Sdkerr_service_failed

I am using the C# windows SDK to Integrate Zoom in my application.

When I start / Join the Call It throws me an SDKERR_SERVICE_FAILED error.

Due to which I could not continue to connect Zoom call.

Notes :

  1. I used Login Type as LoginType_Email

  2. Sample code to Join
    RegisterCallBack();
    ZOOM_SDK_DOTNET_WRAP.JoinParam param = new ZOOM_SDK_DOTNET_WRAP.JoinParam();
    param.userType = ZOOM_SDK_DOTNET_WRAP.SDKUserType.SDK_UT_APIUSER;
    ZOOM_SDK_DOTNET_WRAP.JoinParam4APIUser join_api_param = new ZOOM_SDK_DOTNET_WRAP.JoinParam4APIUser();
    join_api_param.meetingNumber = txtMeetingID.Text;
    join_api_param.userName = “Test”;
    param.apiuserJoin = join_api_param;

            ZOOM_SDK_DOTNET_WRAP.SDKError err = ZOOM_SDK_DOTNET_WRAP.CZoomSDKeDotNetWrap.Instance.GetMeetingServiceWrap().Join(param);

hi, thanks for your feedback.
please help to check the following items in your code.
1.please ensure call join meeting API after got the auth success callback
2.if you login via our windows SDK, please call join meeting API after got the login success callback
3.data type of join_api_param.meetingNumber is the Integer.
thanks
Dats