devise - Filter chain halted as :require_no_authentication rendered or redirected rails 4 -


in ability.rb:

def initialize(user)   user ||= user.new   if user.role? :agent     can :manage, servicerequest   elsif user.role? :punching_team     can :manage, srdocument   end

in service_request_controller:

load_and_authorize_resource

in sr_documents_controller:

load_and_authorize_resource

in application_controller:

rescue_from cancan::accessdenied |exception|   redirect_to root_url, :alert => exception.message end

in routes:

devise_scope :user   root to: "devise/sessions#new" end

in log:

redirected http://localhost:3000/ filter chain halted :require_no_authentication rendered or redirected

i using cancan gem in application.i want set authorization in such way if user 'agent' he/she should access servicerequest model , 'punching_team' type he/she should access srdocument model.but when login agent, getting infinite loop.which gives me errors `filter chain halted :require_no_authentication rendered or redirected.please me out.


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