ruby - ActiveModel::MassAssignmentSecurity::Error in ApiUsersController#create -

I'm not able to create a new API user. I try to create this. I

  Large scale assigns can not be protected: UTF8, authenticity_token, api_user, committed, action, controller   
 Here is my model  api_user.rb  < / P> 
  class your user & lt; ActiveRecord :: Base attr_accessible: api_key ,: count ,: email,: name, organization end   
 administrator  api_users_controller.rb   
 < Code> Class APIUs Administrator & lt; ApplicationController #skip_before_filter: verify_authenticity_token def new @api_user = ApiUser.new end DEF @ api_user = ApiUser.create (parameter) render: text = & gt; "# {@ Api_user.id}" End DEF deleted @ api_user = ApiUser.find (parameter [: id]) @ api_user.destroy render: text = & gt; "Successfully Destroyed" End End   
 I'm using Ruby 1.9.2 and Rail 3.2.3   
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 all  parameters  hash