Indicates that unknown error occured while downloading an asset pack.
Some possible causes of this are:
* You are trying to use PlayCore API to access install-time delivered Android asset pack.
* You are testing a locally built application (not installed from the Google Play Store) and the Android asset pack with the specified name does not exist.
See Also: AndroidAssetPacks.DownloadAssetPackAsync, AndroidAssetPacks.GetAssetPackStateAsync.