Undefined symbols for architecture x86_64:

[lxj5891]

Undefined symbols for architecture x86_64: "mavsdk::Connection::Connection(std::__1::function<void (__mavlink_message&, mavsdk::Connection*)>)", referenced from: mavsdk::TcpConnection::TcpConnection(std::__1::function<void (__mavlink_message&, mavsdk::Connection*)>, std::__1::basic_string<char, std::__1::char_traits, std::__1::allocator >, int) in tcp_connection.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[2]: *** [bkserver] Error 1 make[1]: *** [CMakeFiles/bkserver.dir/all] Error 2 make: *** [all] Error 2

do you help me?

[lxj5891]

My CMakeLists.txt

cmake_minimum_required(VERSION 3.0.0)

project(bkserver VERSION 0.1)

set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_STANDARD_REQUIRED ON)

cmake_policy(SET CMP0025 NEW)

configure_file (
  "${PROJECT_SOURCE_DIR}/include/config.h.in"
  "${PROJECT_BINARY_DIR}/include/config.h"
)

include(GNUInstallDirs)

set(THREADS_PREFER_PTHREAD_FLAG ON)

find_package(Threads REQUIRED)
find_package(MAVSDK REQUIRED)

AUX_SOURCE_DIRECTORY(./src SRC_LIST_CPP ${SRC_LIST_CPP})

add_executable(bkserver src/main.cpp ${SRC_LIST_CPP})

target_link_libraries(bkserver
    MAVSDK::mavsdk
    Threads::Threads
)

[JonasVautherin]

On what system are you running? How did you install MAVSDK? Which version?

[julianoes]

What @JonasVautherin said and maybe you can also share where the code where you're adding the MAVSDK connections. Maybe you're "doing it wrong" and that's why it tries to instantiate the connections in a way that's not supported.

[julianoes]

Closing as there was response.