E2508 type parameters not allowed on this type (Delphi)

Go Up to Error and Warning Messages (Delphi)

When using class references, you cannot use generic classes directly. You need to use a wrapper class to be able to use generics.

program E2508;

{$APPTYPE CONSOLE}

uses
  SysUtils;

type
  TMyClass = class
  end;
  TMyClassClass<T> = class of TMyClass;

begin
   Writeln('FAIL - E2508 type parameters not allowed on this type');
end.