⚠️ Development status of the project ⚠️

[diegoferigo]

Due to lack of maintenance effort, the project is currently lagging behind. The current state of the dependencies does not provide a working configuration. Since I'm focusing on other projects for the time being, and I doubt having enough time to fix the project in the close future, I list below the main problems in case someone wants to pick them up:

• The last supported Ignition Gazebo version is Fortress. However, even in Fortress, around October-November 2021 some PR that was merged upstream broke our logic to stream the updated state of the ECM. Therefore, the interaction with the GUI is no longer working.
• The APIs of OpenAI Gym have evolved lately, and the new versions are not backward compatible ^1. Pinning an older version of gym is necessary to use the Python resources of the project.

For those that need a working configuration, I recovered the vcstool configuration file that you can find below. It requires building Ignition from sources.

Regardless, in order to revive the project, I'd suggest taking the following steps:

1. Upgrade the C++ sources (ScenarIO) to Gazebo Sim Garden. It will take some effort due to the Ignition -> Gazebo Sim rebranding.
2. Understand the root of the GUI problems and fix them.
3. Align the vendored Physics system with Gazebo Sim Garden.
4. From the Python side, drop the unmaintained openai/gym support and migrate towards Farama-Foundation/Gymnasium.

vcstool

```yaml repositories: ign-cmake: type: git url: https://github.com/ignitionrobotics/ign-cmake version: 6c4e7daa24d287b3151da80e13973889e8ec0aee ign-common: type: git url: https://github.com/ignitionrobotics/ign-common version: 2af68956f401203048c8b6336b0b3630ae5aca70 ign-fuel-tools: type: git url: https://github.com/ignitionrobotics/ign-fuel-tools version: 348bef1e0664682cde0c7b145ed291c12314d658 ign-gazebo: type: git url: https://github.com/ignitionrobotics/ign-gazebo version: 57f672d7c2c969bb88baa2ff3d36b548954273b6 ign-gui: type: git url: https://github.com/ignitionrobotics/ign-gui version: 653b0fb58abd6ea8b3e3937e43d5aee509e125fc ign-launch: type: git url: https://github.com/ignitionrobotics/ign-launch version: 1c1ef982d8773409bf6391b6c18999efab4285f0 ign-math: type: git url: https://github.com/ignitionrobotics/ign-math version: 65a7c249fb1d0c1a4b09880759b8a41ae9dae9b4 ign-msgs: type: git url: https://github.com/ignitionrobotics/ign-msgs version: 0514d16b7923b8f128eee5e589f23447310f9b14 ign-physics: type: git url: https://github.com/ignitionrobotics/ign-physics version: 42d232088f719d4a65d8f443f5df56dd837367a2 ign-plugin: type: git url: https://github.com/ignitionrobotics/ign-plugin version: e4015f312207ceca49bd2ce94d27f119889a0493 ign-rendering: type: git url: https://github.com/ignitionrobotics/ign-rendering version: 5c7f216fb04824c4119e7559f59fdd2dab44dc4f ign-sensors: type: git url: https://github.com/ignitionrobotics/ign-sensors version: 16975e9adab17c8408d41cb5f5eac7cc8ccb8229 ign-tools: type: git url: https://github.com/ignitionrobotics/ign-tools version: 83d5de7e33da239f714245e53d91b05651601034 ign-transport: type: git url: https://github.com/ignitionrobotics/ign-transport version: 73bfba75c4580ed243303d5acd8f539263bbe492 ign-utils: type: git url: https://github.com/ignitionrobotics/ign-utils version: e9c439b65e1d773654e0bd6bed2b45d4f8d9e609 sdformat: type: git url: https://github.com/osrf/sdformat version: 57badeb188c131f39a3fc5118fdbdb54fd6f6d66 ```

[traversaro]

Probably we can put a disclaimer with a link to this issue a the top of the REaDME?

[traversaro]

@diegoferigo should we add a refernece to this issue in the readme of the project?

[diegoferigo]

Good idea, done in #432.