The recorder uses ob::Error::getStatus(), present in v2.8.6 (the Nano) but not v2.4.3 (the version pre-placed on the Orin), so pin the version the recorder is written against. Also configure from $root/build with 'cmake ..' — the SDK's cmake makes its own linux_<arch> output subdir, so creating one first put the libs at build/linux_aarch64/linux_arm64/lib where find_build could not see them. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>