CRUD create error for openconfig-interfaces.yang

[psykokwak4]

Snippet:

        auto interfaces = std::make_unique<openconfig_interfaces::Interfaces>();
        auto interfaces_interface = std::make_unique<openconfig_interfaces::Interfaces::Interface>();
        interfaces_interface->parent = interfaces.get();
        interfaces->interface.emplace_back(std::move(interfaces_interface));
        interfaces->interface[0]->config->name = R"(s)";
        interfaces->interface[0]->ethernet->config->auto_negotiate = true;
        interfaces->interface[0]->ethernet->config->duplex_mode = openconfig_interfaces::Interfaces::Interface::Ethernet::Config::DuplexModeEnum::HALF;
        interfaces->interface[0]->ethernet->config->enable_flow_control = false;
        interfaces->interface[0]->ethernet->config->mac_address = R"(17:be:ad:55:5a:73)";
        interfaces->interface[0]->ethernet->config->port_speed = openconfig_if_ethernet::Speed_50GbIdentity();
        interfaces->interface[0]->name = R"(J)";
        interfaces->interface[0]->name = interfaces->interface[0]->config->name.get();
        interfaces->interface[0]->ethernet->config->aggregate_id = interfaces->interface[0]->name.get();

Traceback:

[2017-01-03 11:24:38.571474] [0x00007fffc30cf3c0] [trace]   Creating child aggregate-id of /openconfig-interfaces:interfaces/interface[name='s']/openconfig-if-ethernet:ethernet/config with value: "s", is_set: true
[2017-01-03 11:24:38.571484] [0x00007fffc30cf3c0] [trace]   Current path: /openconfig-if-ethernet:/openconfig-interfaces:interfaces/openconfig-interfaces:interface/ethernet-top/ethernet/config
[2017-01-03 11:24:38.571488] [0x00007fffc30cf3c0] [trace]   Top container path: openconfig-interfaces:interfaces
[2017-01-03 11:24:38.571501] [0x00007fffc30cf3c0] [trace]   Getting child schema with path 'aggregate-id' in config
[2017-01-03 11:24:38.571517] [0x00007fffc30cf3c0] [error]   Libyang ERROR: Schema node not found. Path: 'aggregate-id'
[2017-01-03 11:24:38.571525] [0x00007fffc30cf3c0] [trace]   Creating new data path 'aggregate-id', with value 's' in 'config'
[2017-01-03 11:24:38.571534] [0x00007fffc30cf3c0] [error]   Libyang ERROR: Schema node not found. Path: 'aggregate-id'
[2017-01-03 11:24:38.571539] [0x00007fffc30cf3c0] [error]   Invalid path: aggregate-id
[2017-01-03 11:24:38.571952] [0x00007fffc30cf3c0] [debug]   Disconnected from device
/Users/saber/Cisco/xiaoqinz/gen-api/cpp/ydk/src/path/data_node.cpp:220: fatal error: in "virtual ydk::path::DataNode *ydk::path::DataNodeImpl::create_helper(const std::string &, const std::string &, bool)": boost::exception_detail::clone_impl<ydk::YCPPModelError>: Invalid path: aggregate-id
/Users/saber/Cisco/cisco-devnet/gen-api/cpp/openconfig-bundle/ydk/tests/test_openconfig_interfaces.cpp:127: last checkpoint: "interfaces_interface_ethernet_config_test" entry.