Undeclared identifier: 'EOpenComm'. ====
====>참조 : on EOpenComm do

Undeclared identifier: 'TComSelectForm' ====
====>참조 : ComFrm := TComSelectForm.Create(Self);

missing operator or semicolon. ====
====>참조 : ComFrm := TComSelectForm.Create(Self); 라인의 Error

Undeclared identifier: 'ValidComPort'====
====>참조 : if not ComFrm.ValidComPort(I) then

Undeclared identifier: 'ShowModal'====
====>참조 : if (ComFrm.ShowModal = mrOK) then

Undeclared identifier: 'SelectedCom'====
====>참조 : Com               := ComFrm.SelectedCom;

Undeclared identifier: 'WritePortOptions'====
====>참조 : WritePortOptions;

해결좀 해주세요.
다른 변수들은 잡은것 같은데 혹시 모르니 변수들의 type도 알려주세요.
뭘 잘못했을까요. 소스 그대로 실행을 했는데.......