关于生成richedit控件的问题，麻烦解答一下

[gjjguown]

unit Unit2;

interface

uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, StdCtrls, ComCtrls;

type
TForm1 = class(TForm)
Button1: TButton;
procedure Button1Click(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;

var
Form1: TForm1;
Newre:array of TRichEdit;

implementation

{$R *.dfm}

procedure TForm1.Button1Click(Sender: TObject);
var
i,t:integer;

begin
t:=0 ;
for i:=1 to 4 do
begin
Newre[i]:=TRichEdit.Create(Self);
Newre[i].parent:=self;
Newre[i].height:=25;
Newre[i].left:=80;
Newre[i].width:=185;
Newre[i].top:=t+50;
end;
end;

end.

[gjjguown]

程序运行后出错：
Newre[i]:=TRichEdit.Create(Self);

麻烦帮忙解决一下