Indy TIdHashMessageDigest5 HashStringAsHex compile time error: Undeclared identifier: 'HashStringAsHex'

Question

Using: D7

uses SysUtils, StrUtils, IdHash, IdHashMessageDigest;

..

var
  idmd5: TIdHashMessageDigest5;
  h, v: string;
begin
  idmd5 := TIdHashMessageDigest5.Cr