Similar to https://github.com/sideeffects/HoudiniUsdBridge/issues/24 there's an issue with `houdini20.5` branch: https://github.com/sideeffects/HoudiniUsdBridge/blob/acdb745df57858509e846ba7087f6062035bdf4d/src/houdini/lib/H_USD/HUSD/UsdHoudini/CMakeLists.txt#L21 Ideally, the interpreter's version would be automatically discovered during the build.