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    Delphi Error – E2540 Cannot seal abstract type ‘%s’

    admin November 17, 2022 No Comments

    Delphi Compiler Error

    E2540 Cannot seal abstract type ‘%s’

    Reason for the Error & Solution

    This occurs when declaring an abstract type as sealed. 

    program E2540;
{E2540 Cannot seal abstract type '%s'}
{$APPTYPE CONSOLE}

uses
  SysUtils,
  classes;

type
  TMyClass = class sealed
    procedure setArea; Virtual; Abstract; //E2540
  end;

begin

end.

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