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Launching App Remotely throws 'Unauthorized' Exception

Hello all,

I'm attempting to use the C# Windows Device Portal Wrapper to remotely launch a Hololens app from a PC. However, my code as posted below is throwing an 'Unauthorized' exception. What is this exception, and how should I resolve it?

private async Task LaunchApplication()
    {
        try
        {
            Debug.Log("Launching...");
            await portal.LaunchApplicationAsync(appid, packageName);
            Debug.Log("Launched");
        }
        catch (DevicePortalException e)
        {
            Debug.Log(e.Reason);
        }
    }

I am running this code as a UWP from the Unity Editor. According to the debug output, the Device Portal connection is successfully established, so there shouldn't be any issues there...

I'm not terribly experienced as a developer (college student), so I may be missing something obvious, but any help would be appreciated nonetheless! Thanks

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