delphi报错

unit student;
interface
uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, ComCtrls, Buttons, ExtCtrls, jpeg;
type
  TForm1 = class(TForm)
    StatusBar1: TStatusBar;
    Image1: TImage;
    Panel1: TPanel;
    SpeedButton1: TSpeedButton;
    SpeedButton2: TSpeedButton;
    SpeedButton3: TSpeedButton;
    SpeedButton4: TSpeedButton;
    SpeedButton5: TSpeedButton;
    procedure FormCreate(Sender: TObject);
    procedure SpeedButton1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;
var
  Form1: TForm1;
implementation
{$R *.dfm}
procedure TForm1.FormCreate(Sender: TObject);
begin
statusBar1.Panels[0].Text := '欢迎使用本系统';
statusBar1.Panels[1].Text := datetostr(date);
end;
procedure TForm1.SpeedButton1Click(Sender: TObject);
begin
form2.show;
end;
end.
unit editinfo;
interface
uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, ExtCtrls, StdCtrls, DBCtrls, Mask, DB, ADODB;
type
  TForm2 = class(TForm)
    DataSource1: TDataSource;
    Label1: TLabel;
    Label2: TLabel;
    Label3: TLabel;
    Label4: TLabel;
    Label5: TLabel;
    Label6: TLabel;
    Label7: TLabel;
    Label9: TLabel;
    DBEdit1: TDBEdit;
    DBEdit2: TDBEdit;
    DBEdit3: TDBEdit;
    DBEdit4: TDBEdit;
    DBEdit5: TDBEdit;
    DBMemo1: TDBMemo;
    ADOTable1: TADOTable;
    DBComboBox1: TDBComboBox;
    Button1: TButton;
    Button2: TButton;
    Button3: TButton;
    Button4: TButton;
    Button5: TButton;
    Button6: TButton;
    Button7: TButton;
    Button8: TButton;
    Button9: TButton;
    procedure FormCreate(Sender: TObject);
    procedure Button1Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
    procedure Button3Click(Sender: TObject);
    procedure Button4Click(Sender: TObject);
    procedure Button5Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;
var
  Form2: TForm2;
implementation
{$R *.dfm}
procedure TForm2.FormCreate(Sender: TObject);
begin
adotable1.Open;
end;
procedure TForm2.Button1Click(Sender: TObject);
begin
adotable1.Prior;
if adotable1.Bof then
  adotable1.Last;
end;
procedure TForm2.Button2Click(Sender: TObject);
begin
adotable1.Next;
if adotable1.Eof then
  adotable1.Last;
end;
procedure TForm2.Button3Click(Sender: TObject);
begin
adotable1.First;
end;
procedure TForm2.Button4Click(Sender: TObject);
begin
adotable1.Last;
end;
procedure TForm2.Button5Click(Sender: TObject);
begin
adotable1.Append;
button6.Enabled := true;
button5.Enabled := false;
button7.Enabled := true;
end;
end.不知为什么form2.show;报错了
[Pascal Error] student.pas(1): Unable to invoke Code Completion due to errors in source code