32feet .NET api拒绝连接“请求的地址在其上下文中无效”

Question

I've been trying to fix this problem for an hour now and it's been giving me a headache. All I'm trying to do is connect a Bluetooth device to my application using the example on this page . When the .Connect function is called, a SocketException occurs saying "The requested address is not valid in its context".

I am positive the address of the device I'm pairing is correct; I even discovered devices and used an address from one of the found devices, yet I still got the same error. I've tried both BluetoothService.SerialPort and the MyConsts class example for the Guid, and both raised the same error.

The code I'm using is here:

BluetoothAddress addr = BluetoothAddress.Parse("78A2A0FC0BB1");
Guid serviceClass;
serviceClass = BluetoothService.SerialPort;
// - or - etc
// serviceClass = MyConsts.MyServiceUuid
//
var ep = new BluetoothEndPoint(addr, serviceClass);
var cli = new BluetoothClient();
cli.Connect(ep);
Stream peerStream = cli.GetStream();

I'm also using Visual Studio 2015.

Answer 1

According the documentation it is not issue with the address itself but with services that are running on the device.

https://32feet.codeplex.com/wikipage?title=Errors

No Service with given Service Class Id is running on the remote device

Are you sure that device you are using has SerialPort profile running?