XML comment has cref attribute 'ApiKeys' that could not be resolved

XML comment on 'IPackageDeletionService.DeleteOldVersionsAsync(Package, uint?, uint?, uint?, uint?, CancellationToken)' has a paramref tag for 'maxPath', but there is no parameter by that name

Change return type of method 'GetValidVersions' from 'System.Collections.Generic.IList<NuGet.Versioning.NuGetVersion>' to 'System.Collections.Generic.List<NuGet.Versioning.NuGetVersion>' for improved performance (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1859)

This async method lacks 'await' operators and will run synchronously. Consider using the 'await' operator to await non-blocking API calls, or 'await Task.Run(...)' to do CPU-bound work on a background thread.

This async method lacks 'await' operators and will run synchronously. Consider using the 'await' operator to await non-blocking API calls, or 'await Task.Run(...)' to do CPU-bound work on a background thread.

Possible null reference return.

This async method lacks 'await' operators and will run synchronously. Consider using the 'await' operator to await non-blocking API calls, or 'await Task.Run(...)' to do CPU-bound work on a background thread.

Converting null literal or possible null value to non-nullable type.

Non-nullable property 'AppId' must contain a non-null value when exiting constructor. Consider adding the 'required' modifier or declaring the property as nullable.