How to resolve "Failed to connect to device '127.0.0.1' using Universal Authentication"?

user_9981885 0
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I keep getting this error everytime I try to deploy my UWP app to my local device.

Severity Code Description Project File Line Suppression State Error DEP6957: Failed to connect to device '127.0.0.1' using Universal Authentication. Please verify the correct remote authentication mode is specified in the project debug settings. COMException - No connection could be made because the target machine actively refused it. (Exception from HRESULT: 0x8007274D) [0x8007274D] Voip

I have absolutely ZERO idea on how to resolve this, as it seems everyone else that has this issue is trying to connect to a remote device.

uwp
2 Answers

I got the same error. The problem disappeared when I changed the platform to x86 (or x64) in Visual Studio's configuration manager.

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user_143755710

Make sure your device is connected to your machine.

I had forgotten to plug in my device (hololens 2 in this case).

Solved this error straightaway. It's hard to find something thats not there. :D

user_70322820
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