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    Delphi Error – E2561 Specified options for $EXTERNALSYM and $NODEFINE are not allowed for ‘%s’; only global and non-alias type symbol

    admin November 17, 2022 No Comments

    Delphi Compiler Error

    E2561 Specified options for $EXTERNALSYM and $NODEFINE are not allowed for ‘%s’; only global and non-alias type symbol

    Reason for the Error & Solution

    This occurs when declaring a local alias as either $EXTERNALSYM or $NODEFINE. 

    program E2561;

{$APPTYPE CONSOLE}

uses
  SysUtils;

type
  TAlias1 = TObject;
  {$NODEFINE TAlias1 'sss'} //E2561

  TAlias2 = TObject;
  {$EXTERNALSYM TAlias2 'sss'} //E2561

begin

end.

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