Failed to resolve assembly UniversalApiContract

Unity Engine
1

Since upgrading from HoloToolkit to Mixed Reality Toolkit, I am unable to build for hololens. The error unity throws is:

Mono.Cecil.AssemblyResolutionException: Failed to resolve assembly: 'Windows.Foundation.UniversalApiContract, Version=8.0.0.0, Culture=neutral, PublicKeyToken=null'
  at Mono.Cecil.BaseAssemblyResolver.Resolve(AssemblyNameReference name, ReaderParameters parameters)
  at Burst.Compiler.IL.AssemblyLoader.Resolve(AssemblyNameReference name)
  at Burst.Bcl.BclApp.LoadAllAssemblyReferences(AssemblyDefinition asmDef, Dictionary2 visited)
  at Burst.Bcl.BclApp.LoadAllAssemblyReferences(AssemblyDefinition asmDef, Dictionary2 visited)
  at Burst.Bcl.BclApp.FindExecuteMethods(List`1 rootAssemblyPaths)
  at Burst.Bcl.BclApp.GetMethodsToCompile()
  at Burst.Bcl.Program.Main(String[] args)

The scene itself is mostly empty, containing only the required gameobjects for MRTK (Directional Light, MixedRealityToolkit and MixedRealityPlayspace, which has the Main Camera as child.) Building a test scene from the MRTK works fine, so it must have something to do with our project.

Unity version 2019.2.6, SDK version 10.0.18362.0

2

Can you submit a bug report for this?

3

I will first thing Monday morning when I get back in office.

4

Thanks!

5

I’ve submitted a bug report, but the link I received to the issue tracker doesn’t work. I also can’t find the issue in the issue tracker. This is the link I received in my mail: Unity Issue Tracker - [UWP][19.2] Build fails when using Burst with Mixed Reality Toolkit