>, tensorflow::SignatureDef, (google::protobuf::internal::WireFormatLite::FieldType)9, (google::protobuf::internal::WireFormatLite::FieldType)11, 0>::GetMap() const':
example2.cpp:(.text._ZNK6google8protobuf8internal8MapFieldIN10tensorflow39MetaGraphDef_SignatureDefEntry_DoNotUseENSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEENS3_12SignatureDefELNS1_14WireFormatLite9FieldTypeE9ELSD_11ELi0EE6GetMapEv[_ZNK6google8protobuf8internal8MapFieldIN10tensorflow39MetaGraphDef_SignatureDefEntry_DoNotUseENSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEENS3_12SignatureDefELNS1_14WireFormatLite9FieldTypeE9ELSD_11ELi0EE6GetMapEv]+0x18): undefined reference to `google::protobuf::internal::MapFieldBase::SyncMapWithRepeatedField() const'
collect2: error: ld returned 1 exit status
make[2]: *** [CMakeFiles/example.dir/build.make:98: example] Error 1
make[1]: *** [CMakeFiles/Makefile2:83: CMakeFiles/example.dir/all] Error 2
make: *** [Makefile:91: all] Error 2
```
It took me many days to suffer from this problem.
Any one can give me some suggestion?
Thank you so much.
---
### Author:  [@retif](https://discourse.cmake.org/u/retif)
#### Post date: [July 21, 2023, 8:46am UTC](https://discourse.cmake.org/t/cmake-tensorflow-and-protofbuf-cpp/8569/2 "2023-07-21T08:46:31Z")
Could it be that there is still some linking missing, such as perhaps `${PROTOBUF_LIBRARIES}` doesn’t contain the full list of required libraries? Or something inside TensorFlow does not include [map\_field.h](https://chromium.googlesource.com/external/github.com/google/protobuf/+/HEAD/src/google/protobuf/map_field.h) header (_so it’s a bug of TensorFlow_).
Sometimes the linking order might play some role too.
I have no idea really, just trying to save you some days 🙂
---
### Author:  [@ben.boeckel](https://discourse.cmake.org/u/ben.boeckel)
#### Post date: [July 21, 2023, 12:06pm UTC](https://discourse.cmake.org/t/cmake-tensorflow-and-protofbuf-cpp/8569/3 "2023-07-21T12:06:10Z")
> [@Anhken](#):
>
> `CXXFLAGS = -DGOOGLE_PROTOBUF_ARCH_X64 -DHAVE_THREAD`
This is invalid CMake code. Is this supposed to be in a comment? I _think_ you want:
```cmake
target_compile_definitions(example PRIVATE GOOGLE_PROTOBUF_ARCH_X64 HAVE_THREAD)
```
instead.
> ``
Is there some mismatch between the protobuf your project is finding and the one TensorflowCC found?
---
### Author:  [@Anhken](https://discourse.cmake.org/u/Anhken)
#### Post date: [July 22, 2023, 12:39pm UTC](https://discourse.cmake.org/t/cmake-tensorflow-and-protofbuf-cpp/8569/4 "2023-07-22T12:39:38Z")
> [@ben.boeckel](#):
>
> Is there some mismatch between the protobuf your project is finding and the one TensorflowCC found?
You right, it should be in a comment.
Second, I do not know how to find if there is some mismatch between the protobuf and TensorflowCC
---
### Author:  [@ben.boeckel](https://discourse.cmake.org/u/ben.boeckel)
#### Post date: [July 24, 2023, 10:46am UTC](https://discourse.cmake.org/t/cmake-tensorflow-and-protofbuf-cpp/8569/5 "2023-07-24T10:46:37Z")
If you built TensorflowCC, check its build settings that it is using the `/usr/local` version (since it co-exists there, it should be the preferred one). Then make sure your project is doing the same.
---
### Author:  [@Anhken](https://discourse.cmake.org/u/Anhken)
#### Post date: [July 25, 2023, 3:02am UTC](https://discourse.cmake.org/t/cmake-tensorflow-and-protofbuf-cpp/8569/6 "2023-07-25T03:02:45Z")
Hi Ben, thanks for your reply. Could you please guide me where I can check build settings using /usr/local ? Below is the CMakeLists.txt when I build Tensorflow\_cc.
````auto
cmake_minimum_required(VERSION 3.7 FATAL_ERROR)
cmake_policy(SET CMP0048 NEW) # Enable version parameter in project().
file(STRINGS "${CMAKE_CURRENT_SOURCE_DIR}/PROJECT_VERSION" version)
project(
"tensorflow_cc"
VERSION ${version}
)
option(ALLOW_CUDA "Try to find and use CUDA." ON)
option(REQUIRE_CUDA "Make sure to find and use CUDA (implies ALLOW_CUDA)." OFF)
set(LOCAL_RAM_RESOURCES 4096 CACHE STRING "The amount of local RAM resources passed to bazel scheduler (e.g., 4096).")
set(LOCAL_CPU_RESOURCES HOST_CPUS CACHE STRING "The amount of local CPU cores passed to bazel scheduler (e.g., 2).")
set(TENSORFLOW_TAG "v${version}" CACHE STRING "The tensorflow release tag to be checked out (default v${version}).")
option(INSTALL_PROTOBUF "Install protobuf compatible with tensorflow version." OFF)
set(CMAKE_CXX_STANDARD 14 CACHE STRING "The C++ standard for building and linking the library (e.g., 14).")
# -------------
# CMake Options
# -------------
list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake")
set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/lib")
set(CMAKE_LIBRARY_OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/lib")
include(CMakePackageConfigHelpers)
set(CMAKECFG_INSTALL_DIR lib/cmake/TensorflowCC)
# Configure the build_tensorflow script.
configure_file("cmake/build_tensorflow.sh.in" "build_tensorflow.sh" @ONLY)
# ----------------------------------------------
# Include External Projects for Tensorflow Build
# ----------------------------------------------
include(TensorflowBase)
if(INSTALL_PROTOBUF)
include(ProtobufExternal)
endif()
# ------------------------------
# Define Tensorflow_CC Interface
# ------------------------------
add_library(tensorflow_cc INTERFACE)
target_compile_features(tensorflow_cc INTERFACE "cxx_std_${CMAKE_CXX_STANDARD}")
if(INSTALL_PROTOBUF)
add_dependencies(tensorflow_cc protobuf-external)
endif()
# The include folders are sometimes contained under bazel-bin/bin/ and sometimes just bazel-bin.
target_include_directories(
tensorflow_cc INTERFACE
$
$
$
$
)
target_link_libraries(
tensorflow_cc INTERFACE
"${CMAKE_INSTALL_PREFIX}/lib/libtensorflow_cc.so.${PROJECT_VERSION_MAJOR}"
dl pthread
)
# ----------------------------------------
# Configure CMake Config and Version Files
# ----------------------------------------
write_basic_package_version_file(
"${CMAKE_CURRENT_BINARY_DIR}/TensorflowCCConfigVersion.cmake"
VERSION ${PROJECT_VERSION}
COMPATIBILITY SameMajorVersion
)
configure_package_config_file(
"${CMAKE_CURRENT_SOURCE_DIR}/cmake/TensorflowCCConfig.cmake.in"
"${CMAKE_CURRENT_BINARY_DIR}/TensorflowCCConfig.cmake"
INSTALL_DESTINATION "${CMAKECFG_INSTALL_DIR}"
NO_SET_AND_CHECK_MACRO # TensorflowCC only uses interface libraries
NO_CHECK_REQUIRED_COMPONENTS_MACRO # TensorflowCC does not have components
)
# -------
# Install
# -------
# install all header files
install(
DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/tensorflow/bazel-bin/"
DESTINATION include/tensorflow/bazel-bin
FILES_MATCHING PATTERN "*.h"
PATTERN "*.inc"
REGEX ".*Eigen.*"
)
install(
DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/tensorflow/bazel-bin/tensorflow/"
DESTINATION lib
FILES_MATCHING PATTERN "libtensorflow_cc.so*"
)
install(
DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/tensorflow/bazel-bin/bin/tensorflow/"
DESTINATION lib
FILES_MATCHING PATTERN "libtensorflow_cc.so*"
)
# --------------------------
# Install CMake targets file
# --------------------------
set_target_properties(
tensorflow_cc PROPERTIES EXPORT_NAME TensorflowCC
)
install(
TARGETS tensorflow_cc
EXPORT TensorflowCCTargets
)
install(
EXPORT TensorflowCCTargets
FILE TensorflowCCTargets.cmake
NAMESPACE TensorflowCC::
DESTINATION "${CMAKECFG_INSTALL_DIR}"
)
# install config and version files
install(
FILES
"${CMAKE_CURRENT_BINARY_DIR}/TensorflowCCConfig.cmake"
"${CMAKE_CURRENT_BINARY_DIR}/TensorflowCCConfigVersion.cmake"
DESTINATION "${CMAKECFG_INSTALL_DIR}"
)```
Thank you so much.
````
---
### Author:  [@ben.boeckel](https://discourse.cmake.org/u/ben.boeckel)
#### Post date: [July 26, 2023, 6:14pm UTC](https://discourse.cmake.org/t/cmake-tensorflow-and-protofbuf-cpp/8569/7 "2023-07-26T18:14:32Z")
Their CMake isn’t really useful here. The `CMakeCache.txt` used to build it would be more useful (basically, any Protobuf paths there should match your build’s Protobuf paths).
---
### Author:  [@Serkan](https://discourse.cmake.org/u/Serkan)
#### Post date: [December 14, 2023, 10:21am UTC](https://discourse.cmake.org/t/cmake-tensorflow-and-protofbuf-cpp/8569/8 "2023-12-14T10:21:26Z")
Hey, do you manage to run your tensorflow project with cmake? I’ve been struggling with it for weeks. Can you send me your actual cmake files for help?