HarmonyOS wifi manager调用addCandidateConfig的问题

let wc:wifiManager.WifiDeviceConfig = {
  ssid:'xxxxShare_678',
  securityType:wifiManager.WifiSecurityType.WIFI_SEC_TYPE_PSK,
  preSharedKey:'d25de85edff3'
}

wifiManager.addCandidateConfig(wc).then((id:number)=>{

  try {
    wifiManager.connectToCandidateConfig(id)
  } catch (err) {

  }

}).catch((err:number)=>{
  hilog.error(0x1100,"Zapya", "err %{public}s ", JSON.stringify(err))
})

得到错误信息：err {“code”:401,“message”:“BussinessError 401: Parameter error.”,“data”:null}