不能将类型'[RKDataStreamingMask]的值转换为预期的参数类型'RKDataStreamingMask'

Xcode 7 and my code:

Xcode 7和我的代码:

func sendSetDataStreamingCommand {
let mask = RKDataStreamingMask.AccelerometerFilteredAll |
RKDataStreamingMask.IMUAnglesFilteredAll |
RKDataStreamingMask.QuaternionAll ;
self.robot.enableSensors(mask,atStreamingRate:RKStreamingRate.DataStreamingRate10);
}
func sen