Undefined Symbol in libgz-rendering-7(or 9)-ogre2 on Ubuntu 22.04.4 LTS

[Jack-ReframeSystems]

Environment

• OS Version: Ubuntu 22.04.4 LTS
• Source, on branch gz-rendering7, commit f95826fb52355bb4388c37b6bac6de8430224f98
• Rendering Plugin: Ogre2
• Ogre Versions:

  libogre-next-2.3-dev/unknown,now 2.3.1-9osrf~jammy amd64 [installed]
  libogre-next-2.3.0/unknown,now 2.3.1-9osrf~jammy amd64 [installed,automatic]
  libogre-next-dev/jammy,now 2.2.5+dfsg3-0ubuntu2 amd64 [installed]

  I am fairly positive this was caused by a change in the Hlms setupRootLayout interface in this commit of Ogre-next: https://github.com/OGRECave/ogre-next/commit/ea9c99a1ec0210396d48dd28b3bf266e778fd8f3#diff-ddd79ccfa4b6debd7d7161129f18e9b52196690bb885d32736be9bb72f403d1fR225

You can see setupRootLayout got a new signature which is not used in the gz-rendering codebase.

Description

• Expected behavior: Gazebo should start and successfully load the libgz-rendering7-ogre2 engine plugin.
• Actual behavior: Gazebo crashes with:

  [ruby $(which gz) sim-15] Error while loading the library [install/lib/gz-rendering-7/engine-plugins/libgz-rendering-ogre2.so]: install/lib/gz-rendering-7/engine-plugins/libgz-rendering-ogre2.so: undefined symbol: _ZN4Ogre7HlmsPbs15setupRootLayoutERNS_10RootLayoutE
  [ruby $(which gz) sim-15] [GUI] [Err] [RenderEngineManager.cc:534] Failed to load plugin [gz-rendering-ogre2] : couldn't load library on path [install/lib/gz-rendering-7/engine-plugins/libgz-rendering-ogre2.so].

  Steps to reproduce

1. Try and build Gz-Garden from source on Ubuntu 22.04.4 LTS
2. Run gz sim and load up any simulation world.

[traversaro]

I see that both ogre-next 2.3.1 and 2.2.5 are installed by apt, that as you correctly point out are not ABI-compatible. Can you try to uninstall one of the two, and try to re-comile gz-rendering (and any downstream package that depends from gz-rendering and you are compiling from source) from a clean build? My guess is that the problem should disappear.