Thanks for sharing.
I have some suggestions，You’d better use the trition version for include/protoc/lib to avoid the issues that other deepstream elements refer to different versions of the library. Do not use /root/.local/include to avoid problems caused by version changes
This means:
include : /opt/tritonclient/include/google/protobuf
protoc: /opt/proto/bin/protoc
lib: /opt/tritonclient/lib/libprotobuf.a
echo $PATH， Do these paths contain other versions of protoc? This problem is usually caused by protoc