您好，编译的时候出现 未定义的引用，请问是什么原因导致的？

[long2double]

ModelImporter.cpp:(.text+0x84fb)：对‘google::protobuf::io::CopyingInputStreamAdaptor::~CopyingInputStreamAdaptor()’未定义的引用 ModelImporter.cpp:(.text+0x8504)：对‘google::protobuf::io::FileInputStream::CopyingFileInputStream::~CopyingFileInputStream()’未定义的引用 ModelImporter.cpp:(.text+0x8523)：对‘google::protobuf::io::CodedInputStream::default_recursionlimit’未定义的引用 ModelImporter.cpp:(.text+0x85cd)：对‘google::protobuf::io::CodedInputStream::Refresh()’未定义的引用 ModelImporter.cpp:(.text+0x85da)：对‘google::protobuf::io::CodedInputStream::SetTotalBytesLimit(int)’未定义的引用 ModelImporter.cpp:(.text+0x85e5)：对‘google::protobuf::MessageLite::ParseFromCodedStream(google::protobuf::io::CodedInputStream)’未定义的引用 ModelImporter.cpp:(.text+0x86d3)：对‘google::protobuf::io::CodedInputStream::~CodedInputStream()’未定义的引用 ModelImporter.cpp:(.text+0x86e4)：对‘google::protobuf::io::CodedInputStream::~CodedInputStream()’未定义的引用 ModelImporter.cpp:(.text+0x88c6)：对‘vtable for google::protobuf::io::FileInputStream’未定义的引用 ModelImporter.cpp:(.text+0x88db)：对‘google::protobuf::io::CopyingInputStreamAdaptor::~CopyingInputStreamAdaptor()’未定义的引用 ModelImporter.cpp:(.text+0x88e4)：对‘google::protobuf::io::FileInputStream::CopyingFileInputStream::~CopyingFileInputStream()’未定义的引用 ModelImporter.cpp:(.text+0x89b6)：对‘google::protobuf::io::CodedInputStream::~CodedInputStream()’未定义的引用 objs/onnx_parser/ModelImporter.o：在函数‘onnx2trt::ModelImporter::parseFromFile(char const, int)’中： ModelImporter.cpp:(.text+0x8aef)：对‘google::protobuf::internal::VerifyVersion(int, int, char const)’未定义的引用 ModelImporter.cpp:(.text+0x8b32)：对‘google::protobuf::io::FileInputStream::FileInputStream(int, int)’未定义的引用 ModelImporter.cpp:(.text+0x8b39)：对‘google::protobuf::io::CodedInputStream::default_recursionlimit’未定义的引用 ModelImporter.cpp:(.text+0x8beb)：对‘google::protobuf::io::CodedInputStream::Refresh()’未定义的引用 ModelImporter.cpp:(.text+0x8bf8)：对‘google::protobuf::io::CodedInputStream::SetTotalBytesLimit(int)’未定义的引用 ModelImporter.cpp:(.text+0x8c03)：对‘google::protobuf::MessageLite::ParseFromCodedStream(google::protobuf::io::CodedInputStream)’未定义的引用 ModelImporter.cpp:(.text+0x8c0e)：对‘google::protobuf::io::CodedInputStream::~CodedInputStream()’未定义的引用 ModelImporter.cpp:(.text+0x8c15)：对‘vtable for google::protobuf::io::FileInputStream’未定义的引用 ModelImporter.cpp:(.text+0x8c2a)：对‘google::protobuf::io::CopyingInputStreamAdaptor::~CopyingInputStreamAdaptor()’未定义的引用 ModelImporter.cpp:(.text+0x8c33)：对‘google::protobuf::io::FileInputStream::CopyingFileInputStream::~CopyingFileInputStream()’未定义的引用 ModelImporter.cpp:(.text+0x9280)：对‘google::protobuf::RepeatedPtrField::size() const’未定义的引用 ModelImporter.cpp:(.text+0x9295)：对‘google::protobuf::RepeatedPtrField::Get(int) const’未定义的引用 ModelImporter.cpp:(.text+0x9675)：对‘google::protobuf::TextFormat::PrintToString(google::protobuf::Message const&, std::string)’未定义的引用 ModelImporter.cpp:(.text+0x9eeb)：对‘google::protobuf::io::FileInputStream::FileInputStream(int, int)’未定义的引用 ModelImporter.cpp:(.text+0x9f00)：对‘google::protobuf::TextFormat::Parse(google::protobuf::io::ZeroCopyInputStream, google::protobuf::Message)’未定义的引用 ModelImporter.cpp:(.text+0x9f18)：对‘google::protobuf::io::CopyingInputStreamAdaptor::~CopyingInputStreamAdaptor()’未定义的引用 ModelImporter.cpp:(.text+0x9f21)：对‘google::protobuf::io::FileInputStream::CopyingFileInputStream::~CopyingFileInputStream()’未定义的引用 ModelImporter.cpp:(.text+0xa04e)：对‘google::protobuf::io::CodedInputStream::~CodedInputStream()’未定义的引用 ModelImporter.cpp:(.text+0xa05a)：对‘vtable for google::protobuf::io::FileInputStream’未定义的引用 ModelImporter.cpp:(.text+0xa06f)：对‘google::protobuf::io::CopyingInputStreamAdaptor::~CopyingInputStreamAdaptor()’未定义的引用 ModelImporter.cpp:(.text+0xa078)：对‘google::protobuf::io::FileInputStream::CopyingFileInputStream::~CopyingFileInputStream()’未定义的引用 ModelImporter.cpp:(.text+0xa0f9)：对‘google::protobuf::io::CopyingInputStreamAdaptor::~CopyingInputStreamAdaptor()’未定义的引用 ModelImporter.cpp:(.text+0xa105)：对‘google::protobuf::io::FileInputStream::CopyingFileInputStream::~CopyingFileInputStream()’未定义的引用 objs/onnx_parser/ModelImporter.o：在函数‘bool toposort<google::protobuf::RepeatedPtrField >(google::protobuf::RepeatedPtrField const&, std::vector<unsigned long, std::allocator >)’中： ModelImporter.cpp:(.text._Z8toposortIN6google8protobuf16RepeatedPtrFieldIN14ONNX_NAMESPACE9NodeProtoEEEEbRKT_PSt6vectorImSaImEE[_Z8toposortIN6google8protobuf16RepeatedPtrFieldIN14ONNX_NAMESPACE9NodeProtoEEEEbRKT_PSt6vectorImSaImEE]+0xda)：对‘google::protobuf::RepeatedPtrField::begin() const’未定义的引用 ModelImporter.cpp:(.text._Z8toposortIN6google8protobuf16RepeatedPtrFieldIN14ONNX_NAMESPACE9NodeProtoEEEEbRKT_PSt6vectorImSaImEE[_Z8toposortIN6google8protobuf16RepeatedPtrFieldIN14ONNX_NAMESPACE9NodeProtoEEEEbRKT_PSt6vectorImSaImEE]+0xe5)：对‘google::protobuf::RepeatedPtrField::end() const’未定义的引用 objs/onnx_parser/OnnxAttrs.o：在函数‘std::vector<float, std::allocator > OnnxAttrs::get<std::vector<float, std::allocator > >(std::string) const’中： /home/yanyan/tensorRTIntegrate/src/onnx_parser/OnnxAttrs.cpp:53：对‘google::protobuf::RepeatedField::~RepeatedField()’未定义的引用 objs/onnx_parser/OnnxAttrs.o：在函数‘std::vector<float, std::allocator > OnnxAttrs::get<std::vector<float, std::allocator > >(std::string) const’中： OnnxAttrs.cpp:(.text+0xdbc)：对‘google::protobuf::RepeatedField::Reserve(int)’未定义的引用 OnnxAttrs.cpp:(.text+0xeac)：对‘google::protobuf::RepeatedField::~RepeatedField()’未定义的引用 objs/onnx_parser/OnnxAttrs.o：在函数‘std::vector<long, std::allocator > OnnxAttrs::get<std::vector<long, std::allocator > >(std::string) const’中： OnnxAttrs.cpp:(.text+0x1056)：对‘google::protobuf::RepeatedField::~RepeatedField()’未定义的引用 OnnxAttrs.cpp:(.text+0x109c)：对‘google::protobuf::RepeatedField::Reserve(int)’未定义的引用 OnnxAttrs.cpp:(.text+0x118c)：对‘google::protobuf::RepeatedField::~RepeatedField()’未定义的引用 objs/onnx_parser/OnnxAttrs.o：在函数‘std::vector<int, std::allocator > OnnxAttrs::get<std::vector<int, std::allocator > >(std::string) const’中： OnnxAttrs.cpp:(.text+0x13c2)：对‘google::protobuf::RepeatedField::~RepeatedField()’未定义的引用 OnnxAttrs.cpp:(.text+0x13e4)：对‘google::protobuf::RepeatedField::Reserve(int)’未定义的引用 OnnxAttrs.cpp:(.text+0x1521)：对‘google::protobuf::RepeatedField::~RepeatedField()’未定义的引用 collect2: 错误：ld 返回 1 make: *** [workspace/trtrun] 错误 1