2 votes

datatype_void avatar

Erreurs de liaison lors de la construction d'un projet c++ avec mongo-cxx-driver

Demandé el 22 de Septembre, 2017
Quand la question a-t-elle été
607 affichage
Nombre de visites la question a
1 Réponses
Nombre de réponses aux questions
Résolu
Situation réelle de la question

Je suis actuellement en train de développer un C++ qui nécessite l'utilisation de la mongo-cxx-driver pour accéder à un MongoDB instance. J'ai essayé plusieurs méthodes d'installation, et j'ai rencontré les mêmes problèmes de liaison à chaque fois.

Au départ, j'ai essayé d'installer mongo-cxx-drivers y mongod-c-driver comme détaillé ici : https://mongodb.github.io/mongo-cxx-driver/mongocxx-v3/installation/

En utilisant la partie suivante de ma configuration CMake, j'ai pu faire fonctionner l'auto-complétion et mon IDE a reconnu les bibliothèques :

. . .

set(CMAKE_CXX_STANDARD 17)

set(BUILD_DIR "cmake-build-debug")
set(BUILD_PATH "${CMAKE_SOURCE_DIR}/${BUILD_DIR}")

find_package(libmongocxx REQUIRED)
find_package(libbsoncxx REQUIRED)

message("LIBMONGOCXX_INCLUDE_DIRS = ${LIBMONGOCXX_INCLUDE_DIRS}")
message("LIBMONGOCXX_LIBRARIES = ${LIBMONGOCXX_LIBRARIES}")

message("LIBBSONCXX_INCLUDE_DIRS = ${LIBBSONCXX_INCLUDE_DIRS}")
message("LIBBSONCXX_LIBRARIES = ${LIBBSONCXX_LIBRARIES}")

file(GLOB COMMON_LIBRARIES ${LIBMONGOCXX_LIBRARIES} ${LIBBSONCXX_LIBRARIES})

SET(APP_SOURCE source/App/main.cpp)

SET(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${BUILD_PATH}/App)
add_executable(App ${APP_SOURCE})
target_include_directories(App PUBLIC ${LIBMONGOCXX_INCLUDE_DIRS})
target_include_directories(App PUBLIC ${LIBBSONCXX_INCLUDE_DIRS})

target_link_libraries(App ${COMMON_LIBRARIES})

. . .

Malheureusement, lors de l'étape de liaison, j'obtiens ces erreurs :

[100%] Linking CXX executable App/App
    Undefined symbols for architecture x86_64:
  "mongocxx::v_noabi::uri::uri(bsoncxx::v_noabi::string::view_or_value)", referenced from:
      App::Initialize(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&) in main.cpp.o
  "mongocxx::v_noabi::uri::~uri()", referenced from:
      App::Initialize(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&) in main.cpp.o
  "mongocxx::v_noabi::client::client(mongocxx::v_noabi::uri const&, mongocxx::v_noabi::options::client const&)", referenced from:
      App::Initialize(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&) in main.cpp.o
  "mongocxx::v_noabi::client::~client()", referenced from:
      App::Initialize(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&) in .cpp.o
  "mongocxx::v_noabi::instance::instance()", referenced from:
      App::Initialize(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&) in main.cpp.o
  "mongocxx::v_noabi::instance::~instance()", referenced from:
      App::Initialize(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&) in main.cpp.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make[3]: *** [App/App] Error 1
make[2]: *** [CMakeFiles/App.dir/all] Error 2
make[1]: *** [CMakeFiles/App.dir/rule] Error 2
make: *** [App] Error 2

J'ai essayé de construire en utilisant différents c++17 polyfills juste au cas où, sans succès. J'ai également essayé de désinstaller manuellement mongo-cxx-driver y mongo-c-driver Cette fois, j'ai installé par homebrew, mais j'ai rencontré les mêmes erreurs.

D'après mes recherches, le post le plus pertinent de StackOverflow est Utilisation du pilote cxx de mongodb dans un projet c++ de cmake Pourtant, aucune des solutions proposées ne fonctionne pour moi.

Operating System: macOS Sierra 10.12.6
IDE: CLion 2017.2.2 Build #CL-172.3968.17, built on August 22, 2017
CMake: 3.8.2
mongo-cxx-driver: 3.1.3
mongo-c-driver: 1.8.0

N'hésitez pas à me demander de clarifier ou d'ajouter des informations lorsqu'elles ne sont pas claires ou manquantes.

EDIT : Voici le code qui provoque l'erreur :

#include <cstdint>
#include <iostream>
#include <vector>
#include <bsoncxx/json.hpp>
#include <mongocxx/client.hpp>
#include <mongocxx/instance.hpp>
#include <mongocxx/uri.hpp>
#include <mongocxx/stdx.hpp>

using bsoncxx::builder::stream::close_array;
using bsoncxx::builder::stream::close_document;
using bsoncxx::builder::stream::document;
using bsoncxx::builder::stream::finalize;
using bsoncxx::builder::stream::open_array;
using bsoncxx::builder::stream::open_document;

mongocxx::instance instance{}; // This should be done only once.
mongocxx::uri uri("mongodb://localhost:27017");
mongocxx::client client(uri);

EDIT : J'ai créé un projet simple à partir de zéro et j'ai revu toutes les étapes pour être sûr de ne pas avoir fait d'erreur. Mais je suis toujours dans le même bateau à la fin.

/Applications/CLion.app/Contents/bin/cmake/bin/cmake -DCMAKE_BUILD_TYPE=Debug -G "CodeBlocks - Unix Makefiles" /Users/user000/Projects/mongo-cxx-driver-test
-- CMAKE_SOURCE_DIR: /Users/user000/Projects/mongo-cxx-driver-test
-- BUILD_PATH: /Users/user000/Projects/mongo-cxx-driver-test/cmake-build-debug
LIBMONGOCXX_INCLUDE_DIRS = /usr/local/include/mongocxx/v_noabi
LIBMONGOCXX_LIBRARIES = mongocxx
LIBBSONCXX_INCLUDE_DIRS = /usr/local/include/bsoncxx/v_noabi
LIBBSONCXX_LIBRARIES = bsoncxx
-- Configuring done
-- Generating done
-- Build files have been written to: /Users/user000/Projects/mongo-cxx-driver-test/cmake-build-debug

[Finished]

Voici la sortie complète lors de la construction avec le mode verbeux activé pour CMake :

/Applications/CLion.app/Contents/bin/cmake/bin/cmake --build /Users/user000/Projects/mongo-cxx-driver-test/cmake-build-debug --target App -- -j 2
/Applications/CLion.app/Contents/bin/cmake/bin/cmake -H/Users/user000/Projects/mongo-cxx-driver-test -B/Users/user000/Projects/mongo-cxx-driver-test/cmake-build-debug --check-build-system CMakeFiles/Makefile.cmake 0
/Applications/Xcode.app/Contents/Developer/usr/bin/make -f CMakeFiles/Makefile2 App
/Applications/CLion.app/Contents/bin/cmake/bin/cmake -H/Users/user000/Projects/mongo-cxx-driver-test -B/Users/user000/Projects/mongo-cxx-driver-test/cmake-build-debug --check-build-system CMakeFiles/Makefile.cmake 0
/Applications/CLion.app/Contents/bin/cmake/bin/cmake -E cmake_progress_start /Users/user000/Projects/mongo-cxx-driver-test/cmake-build-debug/CMakeFiles 2
/Applications/Xcode.app/Contents/Developer/usr/bin/make -f CMakeFiles/Makefile2 CMakeFiles/App.dir/all
/Applications/Xcode.app/Contents/Developer/usr/bin/make -f CMakeFiles/App.dir/build.make CMakeFiles/App.dir/depend
cd /Users/user000/Projects/mongo-cxx-driver-test/cmake-build-debug && /Applications/CLion.app/Contents/bin/cmake/bin/cmake -E cmake_depends "Unix Makefiles" /Users/user000/Projects/mongo-cxx-driver-test /Users/user000/Projects/mongo-cxx-driver-test /Users/user000/Projects/mongo-cxx-driver-test/cmake-build-debug /Users/user000/Projects/mongo-cxx-driver-test/cmake-build-debug /Users/user000/Projects/mongo-cxx-driver-test/cmake-build-debug/CMakeFiles/App.dir/DependInfo.cmake --color=
Scanning dependencies of target App
/Applications/Xcode.app/Contents/Developer/usr/bin/make -f CMakeFiles/App.dir/build.make CMakeFiles/App.dir/build
[ 50%] Building CXX object CMakeFiles/App.dir/source/App/main.cpp.o
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/c++   -I/usr/local/include/mongocxx/v_noabi -I/usr/local/include/bsoncxx/v_noabi  -g   -std=gnu++1z -o CMakeFiles/App.dir/source/App/main.cpp.o -c /Users/user000/Projects/mongo-cxx-driver-test/cmake-build-debug/source/App/main.cpp
[100%] Linking CXX executable App
/Applications/CLion.app/Contents/bin/cmake/bin/cmake -E cmake_link_script CMakeFiles/App.dir/link.txt --verbose=1
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/c++  -g -Wl,-search_paths_first -Wl,-headerpad_max_install_names  CMakeFiles/App.dir/source/App/main.cpp.o  -o App 
Undefined symbols for architecture x86_64:
  "mongocxx::v_noabi::uri::uri(bsoncxx::v_noabi::string::view_or_value)", referenced from:
      _main in main.cpp.o
  "mongocxx::v_noabi::uri::~uri()", referenced from:
      _main in main.cpp.o
  "mongocxx::v_noabi::client::client(mongocxx::v_noabi::uri const&, mongocxx::v_noabi::options::client const&)", referenced from:
      _main in main.cpp.o
  "mongocxx::v_noabi::client::~client()", referenced from:
      _main in main.cpp.o
  "mongocxx::v_noabi::instance::instance()", referenced from:
      _main in main.cpp.o
  "mongocxx::v_noabi::instance::~instance()", referenced from:
      _main in main.cpp.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make[3]: *** [App] Error 1
make[2]: *** [CMakeFiles/App.dir/all] Error 2
make[1]: *** [CMakeFiles/App.dir/rule] Error 2
make: *** [App] Error 2

Le CMakeLists.txt complet :

cmake_minimum_required(VERSION 3.8)
project(App)

set(CMAKE_CXX_STANDARD 17)
set(CMAKE_VERBOSE_MAKEFILE on)

set(BUILD_DIR "cmake-build-debug")
set(BUILD_PATH "${CMAKE_SOURCE_DIR}/${BUILD_DIR}")

set(BUILD_DIR "cmake-build-debug")
set(BUILD_PATH "${CMAKE_SOURCE_DIR}/${BUILD_DIR}")

message(STATUS "CMAKE_SOURCE_DIR: ${CMAKE_SOURCE_DIR}")
message(STATUS "BUILD_PATH: ${BUILD_PATH}")

find_package(libmongocxx REQUIRED)
find_package(libbsoncxx REQUIRED)

message("LIBMONGOCXX_INCLUDE_DIRS = ${LIBMONGOCXX_INCLUDE_DIRS}")
message("LIBMONGOCXX_LIBRARIES = ${LIBMONGOCXX_LIBRARIES}")

message("LIBBSONCXX_INCLUDE_DIRS = ${LIBBSONCXX_INCLUDE_DIRS}")
message("LIBBSONCXX_LIBRARIES = ${LIBBSONCXX_LIBRARIES}")

file(GLOB COMMON_LIBRARIES ${LIBMONGOCXX_LIBRARIES} ${LIBBSONCXX_LIBRARIES})

set(SOURCE_FILES cmake-build-debug/source/App/main.cpp)

add_executable(App ${SOURCE_FILES})
target_include_directories(App PUBLIC ${LIBMONGOCXX_INCLUDE_DIRS})
target_include_directories(App PUBLIC ${LIBBSONCXX_INCLUDE_DIRS})
target_link_libraries(App ${COMMON_LIBRARIES})

Le code qui produit les erreurs :

#include <cstdint>
#include <iostream>
#include <vector>
#include <bsoncxx/json.hpp>
#include <mongocxx/client.hpp>
#include <mongocxx/instance.hpp>
#include <mongocxx/uri.hpp>
#include <mongocxx/stdx.hpp>

using bsoncxx::builder::stream::close_array;
using bsoncxx::builder::stream::close_document;
using bsoncxx::builder::stream::document;
using bsoncxx::builder::stream::finalize;
using bsoncxx::builder::stream::open_array;
using bsoncxx::builder::stream::open_document;

int main() {
  std::cout << "Hello, World!" << std::endl;

  mongocxx::instance instance{}; // This should be done only once.
  mongocxx::uri uri("mongodb://localhost:27017");
  mongocxx::client client(uri);

  return 0;
}
Demandé el 22 de Septembre, 2017 par datatype_void

Réponse

Trop de publicités?

2voto

datatype_void avatar
datatype_void Points 333

Il s'avère que j'ai mal utilisé le GLOB de CMake.

Changer

target_link_libraries(App ${COMMON_LIBRARIES})

à

target_link_libraries(App ${LIBMONGOCXX_LIBRARIES} ${LIBBSONCXX_LIBRARIES})

a réglé le problème.

Répondu el 22 de Septembre, 2017 par datatype_void (333 Points )

Questions en vedette

Top Tags

Dans notre réseau

Prograide.com

Prograide est une communauté de développeurs qui cherche à élargir la connaissance de la programmation au-delà de l'anglais.
Pour cela nous avons les plus grands doutes résolus en français et vous pouvez aussi poser vos propres questions ou résoudre celles des autres.

Powered by:

Yandex
X