Enum case＆＃39; poweredon＆＃39;不属于＆＃39; CBManagerState＆＃39;

Question

您好我在使用＆＃34; CBPeripheralManager＆＃34;时遇到错误这是我的代码

扩展名BLEPeripheralManager：CBPeripheralManagerDelegate {

func peripheralManagerDidUpdateState(_ peripheral: CBPeripheralManager){

    print("state updated\(peripheral.state)")

    switch(peripheral.state){

    case CBPeripheralManagerState.poweredOn:
        self.delegate?.blePeripheralManager(self, communicatorInitializationSuccessWithBluetoothState:BluetoothState.PoweredOn)
        break

    case CBPeripheralManagerState.poweredOff:
        self.delegate?.blePeripheralManager(self, communicatorInitializationFailWithBluetoothState: BluetoothState.PoweredOff)
        break

    case CBPeripheralManagerState.resetting:
        self.delegate?.blePeripheralManager(self, communicatorInitializationFailWithBluetoothState: BluetoothState.Resetting)
        break

    case CBPeripheralManagerState.unauthorized:
        self.delegate?.blePeripheralManager(self, communicatorInitializationFailWithBluetoothState: BluetoothState.Unauthorized)
        break

    case CBPeripheralManagerState.unknown:
        self.delegate?.blePeripheralManager(self, communicatorInitializationFailWithBluetoothState: BluetoothState.Unknown)
        break

    case CBPeripheralManagerState.unsupported:
        self.delegate?.blePeripheralManager(self, communicatorInitializationFailWithBluetoothState: BluetoothState.Unsupported)
        break

    }
}

Screen shot of error