CsvHelper error when using RegisterClassMap

Question

I've based the mappings for my CSV file based off the official docs here: https://joshclose.github.io/CsvHelper/getting-started

here are my class I'm using

public class DropShippperCSV
{
    public string PurchaseOrderNumber { get; set; }
    public int ReleaseNumber { get; set; }
    public int LineNumber { get; set; }
    public string DeliveryCompanyName { get; set; }
    public string DeliveryCompanyTrackingNumber { get; set; }
}

public class DropShippperCSVMap : ClassMap<DropShippperCSV>
{
    public DropShippperCSVMap()
    {
        Map(m => m.PurchaseOrderNumber).Column("Delivery Company Tracking Number");
        Map(m => m.ReleaseNumber).Column("Release Number");
        Map(m => m.LineNumber).Column("Line Number");
        Map(m => m.DeliveryCompanyName).Column("Delivery Company Name");
        Map(m => m.DeliveryCompanyTrackingNumber).Column("Delivery Company Tracking Number");
    }
}

then calling on it like so

                var reader = new StreamReader(file.OpenReadStream());
                var csv = new CsvReader(reader);

                csv.Configuration.RegisterClassMap<DropShippperCSVMap>();
               var records = csv.GetRecords<DropShippperCSV>().ToList();

and I'm getting this error

Error CS0311 The type 'DropShippperCSVMap' cannot be used as type parameter 'TMap' in the generic type or method 'IReaderConfiguration.RegisterClassMap()'. There is no implicit reference conversion from 'DropShippperCSVMap' to 'CsvHelper.Configuration.ClassMap'.

I've based directly off the offical docs and I can't tell what I did wrong

Answer 1

Use csv.Context.RegisterClassMap<DropShippperCSVMap>(); instead of csv.Configuration.RegisterClassMap<DropShippperCSVMap>();.

Answer 2

I droped FluentNHibernate and RegisterClassMap entirely and used CsvHelper.Configuration.Attributes Name attribute to do the mapping instead