代码如下:-(void)willTurnIntoFault{NSManagedObject*relatedObject=self.relatedObject;if(relatedObject!=nil&&!relatedObject.isFault&&!relatedObject.hasChanges){[relatedObject.managedObjectContextrefreshObject:relatedObjectmergeChanges:NO];}[superwillTurnIntoFault];}这是崩溃:ApplicationSpecificInformation:*