custom plugins causing ignition fortress gazebo6 to fail to load world

[Sebastian-Schroder]

I have created a forum post with relevant information. but I've put the most pressing info here.

Environment

• OS Version: 22.04
• Source or binary build? binary ignition fortress

Description

• Expected behavior: building and running the example system plugin causes gazebo to fail to load and hang on a blank screen
• Actual behavior: gazebo should load the selected world and run the plugins alongside it

Steps to reproduce

1. install gazebo fortress
2. git clone https://github.com/gazebosim/gz-sim.git -b ign-gazebo-5
3. cd gz-sim/examples/plugin/system_plugin
4. update CMakeList.txt by swapping calls from ignition-gazebo5 to ignition gazebo6
5. update sample_system.sdf to include a model i just added an include tag linking to a fuel model. <include><uri>https://fuel.ignitionrobotics.org/1.0/OpenRobotics/models/Ground Plane</uri></include>
6. mkdir build && cd build && cmake .. && make
7. add build folder to environment variable IGN_GAZEBO_SYSTEM_PLUGIN_PATH
8. and finally run the sample system cd .. && ign gazebo sample_system.sdf

notes:

• I cloned the ign-gazebo5 branch rather than the ign-gazebo6 despite having gazebo6 installed is because ign-gazebo6 was designed after the name change back to gazebo from ignition, so all the header files reference that naming scheme.

Output

When the plugins are commented out of the world, loading the world results in the following simulation

when the plugins are included. the world looks like this:

gazebo versions:

Verbose output when running with plugins:

[Msg] Ignition Gazebo GUI    v6.11.0
[Dbg] [ign.cc:161] Subscribing to [/gazebo/starting_world].
[Dbg] [ign.cc:163] Waiting for a world to be set from the GUI...
[Dbg] [Gui.cc:253] Waiting for subscribers to [/gazebo/starting_world]...
[Msg] Received world [sample_system.sdf] from the GUI.
[Dbg] [ign.cc:167] Unsubscribing from [/gazebo/starting_world].
[Msg] Ignition Gazebo Server v6.11.0
Warning: Ignoring XDG_SESSION_TYPE=wayland on Gnome. Use QT_QPA_PLATFORM=wayland to run on Wayland anyway.
[Msg] Loading SDF world file[/home/sperospace/Git/gz-sim/examples/plugin/system_plugin/sample_system.sdf].
[Dbg] [Application.cc:92] Initializing application.
[GUI] [Dbg] [Application.cc:555] Create main window
[Msg] Serving entity system service on [/entity/system/add]
[Dbg] [SystemManager.cc:58] Loaded system [sample_system::SampleSystem] for entity [1]
[Dbg] [SystemManager.cc:58] Loaded system [sample_system::SampleSystem2] for entity [1]
[Msg] Loaded level [3]
[Msg] Serving world controls on [/world/default/control], [/world/default/control/state] and [/world/default/playback/control]
[Msg] Serving GUI information on [/world/default/gui/info]
[Msg] World [default] initialized with [default_physics] physics profile.
[Msg] Serving world SDF generation service on [/world/default/generate_world_sdf]
[Msg] Serving world names on [/gazebo/worlds]
[Msg] Resource path add service on [/gazebo/resource_paths/add].
[Msg] Resource path get service on [/gazebo/resource_paths/get].
[Msg] Resource path resolve service on [/gazebo/resource_paths/resolve].
[Msg] Resource paths published on [/gazebo/resource_paths].
[Msg] Server control service on [/server_control].
[GUI] [Wrn] [Application.cc:797] [QT] qrc:/qml/StyleDialog.qml:112:3: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
[GUI] [Wrn] [Application.cc:797] [QT] qrc:/qml/StyleDialog.qml:105:3: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
[GUI] [Wrn] [Application.cc:797] [QT] qrc:/qml/StyleDialog.qml:98:3: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
[GUI] [Wrn] [Application.cc:797] [QT] qrc:qml/Main.qml:102:3: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
[GUI] [Wrn] [Application.cc:797] [QT] qrc:/qml/PluginMenu.qml:27:3: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
[GUI] [Dbg] [PathManager.cc:66] Requesting resource paths through [/gazebo/resource_paths/get]
[GUI] [Wrn] [Application.cc:797] [QT] file::/Gazebo/GazeboDrawer.qml:241:3: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
[GUI] [Wrn] [Application.cc:797] [QT] file::/Gazebo/GazeboDrawer.qml:147:3: QML Dialog: Binding loop detected for property "implicitHeight"
[GUI] [Wrn] [Application.cc:797] [QT] file::/Gazebo/GazeboDrawer.qml:147:3: QML Dialog: Binding loop detected for property "implicitHeight"
[GUI] [Dbg] [Gui.cc:333] GUI requesting list of world names. The server may be busy downloading resources. Please be patient.
[GUI] [Dbg] [PathManager.cc:55] Received resource paths.
[GUI] [Dbg] [Gui.cc:391] Requesting GUI from [/world/default/gui/info]...
[GUI] [Dbg] [GuiRunner.cc:145] Requesting initial state from [/world/default/state]...
[GUI] [Msg] Loading config [/home/sperospace/.ignition/gazebo/6/gui.config]
[GUI] [Dbg] [Application.cc:426] Loading plugin [MinimalScene]
[GUI] [Msg] Added plugin [3D View] to main window
[GUI] [Msg] Loaded plugin [MinimalScene] from path [/usr/lib/x86_64-linux-gnu/ign-gui-6/plugins/libMinimalScene.so]
[GUI] [Dbg] [Application.cc:426] Loading plugin [EntityContextMenuPlugin]
[GUI] [Wrn] [Application.cc:797] [QT] file::/EntityContextMenuPlugin/EntityContextMenuPlugin.qml:57:5: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
[GUI] [Wrn] [Application.cc:797] [QT] file::/EntityContextMenuPlugin/EntityContextMenuPlugin.qml:52:3: QML RenderWindowOverlay: Detected anchors on an item that is managed by a layout. This is undefined behavior; use Layout.alignment instead.
[GUI] [Wrn] [Application.cc:797] [QT] file::/EntityContextMenuPlugin/EntityContextMenuPlugin.qml:67:3: QML EntityContextMenu: Detected anchors on an item that is managed by a layout. This is undefined behavior; use Layout.alignment instead.
[GUI] [Wrn] [Application.cc:797] [QT] file::/EntityContextMenuPlugin/EntityContextMenuPlugin.qml:52:3: QML RenderWindowOverlay: Detected anchors on an item that is managed by a layout. This is undefined behavior; use Layout.alignment instead.
[GUI] [Wrn] [Application.cc:797] [QT] file::/EntityContextMenuPlugin/EntityContextMenuPlugin.qml:67:3: QML EntityContextMenu: Detected anchors on an item that is managed by a layout. This is undefined behavior; use Layout.alignment instead.
[GUI] [Wrn] [Application.cc:797] [QT] file::/EntityContextMenuPlugin/EntityContextMenuPlugin.qml:52:3: QML RenderWindowOverlay: Detected anchors on an item that is managed by a layout. This is undefined behavior; use Layout.alignment instead.
[GUI] [Wrn] [Application.cc:797] [QT] file::/EntityContextMenuPlugin/EntityContextMenuPlugin.qml:67:3: QML EntityContextMenu: Detected anchors on an item that is managed by a layout. This is undefined behavior; use Layout.alignment instead.
[GUI] [Wrn] [Application.cc:797] [QT] file::/EntityContextMenuPlugin/EntityContextMenuPlugin.qml:52:3: QML RenderWindowOverlay: Detected anchors on an item that is managed by a layout. This is undefined behavior; use Layout.alignment instead.
[GUI] [Wrn] [Application.cc:797] [QT] file::/EntityContextMenuPlugin/EntityContextMenuPlugin.qml:67:3: QML EntityContextMenu: Detected anchors on an item that is managed by a layout. This is undefined behavior; use Layout.alignment instead.
[GUI] [Wrn] [Application.cc:797] [QT] file::/EntityContextMenuPlugin/EntityContextMenuPlugin.qml:52:3: QML RenderWindowOverlay: Detected anchors on an item that is managed by a layout. This is undefined behavior; use Layout.alignment instead.
[GUI] [Wrn] [Application.cc:797] [QT] file::/EntityContextMenuPlugin/EntityContextMenuPlugin.qml:67:3: QML EntityContextMenu: Detected anchors on an item that is managed by a layout. This is undefined behavior; use Layout.alignment instead.
[GUI] [Wrn] [Application.cc:797] [QT] file::/EntityContextMenuPlugin/EntityContextMenuPlugin.qml:52:3: QML RenderWindowOverlay: Detected anchors on an item that is managed by a layout. This is undefined behavior; use Layout.alignment instead.
[GUI] [Wrn] [Application.cc:797] [QT] file::/EntityContextMenuPlugin/EntityContextMenuPlugin.qml:67:3: QML EntityContextMenu: Detected anchors on an item that is managed by a layout. This is undefined behavior; use Layout.alignment instead.
[GUI] [Msg] Added plugin [Entity Context Menu] to main window
[GUI] [Msg] Loaded plugin [EntityContextMenuPlugin] from path [/usr/lib/x86_64-linux-gnu/ign-gazebo-6/plugins/gui/libEntityContextMenuPlugin.so]
[GUI] [Dbg] [Application.cc:426] Loading plugin [GzSceneManager]
[GUI] [Msg] Added plugin [Scene Manager] to main window
[GUI] [Msg] Loaded plugin [GzSceneManager] from path [/usr/lib/x86_64-linux-gnu/ign-gazebo-6/plugins/gui/libGzSceneManager.so]
[GUI] [Dbg] [Application.cc:426] Loading plugin [InteractiveViewControl]
[GUI] [Msg] Camera view controller topic advertised on [/gui/camera/view_control]
[GUI] [Msg] Added plugin [Interactive view control] to main window
[GUI] [Msg] Loaded plugin [InteractiveViewControl] from path [/usr/lib/x86_64-linux-gnu/ign-gui-6/plugins/libInteractiveViewControl.so]
[GUI] [Dbg] [Application.cc:426] Loading plugin [CameraTracking]
[GUI] [Msg] Added plugin [Camera tracking] to main window
[GUI] [Msg] Loaded plugin [CameraTracking] from path [/usr/lib/x86_64-linux-gnu/ign-gui-6/plugins/libCameraTracking.so]
[GUI] [Dbg] [Application.cc:426] Loading plugin [MarkerManager]
[GUI] [Msg] Listening to stats on [/world/default/stats]
[GUI] [Msg] Added plugin [Marker Manager] to main window
[GUI] [Msg] Loaded plugin [MarkerManager] from path [/usr/lib/x86_64-linux-gnu/ign-gui-6/plugins/libMarkerManager.so]
[GUI] [Dbg] [Application.cc:426] Loading plugin [SelectEntities]
[GUI] [Msg] Added plugin [Select entities] to main window
[GUI] [Msg] Loaded plugin [SelectEntities] from path [/usr/lib/x86_64-linux-gnu/ign-gazebo-6/plugins/gui/libSelectEntities.so]
[GUI] [Dbg] [Application.cc:426] Loading plugin [Spawn]
[GUI] [Wrn] [Application.cc:797] [QT] file::/Spawn/Spawn.qml:32:3: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
[GUI] [Msg] Added plugin [Spawn] to main window
[GUI] [Msg] Loaded plugin [Spawn] from path [/usr/lib/x86_64-linux-gnu/ign-gazebo-6/plugins/gui/libSpawn.so]
[GUI] [Dbg] [Application.cc:426] Loading plugin [VisualizationCapabilities]
[GUI] [Msg] View as transparent service on [/gui/view/transparent]
[GUI] [Msg] View as wireframes service on [/gui/view/wireframes]
[GUI] [Msg] View center of mass service on [/gui/view/com]
[GUI] [Msg] View inertia service on [/gui/view/inertia]
[GUI] [Msg] View collisions service on [/gui/view/collisions]
[GUI] [Msg] View joints service on [/gui/view/joints]
[GUI] [Msg] View frames service on [/gui/view/frames]
[GUI] [Msg] Added plugin [Visualization capabilities] to main window
[GUI] [Msg] Loaded plugin [VisualizationCapabilities] from path [/usr/lib/x86_64-linux-gnu/ign-gazebo-6/plugins/gui/libVisualizationCapabilities.so]
[GUI] [Dbg] [Application.cc:426] Loading plugin [WorldControl]
[GUI] [Wrn] [Application.cc:797] [QT] file::/WorldControl/WorldControl.qml:30:3: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
[GUI] [Msg] Using world control service [/world/default/control]
[GUI] [Msg] Listening to stats on [/world/default/stats]
[GUI] [Dbg] [WorldControl.cc:246] Using an event to share WorldControl msgs with the server
[GUI] [Msg] Added plugin [World control] to main window
[GUI] [Msg] Loaded plugin [WorldControl] from path [/usr/lib/x86_64-linux-gnu/ign-gui-6/plugins/libWorldControl.so]
[GUI] [Dbg] [Application.cc:426] Loading plugin [WorldStats]
[GUI] [Msg] Listening to stats on [/world/default/stats]
[GUI] [Msg] Added plugin [World stats] to main window
[GUI] [Msg] Loaded plugin [WorldStats] from path [/usr/lib/x86_64-linux-gnu/ign-gui-6/plugins/libWorldStats.so]
[GUI] [Dbg] [Application.cc:426] Loading plugin [Shapes]
[GUI] [Msg] Added plugin [Shapes] to main window
[GUI] [Msg] Loaded plugin [Shapes] from path [/usr/lib/x86_64-linux-gnu/ign-gazebo-6/plugins/gui/libShapes.so]
[GUI] [Dbg] [Application.cc:426] Loading plugin [Lights]
[GUI] [Msg] Added plugin [Lights] to main window
[GUI] [Msg] Loaded plugin [Lights] from path [/usr/lib/x86_64-linux-gnu/ign-gazebo-6/plugins/gui/libLights.so]
[GUI] [Dbg] [Application.cc:426] Loading plugin [TransformControl]
[GUI] [Wrn] [Application.cc:797] [QT] file::/TransformControl/TransformControl.qml:104:3: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
[GUI] [Wrn] [Application.cc:797] [QT] file::/TransformControl/TransformControl.qml:99:3: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
[GUI] [Wrn] [Application.cc:797] [QT] file::/TransformControl/TransformControl.qml:94:3: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
[GUI] [Wrn] [Application.cc:797] [QT] file::/TransformControl/TransformControl.qml:89:3: QML Connections: Implicitly defined onFoo properties in Connections are deprecated. Use this syntax instead: function onFoo(<arguments>) { ... }
[GUI] [Dbg] [TransformControl.cc:219] Legacy mode is disabled; this plugin must be used with MinimalScene.
[GUI] [Msg] Added plugin [Transform control] to main window
[GUI] [Msg] Loaded plugin [TransformControl] from path [/usr/lib/x86_64-linux-gnu/ign-gazebo-6/plugins/gui/libTransformControl.so]
[GUI] [Dbg] [Application.cc:426] Loading plugin [Screenshot]
[GUI] [Msg] Screenshot service on [/gui/screenshot]
[GUI] [Msg] Added plugin [Screenshot] to main window
[GUI] [Msg] Loaded plugin [Screenshot] from path [/usr/lib/x86_64-linux-gnu/ign-gui-6/plugins/libScreenshot.so]
[GUI] [Dbg] [Application.cc:426] Loading plugin [CopyPaste]
[GUI] [Msg] Added plugin [Copy/Paste] to main window
[GUI] [Msg] Loaded plugin [CopyPaste] from path [/usr/lib/x86_64-linux-gnu/ign-gazebo-6/plugins/gui/libCopyPaste.so]
[GUI] [Dbg] [Application.cc:426] Loading plugin [ComponentInspector]
[GUI] [Msg] Added plugin [Component inspector] to main window
[GUI] [Msg] Loaded plugin [ComponentInspector] from path [/usr/lib/x86_64-linux-gnu/ign-gazebo-6/plugins/gui/libComponentInspector.so]
[GUI] [Dbg] [Application.cc:426] Loading plugin [EntityTree]
[GUI] [Wrn] [Application.cc:797] [QT] file::/EntityTree/EntityTree.qml:148:7: QML ToolButton: Detected anchors on an item that is managed by a layout. This is undefined behavior; use Layout.alignment instead.
[GUI] [Msg] Added plugin [Entity tree] to main window
[GUI] [Msg] Loaded plugin [EntityTree] from path [/usr/lib/x86_64-linux-gnu/ign-gazebo-6/plugins/gui/libEntityTree.so]
[GUI] [Dbg] [Application.cc:296] Loading window config
[GUI] [Msg] Using server control service [/server_control]
[GUI] [Dbg] [Application.cc:569] Applying config
[GUI] [Wrn] [Application.cc:797] [QT] file::/Gazebo/GazeboDrawer.qml:147:3: QML Dialog: Binding loop detected for property "implicitHeight"
[GUI] [Wrn] [Application.cc:797] [QT] file::/EntityTree/EntityTree.qml:148:7: QML ToolButton: Detected anchors on an item that is managed by a layout. This is undefined behavior; use Layout.alignment instead.
[GUI] [Wrn] [Application.cc:797] [QT] file::/WorldStats/WorldStats.qml:53:3: QML RowLayout: Binding loop detected for property "x"
[GUI] [Wrn] [Application.cc:797] [QT] file::/EntityContextMenuPlugin/EntityContextMenuPlugin.qml:52:3: QML RenderWindowOverlay: Detected anchors on an item that is managed by a layout. This is undefined behavior; use Layout.alignment instead.
[GUI] [Wrn] [Application.cc:797] [QT] file::/EntityContextMenuPlugin/EntityContextMenuPlugin.qml:67:3: QML EntityContextMenu: Detected anchors on an item that is managed by a layout. This is undefined behavior; use Layout.alignment instead.
[GUI] [Msg] Loading plugin [ignition-rendering-ogre2]
[GUI] [Dbg] [MinimalScene.cc:560] Create scene [scene]
[GUI] [Msg] Loading plugin [ignition-rendering-ogre2]
[GUI] [Dbg] [TransformControl.cc:528] TransformControl plugin is using camera [scene::Camera(65527)]
[GUI] [Msg] Loading plugin [ignition-rendering-ogre2]
[GUI] [Msg] Loading plugin [ignition-rendering-ogre2]
[GUI] [Dbg] [Spawn.cc:289] Spawn plugin is using camera [scene::Camera(65527)]
[GUI] [Msg] Loading plugin [ignition-rendering-ogre2]
[GUI] [Dbg] [SelectEntities.cc:451] SelectEntities plugin is using camera [scene::Camera(65527)]
[GUI] [Msg] Loading plugin [ignition-rendering-ogre2]
[GUI] [Dbg] [MarkerManager.cc:173] Advertise /marker/list service.
[GUI] [Dbg] [MarkerManager.cc:183] Advertise /marker/list.
[GUI] [Dbg] [MarkerManager.cc:193] Advertise /marker_array.
[GUI] [Msg] Loading plugin [ignition-rendering-ogre2]
[GUI] [Dbg] [CameraTracking.cc:181] CameraTrackingPrivate plugin is moving camera [scene::Camera(65527)]
[GUI] [Msg] Move to service on [/gui/move_to]
[GUI] [Msg] Follow service on [/gui/follow]
[GUI] [Msg] Move to pose service on [/gui/move_to/pose]
[GUI] [Msg] Camera pose topic advertised on [/gui/camera/pose]
[GUI] [Msg] Follow offset service on [/gui/follow/offset]
[GUI] [Msg] Loading plugin [ignition-rendering-ogre2]
[GUI] [Dbg] [InteractiveViewControl.cc:130] InteractiveViewControl plugin is moving camera [scene::Camera(65527)]
[GUI] [Msg] Loading plugin [ignition-rendering-ogre2]
[GUI] [Msg] Loading plugin [ignition-rendering-ogre2]
[GUI] [Dbg] [EntityContextMenuPlugin.cc:79] Entity context menu plugin is using camera [scene::Camera(65527)]
[Msg] Found no publishers on /stats, adding root stats topic
[Msg] Found no publishers on /clock, adding root clock topic
[Dbg] [SimulationRunner.cc:491] Creating PostUpdate worker threads: 3
[Dbg] [SimulationRunner.cc:502] Creating postupdate worker thread (0)
[Dbg] [SimulationRunner.cc:502] Creating postupdate worker thread (1)
[Msg] SampleSystem2::PreUpdate
[Msg] SampleSystem2::Update
[Msg] SampleSystem::PostUpdate
[Msg] SampleSystem2::PostUpdate
[Msg] SampleSystem2::PreUpdate
[Msg] SampleSystem2::Update
[Msg] SampleSystem::PostUpdate
[Msg] SampleSystem2::PostUpdate
[Msg] SampleSystem2::PreUpdate
[Msg] SampleSystem2::Update
[Msg] [Msg] [Msg] SampleSystem2::PostUpdate
SampleSystem::PostUpdate
[Msg] SampleSystem2::PreUpdate
[Msg] SampleSystem2::Update
[Msg] SampleSystem::PostUpdate
[Msg] SampleSystem2::PostUpdate
[Msg] SampleSystem2::PreUpdate
[Msg] SampleSystem2::Update
[Msg] SampleSystem::PostUpdate
SampleSystem::PostUpdate[Msg] SampleSystem2::PostUpdate
[Msg] SampleSystem2::PreUpdate
[Msg] SampleSystem2::Update
[Msg] SampleSystem::PostUpdate
[Msg] SampleSystem2::PostUpdate
[Msg] SampleSystem2::PreUpdate

it continues running the sample system PreUpdate and PostUpdate methods until the simulation is closed

[Sebastian-Schroder]

I mistakenly added this to the wrong repo. A new issue has been raised on the main gz-sim repo, and this one will be closed to prevent confusion.