MTK errorL6218E

[yaoliwon]

Error: L6218E: Undefined symbol mmi_bt_ftps_setting_highlight_hdlr (referred from events.obj).
Error: L6218E: Undefined symbol mmi_bt_ftps_access_right_highlight_hdlr (referred from events.obj).
Error: L6218E: Undefined symbol mmi_bt_ftps_access_right_hint (referred from events.obj).
Error: L6218E: Undefined symbol mmi_bt_ftpc_get_storage_drive (referred from btmmiftp.obj).
Error: L6218E: Undefined symbol mmi_bt_ftpc_get_current_file_name (referred from btmmiftp.obj).
Error: L6218E: Undefined symbol mmi_bt_ftps_reset_clear_scrs (referred from btmmiftp.obj).
Error: L6218E: Undefined symbol mmi_bt_ftpc_reset_clear_scrs (referred from btmmiftp.obj).
Error: L6218E: Undefined symbol mmi_bt_ftpc_disconnect_clear_scrs (referred from btmmiftp.obj).
Error: L6218E: Undefined symbol mmi_bt_ftp_popup_hdlr (referred from btmmiftp.obj).
Error: L6218E: Undefined symbol mmi_bt_ftps_notify_disconnected (referred from btmmiftp.obj).
Error: L6218E: Undefined symbol mmi_bt_ftpc_notify_recv_err (referred from btmmiftp.obj).
Error: L6218E: Undefined symbol mmi_bt_ftpc_clear_abort_scr (referred from btmmiftp.obj).
Error: L6218E: Undefined symbol mmi_bt_ftpc_AddHistory (referred from btmmiftp.obj).
Error: L6218E: Undefined symbol g_mmi_bt_ftp_scr_cntx_p (referred from btmmiftp.obj).
Error: L6218E: Undefined symbol mmi_bt_ftpc_goback2history (referred from btmmiftp.obj).
Error: L6218E: Undefined symbol mmi_bt_ftps_auth_scr_hdlr (referred from btmmiftp.obj).
Error: L6218E: Undefined symbol mmi_bt_ftpc_entry_connect_scr (referred from btmmiftp.obj).
Error: L6218E: Undefined symbol mmi_bt_ftpc_del_scr (referred from btmmiftp.obj).
Error: L6218E: Undefined symbol mmi_bt_ftpc_obj_receive_ind (referred from btmmiftp.obj).
Error: L6218E: Undefined symbol mmi_bt_ftpc_get_next_file (referred from btmmiftp.obj).
Error: L6218E: Undefined symbol mmi_bt_ftpc_parse_folder_fail (referred from btmmiftp.obj).
Error: L6218E: Undefined symbol mmi_bt_ftpc_entry_file_browser (referred from btmmiftp.obj).
Error: L6218E: Undefined symbol mmi_bt_ftpc_browser_history_replace (referred from btmmiftp.obj).
Error: L6218E: Undefined symbol mmi_bt_ftps_popup (referred from btmmiftp.obj).
Not enough information to produce a SYMDEFs file.
Not enough information to list image symbols.
Not enough information to list the image map.
Not enough information to list the image sizes and/or totals.
Finished: 4 information, 2 warning and 24 error messages.
请教各位高手，该怎么解决这些错误？