IMServer/server.cc:51:65: error: reference to ‘1’ is ambiguous
boost::bind(&ProtobufCodec::onMessage, &codec, _1, _2, _3));
^
In file included from /home/root/build/release-install-cpp11/include/muduo/net/Callbacks.h:16:0,
from /home/root/build/release-install-cpp11/include/muduo/net/TcpConnection.h:17,