Ohh right, thanks Yanni for the clarification. I was beggining at believe that I 'm crazy, becouse I remembered that some weeks ago I had to load the wrapper in a 1.3 image, and yes, the difference was that it was core :)

2012/1/18 Yanni Chiu <yanni@rogers.com>

On 17/01/12 4:45 PM, Gast�n Dall' Oglio wrote:

mmm, in 1.3 its work, I try with the incorrect 1.3 image....
Sorry for the noise.

I tried it in PharoCore-1.3, and found ObjectAsMethodWrapper was missing there. When I used Pharo-1.3 (non-core), it worked as advertised.