Poco 错误

Question

我想在我的 C++ 项目中使用 Poco 库。但是我在编译时遇到错误。

我正在 Ubuntu OS、CLion 1.2.4 IDE

上开发

这是我的源代码：

#include "Poco/Net/ServerSocket.h"
#include <iostream>

int main(int arc, char** argv){
    std::cout << "Hello world!";
    return 0;
}

这是我的 CMakeLists.txt 文件：

cmake_minimum_required(VERSION 3.3)
project(rcp)

set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")

set(SOURCE_FILES main.cpp)

set(CMAKE_RUNTIME_OUTPUT_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}/bin")

include_directories("libraries")

add_executable(rcp ${SOURCE_FILES})

target_link_libraries(rcp pthread PocoNet PocoUtil PocoFoundation)

这是我编译时的输出：

CMakeFiles/rcp.dir/main.cpp.o: In function `Poco::Net::Impl::IPv6SocketAddressImpl::host() const':
main.cpp:(.text._ZNK4Poco3Net4Impl21IPv6SocketAddressImpl4hostEv[_ZNK4Poco3Net4Impl21IPv6SocketAddressImpl4hostEv]+0x11): undefined reference to `Poco::Net::IPAddress::IPAddress(void const*, unsigned int, unsigned int)'
CMakeFiles/rcp.dir/main.cpp.o: In function `Poco::Net::Impl::IPv6SocketAddressImpl::~IPv6SocketAddressImpl()':
main.cpp:(.text._ZN4Poco3Net4Impl21IPv6SocketAddressImplD2Ev[_ZN4Poco3Net4Impl21IPv6SocketAddressImplD5Ev]+0x8): undefined reference to `Poco::Net::Impl::SocketAddressImpl::~SocketAddressImpl()'
CMakeFiles/rcp.dir/main.cpp.o: In function `Poco::Net::Impl::IPv6SocketAddressImpl::~IPv6SocketAddressImpl()':
main.cpp:(.text._ZN4Poco3Net4Impl21IPv6SocketAddressImplD0Ev[_ZN4Poco3Net4Impl21IPv6SocketAddressImplD5Ev]+0xc): undefined reference to `Poco::Net::Impl::SocketAddressImpl::~SocketAddressImpl()'
CMakeFiles/rcp.dir/main.cpp.o: In function `Poco::Net::Impl::IPv4SocketAddressImpl::~IPv4SocketAddressImpl()':
main.cpp:(.text._ZN4Poco3Net4Impl21IPv4SocketAddressImplD2Ev[_ZN4Poco3Net4Impl21IPv4SocketAddressImplD5Ev]+0x8): undefined reference to `Poco::Net::Impl::SocketAddressImpl::~SocketAddressImpl()'
CMakeFiles/rcp.dir/main.cpp.o: In function `Poco::Net::Impl::IPv4SocketAddressImpl::~IPv4SocketAddressImpl()':
main.cpp:(.text._ZN4Poco3Net4Impl21IPv4SocketAddressImplD0Ev[_ZN4Poco3Net4Impl21IPv4SocketAddressImplD5Ev]+0xc): undefined reference to `Poco::Net::Impl::SocketAddressImpl::~SocketAddressImpl()'
CMakeFiles/rcp.dir/main.cpp.o:(.rodata._ZTIN4Poco3Net4Impl21IPv4SocketAddressImplE[_ZTIN4Poco3Net4Impl21IPv4SocketAddressImplE]+0x10): undefined reference to `typeinfo for Poco::Net::Impl::SocketAddressImpl'
CMakeFiles/rcp.dir/main.cpp.o:(.rodata._ZTIN4Poco3Net4Impl21IPv6SocketAddressImplE[_ZTIN4Poco3Net4Impl21IPv6SocketAddressImplE]+0x10): undefined reference to `typeinfo for Poco::Net::Impl::SocketAddressImpl'
collect2: error: ld returned 1 exit status
CMakeFiles/rcp.dir/build.make:94: recipe for target '/home/john/projects/rightChoiceProperty/bin/rcp' failed
make[3]: *** [/home/john/projects/rightChoiceProperty/bin/rcp] Error 1
CMakeFiles/Makefile2:67: recipe for target 'CMakeFiles/rcp.dir/all' failed
make[2]: *** [CMakeFiles/rcp.dir/all] Error 2
CMakeFiles/Makefile2:79: recipe for target 'CMakeFiles/rcp.dir/rule' failed
make[1]: *** [CMakeFiles/rcp.dir/rule] Error 2
Makefile:118: recipe for target 'rcp' failed
make: *** [rcp] Error 2

我的问题出在哪里我今天搜索了所有但我找不到任何东西请帮助我解决这个问题。

谢谢大家

Answer 1

我解决了问题，正如上面评论中的“M.M”指南：

The output suggests you didn't actually link against Poco::Net. Another possibility might be if you're using Poco headers from a different version of Poco than the compiled library you are linking against

我删除了将包含更改为包含正确的库。

起初这是我的包含行：

#include "Poco/Net/ServerSocket.h"

改为

#include <Poco/Net/ServerSocket.h>

现在一切正常。

谢谢M.M

Poco 错误

Error with Poco

c++

poco-libraries