# Gazebo offboard INFO notify negative **URL:** \ **Category:** ROS 1 / ROS 2\ **Created:** [October 22, 2021, 12:59pm UTC](https://discuss.px4.io/t/gazebo-offboard-info-notify-negative/24664 "2021-10-22T12:59:12Z")\ **Posts on this page:** 1\ **Page:** 1
**Author:** ![subarashi](https://discuss.px4.io/user_avatar/discuss.px4.io/subarashi/32/6769_2.png) [@subarashi](https://discuss.px4.io/u/subarashi)\ **Post date:** [October 22, 2021, 12:59pm UTC](https://discuss.px4.io/t/gazebo-offboard-info-notify-negative/24664/1 "2021-10-22T12:59:12Z")
Hello guys! Ubuntu 18.04 Ros Melodic I am running mavros to connect ros-gazebo-iris-drone with ros-melodic so I can run the offboard simulation. I have been able to do i many times but today I got this error > [0/4] Performing build step for ‘sitl\_gazebo’ > ninja: no work to do. > [3/4] cd /home/diego/PX4-Autopilot/build/px4\_sitl… /home/diego/PX4-Autopilot/build/px4\_sitl\_default > SITL ARGS > sitl\_bin: /home/diego/PX4-Autopilot/build/px4\_sitl\_default/bin/px4 > debugger: none > program: gazebo > model: none > world: none > src\_path: /home/diego/PX4-Autopilot > build\_path: /home/diego/PX4-Autopilot/build/px4\_sitl\_default > empty model, setting iris as default > GAZEBO\_PLUGIN\_PATH :/home/diego/PX4-Autopilot/build/px4\_sitl\_default/build\_gazebo > GAZEBO\_MODEL\_PATH :/home/diego/PX4-Autopilot/Tools/sitl\_gazebo/models > LD\_LIBRARY\_PATH :/home/diego/PX4-Autopilot/build/px4\_sitl\_default/build\_gazebo > empty world, setting empty.world as default > Using: /home/diego/PX4-Autopilot/Tools/sitl\_gazebo/models/iris/iris.sdf > SITL COMMAND: “/home/diego/PX4-Autopilot/build/px4\_sitl\_default/bin/px4” “/home/diego/PX4-Autopilot/build/px4\_sitl\_default”/etc -s etc/init.d-posix/rcS -t “/home/diego/PX4-Autopilot”/test\_data > Creating symlink /home/diego/PX4-Autopilot/build/px4\_sitl\_default/etc → /home/diego/PX4-Autopilot/build/px4\_sitl\_defau > > e[0\_\_\_\_\_\_ \_\_ \_\_ \_\_\_ > | \_\_\_ \ \ \ / / / | > | |_/ / \ V / / /| | > | \_\_/ / \ / /_| | > | | / /^\ \ \_\_\_ | > \_| / / |\_/ > > px4 starting. > > INFO [px4] Calling startup script: /bin/sh etc/init.d-posix/rcS 0 > INFO [init] found model autostart file as SYS\_AUTOSTART=10016 > INFO [param] selected parameter default file eeprom/parameters\_10016 > INFO [parameters] BSON document size 606 bytes, decoded 606 bytes > [param] Loaded: eeprom/parameters\_10016 > INFO [dataman] Unknown restart, data manager file ‘./dataman’ size is 11798680 bytes > PX4 SIM HOST: localhost > INFO [simulator] Waiting for simulator to accept connection on TCP port 4560 > INFO [simulator] Simulator connected on TCP port 4560. > Gazebo multi-robot simulator, version 9.0.0 > Copyright (C) 2012 Open Source Robotics Foundation. > Released under the Apache 2 License. > [http://gazebosim.org](http://gazebosim.org) > > [Msg] Waiting for master. > [Msg] Connected to gazebo master @ [http://127.0.0.1:11345](http://127.0.0.1:11345) > [Msg] Publicized address: 192.168.1.206 > INFO [commander] LED: open /dev/led0 failed (22) > INFO [init] Mixer: etc/mixers/quad\_w.main.mix on /dev/pwm\_output0 > INFO [mavlink] mode: Normal, data rate: 4000000 B/s on udp port 18570 remote port 14550 > [Wrn] [GuiIface.cc:120] QStandardPaths: XDG\_RUNTIME\_DIR not set, defaulting to ‘/tmp/runtime-root’ > INFO [mavlink] mode: Onboard, data rate: 4000000 B/s on udp port 14580 remote port 14540 > INFO [mavlink] mode: Onboard, data rate: 4000 B/s on udp port 14280 remote port 14030 > INFO [mavlink] mode: Gimbal, data rate: 400000 B/s on udp port 13030 remote port 13280 > INFO [logger] logger started (mode=all) > INFO [logger] Start file log (type: full) > INFO [logger] [logger] ./log/2021-10-22/12\_43\_16.ulg > INFO [logger] Opened full log file: ./log/2021-10-22/12\_43\_16.ulg > INFO [mavlink] MAVLink only on localhost (set param MAV\_{i}_BROADCAST = 1 to enable network) > INFO [mavlink] MAVLink only on localhost (set param MAV_{i}\_BROADCAST = 1 to enable network) > INFO [px4] Startup script returned successfully > pxh\> [Err] [InsertModelWidget.cc:405] Missing model.config for model “/home/diego/PX4-Autopilot/Tools/sitl\_gazebo/models/custom\_husky” > INFO [mavlink] partner IP: 127.0.0.1 > [Wrn] [Event.cc:61] Warning: Deleting a connection right after creation. Make sure to save the ConnectionPtr from a Connect call > [Err] [ModelDatabase.cc:390] Unable to parse model.config for model[[Gazebo](http://gazebosim.org/models/bin_4_dropping_task)] > INFO [tone\_alarm] home set > INFO [tone\_alarm] notify negative > INFO [mavlink] partner IP: 127.0.0.1 > INFO [tone\_alarm] notify negative > INFO [tone\_alarm] notify negative > INFO [tone\_alarm] notify negative > INFO [tone\_alarm] notify negative > INFO [tone\_alarm] notify negative > INFO [tone\_alarm] notify negative > INFO [tone\_alarm] notify negative > INFO [tone\_alarm] notify negative > INFO [tone\_alarm] notify negative > INFO [tone\_alarm] notify negative > INFO [tone\_alarm] notify negative > INFO [tone\_alarm] notify negative How can I know from where this error is coming?