Possible null reference argument for parameter 'password' in 'DHLProviderConfiguration.DHLProviderConfiguration(string siteId, string password, bool useProduction)'.

Possible null reference argument for parameter 'siteId' in 'DHLProviderConfiguration.DHLProviderConfiguration(string siteId, string password, bool useProduction)'.

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

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

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

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

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

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

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

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

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

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

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

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

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

Dereference of a possibly null reference.

Possible null reference return.

Dereference of a possibly null reference.

Possible null reference argument for parameter 'token' in 'Task<UpsRatingResponse?> UpsRatingService.GetRatingAsync(HttpClient httpClient, string token, bool isProduction, UpsRatingRequest request, RateResultAggregator resultBuilder, CancellationToken cancellationToken = default(CancellationToken))'.

Possible null reference argument for parameter 'logger' in 'UpsRatingService.UpsRatingService(ILogger logger)'.

Possible null reference return.