问ios获取群组资料崩溃？

代码：

NSMutableArray * groupList = [[NSMutableArray alloc] init];

[groupList addObject:group];

[[TIMGroupManager sharedInstance] getGroupInfo:groupList succ:^(NSArray * groups) {

for (TIMGroupInfo * info in groups) {

NSLog(@"get group succ, infos=%@", info);

}

} fail:^(int code, NSString* err) {

NSLog(@"failed code: %d %@", code, err);

}];

栈

* thread #23, queue = 'com.tencent.imsdk_5', stop reason = EXC_BAD_ACCESS (code=1, address=0x0)

* frame #0: 0x000000010eba90ff TaoBoLive`void _t_::_p_::internal::RepeatedPtrFieldBase::Destroy<_t_::_p_::RepeatedPtrField<group_open::app_defined_data::GroupOpenAppDefinedData>::TypeHandler>() + 23

frame #1: 0x000000010eb9f0ec TaoBoLive`tencent::im::im_service::get_group_info::GroupBaseInfo::~GroupBaseInfo() + 36

frame #2: 0x000000010eb9f236 TaoBoLive`tencent::im::im_service::get_group_info::GroupBaseInfo::~GroupBaseInfo() + 14

frame #3: 0x000000010eba162f TaoBoLive`tencent::im::im_service::get_group_info::ReqBody_SubCmd0x1GetGroupInfoReqBody::~ReqBody_SubCmd0x1GetGroupInfoReqBody() + 43

frame #4: 0x000000010eba165e TaoBoLive`tencent::im::im_service::get_group_info::ReqBody_SubCmd0x1GetGroupInfoReqBody::~ReqBody_SubCmd0x1GetGroupInfoReqBody() + 14

frame #5: 0x000000010eba4a01 TaoBoLive`tencent::im::im_service::get_group_info::ReqBody::SharedDtor() + 33

frame #6: 0x000000010eba4a72 TaoBoLive`tencent::im::im_service::get_group_info::ReqBody::~ReqBody() + 24

frame #7: 0x000000010e76c505 TaoBoLive`imcore::GroupGetGroupInfoTask::~GroupGetGroupInfoTask() + 299

frame #8: 0x000000010e76b5c0 TaoBoLive`imcore::GroupGetGroupInfoTask::~GroupGetGroupInfoTask() + 14

frame #9: 0x000000010e75ad39 TaoBoLive`imcore::GroupGetGroupInfoTask::run() + 6943

frame #10: 0x000000010ebb724c TaoBoLive`imcore::TaskQueue::RunLoop() + 152

frame #11: 0x000000010ea4dd98 TaoBoLive`___ZN6IOSEnv12CreateThreadEPN6imcore11ThreadEntryE_block_invoke + 19

frame #12: 0x000000011a52b2f7 libdispatch.dylib`_dispatch_call_block_and_release + 12

frame #13: 0x000000011a52c33d libdispatch.dylib`_dispatch_client_callout + 8

frame #14: 0x000000011a534855 libdispatch.dylib`_dispatch_queue_serial_drain + 1162

frame #15: 0x000000011a5351ea libdispatch.dylib`_dispatch_queue_invoke + 336

frame #16: 0x000000011a530f7c libdispatch.dylib`_dispatch_queue_override_invoke + 733

frame #17: 0x000000011a538102 libdispatch.dylib`_dispatch_root_queue_drain + 772

frame #18: 0x000000011a537da0 libdispatch.dylib`_dispatch_worker_thread3 + 132

frame #19: 0x000000011a9ee5a2 libsystem_pthread.dylib`_pthread_wqthread + 1299

frame #20: 0x000000011a9ee07d libsystem_pthread.dylib`start_wqthread + 13