creating a table using sqlite.net and linq with primary autonumber key

I want to create a table using sqlite.net with a Primary Key auto-number.

I know how to do it the command object but want it done using this framework. I thought all I had to do was define the model with the correct attrinbutes?

This is my model:

[Table("Customer")]
public sealed class Customer
{
    public Customer() { }
    [PrimaryKey]
    [AutoIncrement]
    public int CustomerId { get; set; }
    public bool Exists { get; set; }
    public string ErrorMessage { get; set; }
    public string CustomerRef { get; set; }
    public string SName { get; set; }
    public string FName { get; set; }     
    public string ContactNo { get; set; }
    public string Email { get; set; }
    public string DOE { get; set; }
    public string Add1 { get; set; }
    public string Add2 { get; set; }
    public string Add3 { get; set; }
    public string Town { get; set; }
    public string County { get; set; }
    public string PCode { get; set; }
    public string Country { get; set; }
    public string CustomerHeader { get; set; }
    public string AddressHeader { get; set; }
}

This is my creator:

DB.GetConnection();
DB.Connector.CreateTable<Model.Customer>();

It creates the table OK but no PK or auto-number has been defined..?