Delphi Error – E2545 Cannot publish class property ‘%s’ – only instance properties can be published

Delphi Compiler Error

E2545 Cannot publish class property ‘%s’ – only instance properties can be published

Reason for the Error & Solution

This occurs when trying to use the published attribute with a class property.

program E2545;
{E2545 Cannot publish class property '%s' - only instance properties can be published}
{$APPTYPE CONSOLE}

uses
  SysUtils,
  TypInfo;

type
  TMyBaseClass = class
  class var
    aVal: string;
  published
    class property aProp: string write aVal;
  end;

begin
end.