Fejl [Fatal Error] Haerderi.dpr(11): File not found: 'Unit1.dcu'

Hvad er der galt her når jeg får denne fejl

[Fatal Error] Haerderi.dpr(11): File not found: 'Unit1.dcu'

i denne kode


program Haerderi;

uses
  Forms,
  Hovedemenu in 'Hovedemenu.pas' {FrmHovedemenu},
  Adresse in 'Adresse.pas' {FrmAdresse},
  Data in 'Data.pas' {DataModule1: TDataModule},
  Rekvirent in 'Rekvirent.pas' {FrmRekvirent},
  materiale in 'materiale.pas' {FrmMateriale},
  Haerdenorm in 'Haerdenorm.pas' {FrmHaerdeform},
  Indstilling in 'Indstilling.pas' {FrmIndstilling};

{$R *.res}

begin
  Application.Initialize;
  Application.CreateForm(TFrmHovedemenu, FrmHovedemenu);
  Application.CreateForm(TFrmAdresse, FrmAdresse);
  Application.CreateForm(TDataModule1, DataModule1);
  Application.CreateForm(TFrmRekvirent, FrmRekvirent);
  Application.CreateForm(TFrmMateriale, FrmMateriale);
  Application.CreateForm(TFrmHaerdeform, FrmHaerdeform);
  Application.CreateForm(TFrmIndstilling, FrmIndstilling);
  Application.Run;
end.