realm报错出现这个问题，如果不是Realm对象使用不一致的话，一般是realm对象跨线程使用了，这时候只需要使用-[RLMRealm resolveThreadSafeReference:]就可以了(realm官方文档例子)：
Person *person = [Person new];
person.name = @"Jane";
[realm transactionWithBlock:^{
[realm addObject:person];
}];
RLMThreadSafeReference *personRef = [RLMThreadSafeReference
referenceWithThreadConfined:person];
dispatch_async(queue, ^{
@autoreleasepool {
RLMRealm *realm = [RLMRealm realmWithConfiguration:realm.configuration
error:nil];
Person *person = [realm resolveThreadSafeReference:personRef];
if (!person) {
return; // person was deleted
}
[realm transactionWithBlock:^{
person.name = @"Jane Doe";
}];
}
});
