The Mixed Reality Forums here are no longer being used or maintained.
There are a few other places we would like to direct you to for support, both from Microsoft and from the community.
The first way we want to connect with you is our mixed reality developer program, which you can sign up for at https://aka.ms/IWantMR.
For technical questions, please use Stack Overflow, and tag your questions using either hololens or windows-mixed-reality.
If you want to join in discussions, please do so in the HoloDevelopers Slack, which you can join by going to https://aka.ms/holodevelopers, or in our Microsoft Tech Communities forums at https://techcommunity.microsoft.com/t5/mixed-reality/ct-p/MicrosoftMixedReality.
And always feel free to hit us up on Twitter @MxdRealityDev.
Trying to build APPX with Unity and Mixed Reality Toolkit
I'm using the Unity / Mixed Reality Toolkit, and using the build dialog. I do a build solution and appx, and get an APPX file successfully. However, when I try and run it, it opens the Windows Store dialog to install, and when I select Install it says I require .Net Core 1.1 ... I've tried installing .net core 1.1 on my own, and it still doesn't work. Any suggestions? Did I do something wrong?