[Humble] Gz Harmonic and ros-gz have different version

[federicociresola]

I noticed that there is a mismatch between version of gzharmonic and the new version of theros_gz package.
ros_gz has now reached the v244.19 but I noticed that when a user installs ROS2 Humble with Harmonic, he has

• gzharmonic v244.12
• gzharmonic-bridge v244.12

and it is not possible to install ros_gz

Environment

• OS Version: Ubuntu 22.04 LTS
• I am using binary build

Steps to reproduce & Output

• Output of sudo dpkg -l | grep gz

ii  ros-humble-ros-gzharmonic                                         0.244.12-3jammy                             amd64        Meta-package containing interfaces for using ROS 2 with Gazebo simulation.
ii  ros-humble-ros-gzharmonic-bridge                                  0.244.12-3jammy                             amd64        Bridge communication between ROS and Gazebo Transport
ii  ros-humble-ros-gzharmonic-image                                   0.244.12-3jammy                             amd64        Image utilities for Gazebo simulation with ROS.
ii  ros-humble-ros-gzharmonic-interfaces                              0.244.12-3jammy                             amd64        Message and service data structures for interacting with Gazebo from ROS2.
ii  ros-humble-ros-gzharmonic-sim                                     0.244.12-3jammy                             amd64        Tools for using Gazebo Sim simulation with ROS.
ii  ros-humble-ros-gzharmonic-sim-demos                               0.244.12-3jammy                             amd64        Demos using Gazebo Sim simulation with ROS.

• Output of sudo dpkg -l | grep ros-gz

ros-humble-ros-gz-bridge-dbgsym/jammy 0.244.17-1jammy.20250506.151647 amd64
ros-humble-ros-gz-bridge/jammy 0.244.17-1jammy.20250506.151647 amd64
ros-humble-ros-gz-image-dbgsym/jammy 0.244.17-1jammy.20250506.155045 amd64
ros-humble-ros-gz-image/jammy 0.244.17-1jammy.20250506.155045 amd64
ros-humble-ros-gz-interfaces-dbgsym/jammy 0.244.17-1jammy.20250506.143846 amd64
ros-humble-ros-gz-interfaces/jammy 0.244.17-1jammy.20250506.143846 amd64
ros-humble-ros-gz-sim-dbgsym/jammy 0.244.17-1jammy.20250506.143836 amd64
ros-humble-ros-gz-sim-demos/jammy 0.244.17-1jammy.20250514.172424 amd64
ros-humble-ros-gz-sim/jammy 0.244.17-1jammy.20250506.143836 amd64
ros-humble-ros-gz/jammy 0.244.17-1jammy.20250514.173802 amd64
ros-humble-ros-gzgarden-bridge/unknown 0.244.11-1002jammy amd64
ros-humble-ros-gzgarden-image/unknown 0.244.11-1002jammy amd64
ros-humble-ros-gzgarden-interfaces/unknown 0.244.11-1002jammy amd64
ros-humble-ros-gzgarden-sim-demos/unknown 0.244.11-1002jammy amd64
ros-humble-ros-gzgarden-sim/unknown 0.244.11-1002jammy amd64
ros-humble-ros-gzgarden/unknown 0.244.11-1002jammy amd64
ros-humble-ros-gzharmonic-bridge/unknown,now 0.244.12-3jammy amd64 [installed]
ros-humble-ros-gzharmonic-image/unknown,now 0.244.12-3jammy amd64 [installed]
ros-humble-ros-gzharmonic-interfaces/unknown,now 0.244.12-3jammy amd64 [installed]
ros-humble-ros-gzharmonic-sim-demos/unknown,now 0.244.12-3jammy amd64 [installed]
ros-humble-ros-gzharmonic-sim/unknown,now 0.244.12-3jammy amd64 [installed]
ros-humble-ros-gzharmonic/unknown,now 0.244.12-3jammy amd64 [installed]

• Output of sudo apt install ros-humble-ros-gz

Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
 libdart6.13-collision-bullet-dev : Breaks: libdart-collision-bullet-dev (< 6.14.0) but 6.12.1+dfsg4-11build2 is to be installed
 libdart6.13-collision-ode-dev : Breaks: libdart-collision-ode-dev (< 6.14.0) but 6.12.1+dfsg4-11build2 is to be installed
 libdart6.13-dev : Breaks: libdart-dev (< 6.14.0) but 6.12.1+dfsg4-11build2 is to be installed
 libdart6.13-external-convhull-3d-dev : Breaks: libdart-external-convhull-3d-dev (< 6.14.0) but 6.12.1+dfsg4-11build2 is to be installed
 libdart6.13-external-ikfast-dev : Breaks: libdart-external-ikfast-dev (< 6.14.0) but 6.12.1+dfsg4-11build2 is to be installed
 libdart6.13-external-odelcpsolver-dev : Breaks: libdart-external-odelcpsolver-dev (< 6.14.0) but 6.12.1+dfsg4-11build2 is to be installed
 libdart6.13-utils-dev : Breaks: libdart-utils-dev (< 6.14.0) but 6.12.1+dfsg4-11build2 is to be installed
 libdart6.13-utils-urdf-dev : Breaks: libdart-utils-urdf-dev (< 6.14.0) but 6.12.1+dfsg4-11build2 is to be installed
 ros-humble-ros-gzharmonic-bridge : Conflicts: ros-humble-ros-gz-bridge but 0.244.17-1jammy.20250506.151647 is to be installed
 ros-humble-ros-gzharmonic-image : Conflicts: ros-humble-ros-gz-image but 0.244.17-1jammy.20250506.155045 is to be installed
 ros-humble-ros-gzharmonic-interfaces : Conflicts: ros-humble-ros-gz-interfaces but 0.244.17-1jammy.20250506.143846 is to be installed
 ros-humble-ros-gzharmonic-sim : Conflicts: ros-humble-ros-gz-sim but 0.244.17-1jammy.20250506.143836 is to be installed
 ros-humble-ros-gzharmonic-sim-demos : Conflicts: ros-humble-ros-gz-sim-demos but 0.244.17-1jammy.20250514.172424 is to be installed
E: Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages.

[azeey]

@j-rivero can you take a look at this? Do we need a manual step to release the latest ros_gz into ros-humble-ros-gzharmonic ?

[j-rivero]

@j-rivero can you take a look at this? Do we need a manual step to release the latest ros_gz into ros-humble-ros-gzharmonic ?

Yep, there are some manual steps that needs to be done. I'll try to resurrect them.

[j-rivero]

The installation of the ros-humble-ros-gzharmonic from a clean state I think that it is fine according to our CI https://build.osrfoundation.org/job/ros_gzharmonic_bridge-install-pkg_humble-ci-jammy-amd64/.

Is this the case here that the problem is trying to install ros-humble-ros-gz after the installation of ros-humble-ros-gzharmonic ? If that is the case, I'm afraid that someone needs to uninstall ros-humble-ros-gzharmonic manually since the metadata in ros-humble-ros-gz can not handle the package transition (ros-humble-ros-gz knows nothing about ros-humble-ros-gzharmonic).