当我尝试使用以下方法生成控制器时遇到问题：
rails generate controller profiles show
我已经尝试过这个解决方案，但没有奏效：
script/rails generate controller profiles show
./script/rails generate controller profiles show
一些错误：
/Users/italoborges/.rvm/gems/ruby-1.9.3-p392/gems/activemodel-3.2.12/lib/active_model/validations/format.rb:17:in `check_validity!': Either :with or :without must be supplied (but not both) (ArgumentError)
from /Users/italoborges/.rvm/gems/ruby-1.9.3-p392/gems/activemodel-3.2.12/lib/active_model/validator.rb:143:in `initialize'
from /Users/italoborges/.rvm/gems/ruby-1.9.3-p392/gems/activemodel-3.2.12/lib/active_model/validations/with.rb:82:in `new'
from /Users/italoborges/.rvm/gems/ruby-1.9.3-p392/gems/activemodel-3.2.12/lib/active_model/validations/with.rb:82:in `block in validates_with'
from /Users/italoborges/.rvm/gems/ruby-1.9.3-p392/gems/activemodel-3.2.12/lib/active_model/validations/with.rb:81:in `each'
from /Users/italoborges/.rvm/gems/ruby-1.9.3-p392/gems/activemodel-3.2.12/lib/active_model/validations/with.rb:81:in `validates_with'
from /Users/italoborges/.rvm/gems/ruby-1.9.3-p392/gems/activemodel-3.2.12/lib/active_model/validations/validates.rb:99:in `block in validates'
from /Users/italoborges/.rvm/gems/ruby-1.9.3-p392/gems/activemodel-3.2.12/lib/active_model/validations/validates.rb:90:in `each'
from /Users/italoborges/.rvm/gems/ruby-1.9.3-p392/gems/activemodel-3.2.12/lib/active_model/validations/validates.rb:90:in `validates'
from /Volumes/Development/development/ruby/Tasker/0001_Hello/04_Desenvolvimento/Ruby/app/models/user.rb:14:in `<class:User>'
我正在使用 Rails 3.2 和 Ruby 1.9.3。