MRTK (V2) Need to update Hololens?

To fix this error you need to update your Build Settings so that the Minimum SDK version is at or lower than your HoloLens OS version. I usually use 10.0.10240.0. You still need to make sure that your target SDK version is “latest installed”. Try doing the following steps:

1. Delete your generated UWP project.
2. Open the build settings window in Unity.
3. Make sure that Minimum SDK is is 10.0.10240.0
4. Make sure that Target SDK version is “latest installed”
5. Re-generate the solution and deploy to HoloLens.