Not able to define qos type queuing (CBWFQ) on Nexus 1000V

Hello does someone knows why I get this error on my Nexus 1000V version 4.2(1)SV2(1.1a) ?

switch-01(config)# class-map type queuing pippo

ERROR: Command (id: 2) not supported

should I enabe queuing somewhere ?

Thank you in advance ...