Cannot implicitly convert type 'int?' to 'System.DateTime?'

Property or indexer 'SubscriptionRampInterval.EndingOn' cannot be assigned to -- it is read only

'DateTime' does not contain a definition for 'IsNullOrWhiteSpace' and the best extension method overload 'StringExtensions.IsNullOrWhiteSpace(string)' requires a receiver of type 'string'

Cannot implicitly convert type 'int?' to 'System.DateTime?'

Property or indexer 'SubscriptionRampInterval.EndingOn' cannot be assigned to -- it is read only

'DateTime' does not contain a definition for 'IsNullOrWhiteSpace' and the best extension method overload 'StringExtensions.IsNullOrWhiteSpace(string)' requires a receiver of type 'string'

Process completed with exit code 1.

.NET 5.0 is no longer supported and will not receive security updates in the future. Please refer to https://aka.ms/dotnet-core-support for more information about the .NET support policy.

'CreditPayment.UnitAmountInCents' is obsolete: 'Deprecated, please use AmountInCents'