小编ven*_*par的帖子

嗨,我崩溃了,

当我试图在背景中向数据库插入1000条记录时,我得到以下异常: CoreData: error: Serious application error.在Core Data更改处理期间捕获到异常.
这通常是观察者中的一个错误

NSManagedObjectContextObjectsDidChangeNotification. -[__NSCFSet addObject:]: attempt to insert nil with userInfo (null)2013-11-19 09:41:19.587 3pTalk[7487:907]

Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[__NSCFSet addObject:]: attempt to insert nil'

我用代码插入了objexts

dispatch_queue_t myBackgroundQ = dispatch_queue_create("com.sample.addressbook", NULL);
// Could also get a global queue; in this case, don't release it below.
dispatch_time_t delay = dispatch_time(DISPATCH_TIME_NOW, NSEC_PER_SEC);
dispatch_after(delay, myBackgroundQ, ^(void){
    [self userAddressbook];
});
dispatch_release(myBackgroundQ);
[self performSelectorOnMainThread:@selector(startSyncLoader) withObject:nil waitUntilDone:YES];