make[2]: *** [bin/ace_logging_server] Error 1 make[1]: *** [examples/ace/logging/CMakeFiles/ace_logging_server.dir/all] Error 2

[15757170756]

你好，我在编译muduo是遇到了一些问题，请指教

Linux distro and version? x86 or ARM? 32-bit or 64-bit?

Linux Ubuntu14.04 64-bit

Branch (master/cpp11/cpp17) and version of muduo?

Branch master 我是直接从GitHub上clone然后编译的，应该是最新的版本

Version of cmake, gcc and boost? (If not from distro.)

cmake version 3.9.6 gcc version 4.8.4 (Ubuntu 4.8.4-2ubuntu1~14.04.4) BOOST_LIB_VERSION "1_54" libprotoc 3.4.0 其中一个错误../../../lib/libace_logging_proto.a(logrecord.pb.cc.o):(.rodata._ZTVN7logging9LogRecordE[_ZTVN7logging9LogRecordE]+0xb8): undefined reference to `google::protobuf::Message::SpaceUsedLong() const' 都是未定义错误，什么原因