我正在将项目从Delphi 7迁移到Delphi XE3。它工作正常，但在结构面板中，它显示错误列表：
TStringField does not contain a member named AsString
TClientDataSet does not contain a member named CreateDataSet
TList does not contain a member named Add
TToolBar does not contain a member named SetFocus
Undeclared identifier Refresh
Undeclared identifier Handle
TClientDataSet does not contain a member named Post
TPanel does not contain a member named Visible
string does not contain a member named length
string does not contain a member named IndexOf