[Pyobjc-dev] Possible bug in PyObjC bridge (SyncService)

[Mani G. <ma...@tu...>]

Hello,

Users of my app have been complaining of the following error:

ValueError: NSInvalidArgumentException - *** -encodeInt:forKey: only
defined for abstract class.  Define -[NSArchiver encodeInt:forKey:]!

It occurs in the following line of code:

session.prepareToPullChangesForEntityNames_beforeDate_(entityNames,
NSDate.distantFuture())

Where "session" is an ISyncSession object
(http://developer.apple.com/mac/library/documentation/cocoa/Reference/SyncServicesFramework/Classes/ISyncSession_Class/Reference/Reference.html#//apple_ref/occ/cl/ISyncSession),
and "entityNames" is a Python list of strings.

Most of the time, for most users, this problem does not happen. But it
seems like, for some people a different code path is being executed
under the hood of SyncServices and this is happening.

Not much to start with, but I am here to provide any more information
as needed.

This is a very serious issue for our user base and hopefully someone
will be able to shed light on the issue, if it is indeed a PyObjC
bridge matter.

Thanks very much!
Mani