add

internal/rpc/user/user.go

@@ -318,6 +318,7 @@ func (s *userServer) SetRecvMsgOpt(ctx context.Context, req *pbUser.SetRecvMsgOp
 		log.NewError(req.OperationID, utils.GetSelfFuncName(), "SetConversation error", err.Error())
 		resp.CommonResp = &pbUser.CommonResp{ErrCode: constant.ErrDB.ErrCode, ErrMsg: constant.ErrDB.ErrMsg}
 		return resp, nil
+	}
 	if err = rocksCache.DelConversationFromCache(conversation.OwnerUserID, conversation.ConversationID); err != nil {
 		log.NewError(req.OperationID, utils.GetSelfFuncName(), conversation.ConversationID, err.Error())
 	}