IDE Delphi XE3 Errors in structure

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I'm migrating a project from Delphi 7 to Delphi XE3. It works correctly, however in the structure panel, it shows a list of errors:

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
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