Azure Digital Twins Simulation Device - deployment to Hololens 2

Robert Doe 51

Hi,
Re: 'Build a 3D Scene for mixed reality in Unity'.
Unable to deploy 3D scene to Hololens 2. Visual Studio 2019 DeviceSimulator.sln is running fine and connecting to MS Azure services. Expecting request for Hololens 2 pin from Visual Studio as first deployment this registration. App title BladeMR is therefore not appearing in Hololens 2.

Build settings in Unity are UWP and x64 (ARM64 not available).
VS 2019 configured to Release and x64.
Using Wifi connection to PC and Hololens 2. All registered in my ownership (not an institution).
Windows 11 Pro 21H2.

How can I deploy the app in Hololens 2? Please advise.

António Sérgio Azevedo 7,671 Reputation points Microsoft Employee

2022-02-11T12:37:38.457+00:00

Hi @Robert Doe can you confirm what is the current version of Unity that you are using? See: Choosing a Unity version and XR plugin as well as Unity development for HoloLens

Thanks!
Robert Doe 51 Reputation points

2022-02-12T01:33:20.443+00:00
Hi @António Sérgio Azevedo , thanks for your reply.

To date I've used: Unity 2020.3.8f1, UWP, IL2CPP

Project set up with, OpenXR, MRTK

Have been using VS2019 with additions, but have now modified VS2022 to include:

UWP (USB device connect, C++ v142, Windows 10 SDK 10.0.18362.0, Windows 11 SDK 10.0.22000.0)

Desktop dev C++

Game dev with Unity

I'll run the above using VS2022 but still have some questions:

Does SimulatorDevice.sln only work with USB connection, not wifi?

From Unity is it not possible to Build using UWP x64 and create VS .sln , hence .sln provided?

If yes to 2., then I'm unsure why there are 3 options for 'Deploy to Hololens 2, test, uninstall' included in mslearn-adt-in-unity 2nd, 3rd, 4th exercises (https://learn.microsoft.com/en-us/learn/paths/build-mixed-reality-azure-digital-twins-unity/) as each time I would only be running the same VS .sln provided?

If no to 2., then I guess my set-up for Unity/Build needs fixing?
Robert Doe 51 Reputation points

2022-02-14T23:26:23.347+00:00

Hi @António Sérgio Azevedo , thanks for your reply.

To date I've used: Unity 2020.3.8f1, UWP, IL2CPP

Project set up with, OpenXR, MRTK.

Some details below.

1 answer

Hernando Ren 2,171 Reputation points

2022-02-18T06:01:14.927+00:00
Could you try to do the following step on the VS to deploy your app?

Navigate into the project folder that was built by Unity, find the solution file located inside this folder, and open it with Visual Studio.

Click the Compilation Options drop-down and choose the Release.

Choose the ARM64 configuration option.

Click the deployment target drop-down and select Device. (Make sure your HoloLens 2 is connected to the PC.)

If the behavior is the same, please provide more details about "ARM64 not available" in your Unity.
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António Sérgio Azevedo 7,671 Reputation points Microsoft Employee

2022-03-10T16:04:29.37+00:00

Hello @Robert Doe ,

Please share with us if you have any other questions related with your original post. Otherwise could you go ahead and mark the above as answer?

Thank you so much.

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Azure Digital Twins Simulation Device - deployment to Hololens 2

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