Uwp.App/
     Depends on Uwp.Model
Uwp.Model/
     Depends on Microsoft.Data.Sqlite

When building appx packages for uwp.app, sqlite3.dll for win32, not winrt, is included in the build output.

Workaround

Explicitly add Microsoft.Data.Sqlite as a dependency of Uwp.App

  "dependencies": {
    "Microsoft.NETCore.UniversalWindowsPlatform": "5.1.0",
    "Microsoft.Data.Sqlite": "1.0.0-*"
  }

Root cause of dotnet/efcore#5069. Hopefully we can resolve this with a solution for #237