It looks like libaudioplugingvrunity.so is built against a custom google version of the C runtime - I don’t expect it to work on a standard linux install while this is the case.
I’m on Unity 2018.2.4f1 and Ubuntu 18.04, have one of the same errors as purpleFinch with ResonanceAudio plugin.
The package imports fine, builds fine, works on Android but no sound in the editor. When I restart Unity ResonanceAudio disappears from Audio settings (Spatializer Plugin & Ambisonic Decoder Plugin)… I’ve got CMake, Git and Mercurial as mentioned here (as if it made any difference): GitHub - resonance-audio/resonance-audio: Resonance Audio Source Code
I’m getting this too. It doesn’t seem like it’s breaking anything for me either, but the console noise is annoying.
Unity/VR/Linux64/libaudiopluginresonanceaudio.so: symbol __google_auxv version GLIBC_PRIVATE not defined in file ld-linux-x86-64.so.2 with link time reference