appbox.AppContainer.runtimeconfig.json

{
  "runtimeOptions": {
    "additionalProbingPaths": [
      "lib"
    ],
    "includedFrameworks": [
      {
        "name": "Microsoft.NETCore.App",
        "version": "3.1.1"
      }
    ],
    "tfm": "netcoreapp3.1"
  }
}