On 28 ao?t, 17:39, "Jano Svitok" <jan.svi... / gmail.com> wrote:

>
> Just a blind guess: yaml doesn't know how to (de)serialize binary data
> for/from RubyCocoa extension. I guess Data type means binary data that
> is opaque to ruby.
> __slave_nsobj__ is a member attribute of Folder.


in fact, i'm using severall Folders BUT it is only the outermost
staying with this "__slave_nsobj__" i've carefully verified that my
Folder class doesn't use anymore NSSomething...

as for example NSString, i've make use of something.to_s to avoid
NSString