make caffe-yolov3时报错（libyolov3-plugin.so）

[ai815]

作者可以帮忙解决这个问题吗，不知道是哪里出了错i

/usr/bin/ld: ../x86_64/lib/libyolov3-plugin.so: undefined reference to google::base::CheckOpMessageBuilder::NewString()' /usr/bin/ld: ../x86_64/lib/libyolov3-plugin.so: undefined reference to caffe::Net::Net(std::string const&, caffe::Phase, int, std::vector<std::string, std::allocatorstd::string > const*)'
/usr/bin/ld: ../x86_64/lib/libyolov3-plugin.so: undefined reference to `caffe::Net::CopyTrainedLayersFrom(std::string const&)'
collect2: error: ld returned 1 exit status
make[2]: *** [demo/CMakeFiles/demo.dir/build.make:140：x86_64/bin/demo] 错误 1
make[1]: *** [CMakeFiles/Makefile2:144：demo/CMakeFiles/demo.dir/all] 错误 2
make: *** [Makefile:130：all] 错误 2