UnresolvableTypeReference Unresolvable type reference 'System.Threading.Tasks.Task' in 'Assembly(Name=System.Runtime,....

[rajeshagadi-xx]

HOL 2>Exercise 5>Step 10
Unable to successful build the UWP App with below error.

C:\Users<username>.nuget\packages\microsoft.net.native.compiler\1.7.3\tools\Microsoft.NetNative.targets(697,5): error : MCG0024: MCG0024:UnresolvableTypeReference Unresolvable type reference 'System.Threading.Tasks.Task' in 'Assembly(Name=System.Runtime, Version=4.2.1.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a)' found. Please check the references in your build system. A reference is either missing or an assembly is missing an expected type.

[OnCodesmith]

I can be certain, without running the solution in my environment, but first, be certain the project truly doesn't compile and run, as UWP apps are prone to bogus error output at times, and I believe this is actually bogus. If this is truly the case, I would suggest closing the VS IDE, and deleting the OBJ and BIN folders in your project directory, then doing a full solution Clean and Rebuild.

Let me know.