> 2.8)
sqlite3 (1.3.8-x86-mingw32)
thor (0.18.1)
thread_safe (0.1.3)
atomic
tilt (1.4.1)
treetop (1.4.15)
polyglot
polyglot (>= 0.3.1)
turbolinks (1.1.1)
coffee-rails
tzinfo (0.3.38)
uglifier (2.1.1)
execjs (>= 0.3.0)
multi_json (~> 1.0, >= 1.0.2)
websocket (1.0.7)
xpath (2.0.0)
nokogiri (~> 1.3)
PLATFORMS
x86-mingw32
DEPENDENCIES
bcrypt-ruby (= 3.0.1)
bootstrap-sass!
capybara (= 2.1.0)
coffee-rails (= 4.0.1)
jbuilder (= 1.0.2)
jquery-rails (= 3.0.4)
pg (= 0.15.1)
rails (= 4.0.0)
rails_12factor (= 0.0.2)
rspec-rails (= 2.13.1)
sass-rails (= 4.0.1)
sdoc (= 0.3.20)
selenium-webdriver (= 2.35.1)
sqlite3 (= 1.3.8)
turbolinks (= 1.1.1)
uglifier (= 2.1.1)
答案 0 :(得分：6)
您实际上可能错误地输入了'length'这个词，并且Rails正在推断验证器的名称。检查这一行：
C:/Sites/rails/twitter/app/models/user.rb:4
你几乎肯定会在验证定义中找到lenght这个词。修复错字，这应该有用。
答案 1 :(得分：0)
看起来你在某处拼错了“LengthValidator”。 “LenghtValidator”就是它的抱怨。