- ☝️ Check my Google Docs
🟢ROSLaunch that Gazebo world that I created via udacity_office.launch.
✅ It’s probably due to insufficient memory. I have migrated the whole course repos to local windows 11, wsl2, ubuntu 20.04, ros, gazebo 11 (classic). Originally i was using VMWare with the ubuntu 16.04 image.
VMware: vmw_ioctl_command error Cannot allocate memory.
Aborted (core dumped)
[gazebo_gui-3] process has diedobond@udacity:~/catkin_ws$ roslaunch my_robot udacity_office.launch
... logging to /home/robond/.ros/log/fc58a24c-efb7-11ef-ac2e-000c29b977f9/roslaunch-udacity-6115.log
Checking log directory for disk usage. This may take awhile.
Press Ctrl-C to interrupt
Done checking log file disk usage. Usage is <1GB.
started roslaunch server http://192.168.146.128:33359/
SUMMARY
========
PARAMETERS
* /joint_state_publisher/use_gui: False
* /robot_description: <?xml version="1....
* /rosdistro: kinetic
* /rosversion: 1.12.7
* /use_sim_time: True
NODES
/
gazebo (gazebo_ros/gzserver)
gazebo_gui (gazebo_ros/gzclient)
joint_state_publisher (joint_state_publisher/joint_state_publisher)
robot_state_publisher (robot_state_publisher/robot_state_publisher)
rviz (rviz/rviz)
urdf_spawner (gazebo_ros/spawn_model)
auto-starting new master
process[master]: started with pid [6131]
ROS_MASTER_URI=http://localhost:11311
setting /run_id to fc58a24c-efb7-11ef-ac2e-000c29b977f9
process[rosout-1]: started with pid [6144]
started core service [/rosout]
process[gazebo-2]: started with pid [6147]
process[gazebo_gui-3]: started with pid [6153]
process[joint_state_publisher-4]: started with pid [6178]
process[robot_state_publisher-5]: started with pid [6179]
process[urdf_spawner-6]: started with pid [6180]
process[rviz-7]: started with pid [6181]
SpawnModel script started
[ INFO] [1740075897.463273383]: Finished loading Gazebo ROS API Plugin.
[ INFO] [1740075897.464587612]: waitForService: Service [/gazebo/set_physics_properties] has not been advertised, waiting...
[INFO] [1740075897.525276, 0.000000]: Loading model XML from ros parameter
[INFO] [1740075897.528256, 0.000000]: Waiting for service /gazebo/spawn_urdf_model
[INFO] [1740075898.134898, 0.000000]: Calling service /gazebo/spawn_urdf_model
[INFO] [1740075898.180367, 0.000000]: Spawn status: SpawnModel: Entity pushed to spawn queue, but spawn service timed out waiting for entity to appear in simulation under the name udacity_office_my_robot
[urdf_spawner-6] process has finished cleanly
log file: /home/robond/.ros/log/fc58a24c-efb7-11ef-ac2e-000c29b977f9/urdf_spawner-6*.log
[ INFO] [1740075898.516658742, 1549.348000000]: Camera Plugin: Using the 'robotNamespace' param: '/'
[ INFO] [1740075898.530733224, 1549.348000000]: Laser Plugin: Using the 'robotNamespace' param: '/'
[ INFO] [1740075898.531429882, 1549.348000000]: Starting Laser Plugin (ns = /)
[ INFO] [1740075898.535874445, 1549.348000000]: Camera Plugin (ns = /) <tf_prefix_>, set to ""
[ INFO] [1740075898.552923307, 1549.348000000]: Laser Plugin (ns = /) <tf_prefix_>, set to ""
[ INFO] [1740075898.641781446, 1549.348000000]: Starting plugin DiffDrive(ns = //)
[ INFO] [1740075898.641935340, 1549.348000000]: DiffDrive(ns = //): <rosDebugLevel> = na
[ INFO] [1740075898.643362848, 1549.348000000]: DiffDrive(ns = //): <tf_prefix> =
[ INFO] [1740075898.644614865, 1549.348000000]: DiffDrive(ns = //): Try to subscribe to cmd_vel
[ INFO] [1740075898.647578356, 1549.348000000]: DiffDrive(ns = //): Subscribe to cmd_vel
[ INFO] [1740075898.648702679, 1549.348000000]: DiffDrive(ns = //): Advertise odom on odom
[ INFO] [1740075898.659440552, 1549.353000000]: waitForService: Service [/gazebo/set_physics_properties] is now available.
[ INFO] [1740075898.723666300, 1549.378000000]: Physics dynamic reconfigure ready.
VMware: vmw_ioctl_command error Cannot allocate memory.
Aborted (core dumped)
[gazebo_gui-3] process has died [pid 6153, exit code 134, cmd /opt/ros/kinetic/lib/gazebo_ros/gzclient __name:=gazebo_gui __log:=/home/robond/.ros/log/fc58a24c-efb7-11ef-ac2e-000c29b977f9/gazebo_gui-3.log].
log file: /home/robond/.ros/log/fc58a24c-efb7-11ef-ac2e-000c29b977f9/gazebo_gui-3*.log
[rviz-7] process has finished cleanly
log file: /home/robond/.ros/log/fc58a24c-efb7-11ef-ac2e-000c29b977f9/rviz-7*.log
^C[robot_state_publisher-5] killing on exit
[joint_state_publisher-4] killing on exit
[gazebo-2] killing on exit
[gazebo-2] escalating to SIGTERM
[rosout-1] killing on exit
[master] killing on exit
shutting down processing monitor...
... shutting down processing monitor complete
done
robond@udacity:~/catkin_ws$ cat /home/robond/.ros/log/fc58a24c-efb7-11ef-ac2e-000c29b977f9/urdf_spawner-6*.log
[rospy.client][INFO] 2025-02-20 10:24:57,418: init_node, name[/urdf_spawner], pid[6180]
[xmlrpc][INFO] 2025-02-20 10:24:57,419: XML-RPC server binding to 0.0.0.0:0
[xmlrpc][INFO] 2025-02-20 10:24:57,419: Started XML-RPC server [http://192.168.146.128:33187/]
[rospy.impl.masterslave][INFO] 2025-02-20 10:24:57,419: _ready: http://192.168.146.128:33187/
[rospy.init][INFO] 2025-02-20 10:24:57,419: ROS Slave URI: [http://192.168.146.128:33187/]
[rospy.registration][INFO] 2025-02-20 10:24:57,419: Registering with master node http://localhost:11311
[xmlrpc][INFO] 2025-02-20 10:24:57,420: xml rpc node: starting XML-RPC server
[rospy.init][INFO] 2025-02-20 10:24:57,519: registered with master
[rospy.rosout][INFO] 2025-02-20 10:24:57,520: initializing /rosout core topic
[rospy.rosout][INFO] 2025-02-20 10:24:57,521: connected to core topic /rosout
[rospy.simtime][INFO] 2025-02-20 10:24:57,522: initializing /clock core topic
[rospy.simtime][INFO] 2025-02-20 10:24:57,523: connected to core topic /clock
[rosout][INFO] 2025-02-20 10:24:57,525: Loading model XML from ros parameter
[rosout][INFO] 2025-02-20 10:24:57,528: Waiting for service /gazebo/spawn_urdf_model
[rospy.internal][INFO] 2025-02-20 10:24:57,779: topic[/rosout] adding connection to [/rosout], count 0
[rosout][INFO] 2025-02-20 10:24:58,134: Calling service /gazebo/spawn_urdf_model
[rosout][INFO] 2025-02-20 10:24:58,180: Spawn status: SpawnModel: Entity pushed to spawn queue, but spawn service timed out waiting for entity to appear in simulation under the name udacity_office_my_robot
[rospy.core][INFO] 2025-02-20 10:24:58,180: signal_shutdown [atexit]
[rospy.internal][INFO] 2025-02-20 10:24:58,183: topic[/rosout] removing connection to /rosout
[rospy.impl.masterslave][INFO] 2025-02-20 10:24:58,184: atexit
These packages be cloned from https://github.com/ros-perception/vision_opencv. However, they have to be modified to fit to our use, if not there will be compile errors. For ROS Melodic, use the noetic branch and change python dependencies in CMakeLists.txt, or use the melodic branch and change some function headers (https://cyaninfinite.com/ros-cv-bridge-with-python-3/).