On Sep 20, 2010, at 11:06 AM, ico wrote: > NSInvocationOperation *theOp = [[[NSInvocationOperation alloc] > initWithTarget:dp selector:@selector(massiveWork:) object:nil] autorelease];
The selector here is "massiveWork:" with a colon. > - (void) massiveWork { The selector for this method is "massiveWork" with no colon. Those are not the same. You are trying to construct an NSInvocationOperation to invoke a method which doesn't exist, probably. Regards, Ken _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com