Error in FK when running Migrations in C #

I have the following scenario

public class branch()
{
    public Branch()
    {
        Branchs = new HashSet<Branch>();
    }

    [StringLength(80)]
    public string Description { get; set; }

    [Required]
    [ForeignKey("TypeDelivery")]
    public long TypeDeliveryId { get;set; }

    public virtual TypeDelivery TypeDeliverys { get; set; }
}
public class TypeDelivery()
{
    public TypeDelivery()
    {
        Branchs = new HashSet<Branch>();
    }

    [StringLength(80)]
    public string Description { get; set; }
    public virtual ICollection<Branch> Branchs { get; set; }
}

But when I run the update-database on migrations it returns the following error.

  

Error Number: 547, State: 0, Class: 16
      The ALTER TABLE statement conflicted with the FOREIGN KEY constraint "FK_dbo.Branches_dbo.TypeDeliveries_TypeDeliveryId". The conflict occurred in database "PensouChegouProducao", table "dbo.TypeDeliveries", column 'Id'.

If anyone has been through this please help me.

Follow the migration file.

public override void Up()
{
    AddColumn("dbo.Branches", "TypeDeliveryId", c => c.Long(nullable: false));
    CreateIndex("dbo.Branches", "TypeDeliveryId");
    AddForeignKey("dbo.Branches", "TypeDeliveryId", "dbo.TypeDeliveries", "Id");
}

public override void Down()
{
    DropForeignKey("dbo.Branches", "TypeDeliveryId", "dbo.TypeDeliveries");
    DropIndex("dbo.Branches", new[] { "TypeDeliveryId" });
    DropColumn("dbo.Branches", "TypeDeliveryId");
}