UWP Bluetooth: Value does not fall within the expected range

I am trying to implement a simple service on Windows, using this sample:

UWP Bluetooth: Value does not fall within the expected range

I am trying to implement a simple service on Windows, using this sample:

UWP Bluetooth: Value does not fall within the expected range

I am trying to implement a simple service on Windows, using this sample:

UWP Bluetooth: Value does not fall within the expected range

I am trying to implement a simple service on Windows, using this sample:

UWP Bluetooth: Value does not fall within the expected range

I am trying to implement a simple service on Windows, using this sample: