我是新的C++，我决定给它一个尝试VisualStudio C++，Boost，LLVM（它已经与Boost 1.55和Visual Studio 2013失败）和ReDIS。
这是一个小型的pet项目，用于解析从socket读取的原始数据并将其缓存到redis中。
当我试图链接到hiredis.lib时，出现了很多错误。
我知道我做错了什么，但我的考验变成了无尽的循环。不管怎样，我都能为您指点迷津，不胜感激。
谨致问候。
错误：
1>------ Build started: Project: example4, Configuration: Debug x64 ------
1> Source.cpp
1>LIBCMTD.lib(dosmap.obj) : error LNK2005: _errno already defined in MSVCRTD.lib(MSVCR120D.dll)
1>LIBCMTD.lib(dbgheap.obj) : error LNK2005: _CrtSetCheckCount already defined in MSVCRTD.lib(MSVCR120D.dll)
1>LIBCMTD.lib(dbgheap.obj) : error LNK2005: _aligned_free already defined in MSVCRTD.lib(MSVCR120D.dll)
1>LIBCMTD.lib(dbgheap.obj) : error LNK2005: _aligned_malloc already defined in MSVCRTD.lib(MSVCR120D.dll)
1>LIBCMTD.lib(dbgheap.obj) : error LNK2005: _calloc_dbg already defined in MSVCRTD.lib(MSVCR120D.dll)
1>LIBCMTD.lib(_wctype.obj) : error LNK2005: iswalnum already defined in MSVCRTD.lib(MSVCR120D.dll)
1>LIBCMTD.lib(_wctype.obj) : error LNK2005: iswalpha already defined in MSVCRTD.lib(MSVCR120D.dll)
1>LIBCMTD.lib(_wctype.obj) : error LNK2005: iswgraph already defined in MSVCRTD.lib(MSVCR120D.dll)
1>LIBCMTD.lib(_wctype.obj) : error LNK2005: iswspace already defined in MSVCRTD.lib(MSVCR120D.dll)
1>LIBCMTD.lib(mlock.obj) : error LNK2005: _lock already defined in MSVCRTD.lib(MSVCR120D.dll)
1>LIBCMTD.lib(mlock.obj) : error LNK2005: _unlock already defined in MSVCRTD.lib(MSVCR120D.dll)
1>LIBCMTD.lib(winapisupp.obj) : error LNK2005: __crtCaptureCurrentContext already defined in MSVCRTD.lib(MSVCR120D.dll)
1>LIBCMTD.lib(winapisupp.obj) : error LNK2005: __crtCapturePreviousContext already defined in MSVCRTD.lib(MSVCR120D.dll)
1>LIBCMTD.lib(winapisupp.obj) : error LNK2005: __crtSetUnhandledExceptionFilter already defined in MSVCRTD.lib(MSVCR120D.dll)
1>LIBCMTD.lib(winapisupp.obj) : error LNK2005: __crtTerminateProcess already defined in MSVCRTD.lib(MSVCR120D.dll)
1>LIBCMTD.lib(winapisupp.obj) : error LNK2005: __crtUnhandledException already defined in MSVCRTD.lib(MSVCR120D.dll)
1>LIBCMTD.lib(tidtable.obj) : error LNK2005: _getptd already defined in MSVCRTD.lib(MSVCR120D.dll)
1>LIBCMTD.lib(invarg.obj) : error LNK2005: _invalid_parameter already defined in MSVCRTD.lib(MSVCR120D.dll)
1>LIBCMTD.lib(sprintf.obj) : error LNK2005: sprintf already defined in MSVCRTD.lib(MSVCR120D.dll)
1>LIBCMTD.lib(dbghook.obj) : error LNK2005: __crt_debugger_hook already defined in MSVCRTD.lib(MSVCR120D.dll)
1>LIBCMTD.lib(_file.obj) : error LNK2005: __iob_func already defined in MSVCRTD.lib(MSVCR120D.dll)
1>LIBCMTD.lib(_file.obj) : error LNK2005: _lock_file already defined in MSVCRTD.lib(MSVCR120D.dll)
1>LIBCMTD.lib(_file.obj) : error LNK2005: _unlock_file already defined in MSVCRTD.lib(MSVCR120D.dll)
1>LIBCMTD.lib(crt0dat.obj) : error LNK2005: _amsg_exit already defined in MSVCRTD.lib(MSVCR120D.dll)
1>LIBCMTD.lib(crt0dat.obj) : error LNK2005: _cexit already defined in MSVCRTD.lib(MSVCR120D.dll)
1>LIBCMTD.lib(crt0dat.obj) : error LNK2005: _exit already defined in MSVCRTD.lib(MSVCR120D.dll)
1>LIBCMTD.lib(crt0dat.obj) : error LNK2005: _initterm_e already defined in MSVCRTD.lib(MSVCR120D.dll)
1>LIBCMTD.lib(crt0dat.obj) : error LNK2005: exit already defined in MSVCRTD.lib(MSVCR120D.dll)
1>LIBCMTD.lib(errmode.obj) : error LNK2005: __set_app_type already defined in MSVCRTD.lib(MSVCR120D.dll)
1>LIBCMTD.lib(winxfltr.obj) : error LNK2005: _XcptFilter already defined in MSVCRTD.lib(MSVCR120D.dll)
1>LIBCMTD.lib(wsetloca.obj) : error LNK2005: _configthreadlocale already defined in MSVCRTD.lib(MSVCR120D.dll)
1>LIBCMTD.lib(vsnprnc.obj) : error LNK2005: vsprintf_s already defined in MSVCRTD.lib(MSVCR120D.dll)
1>LIBCMTD.lib(fflush.obj) : error LNK2005: fflush already defined in MSVCRTD.lib(MSVCR120D.dll)
1>LIBCMTD.lib(hooks.obj) : error LNK2005: "void __cdecl terminate(void)" (?terminate@@YAXXZ) already defined in MSVCRTD.lib(MSVCR120D.dll)
1>LIBCMTD.lib(crt0init.obj) : error LNK2005: __xi_a already defined in MSVCRTD.lib(cinitexe.obj)
1>LIBCMTD.lib(crt0init.obj) : error LNK2005: __xi_z already defined in MSVCRTD.lib(cinitexe.obj)
1>LIBCMTD.lib(crt0init.obj) : error LNK2005: __xc_a already defined in MSVCRTD.lib(cinitexe.obj)
1>LIBCMTD.lib(crt0init.obj) : error LNK2005: __xc_z already defined in MSVCRTD.lib(cinitexe.obj)
1>LIBCMTD.lib(dbgrptw.obj) : error LNK2005: _CrtDbgReportW already defined in MSVCRTD.lib(MSVCR120D.dll)
1>LIBCMTD.lib(printf.obj) : error LNK2005: printf already defined in MSVCRTD.lib(MSVCR120D.dll)
1>MSVCRTD.lib(MSVCR120D.dll) : error LNK2005: strcpy_s already defined in LIBCMTD.lib(strcpy_s.obj)
1>MSVCRTD.lib(MSVCR120D.dll) : error LNK2005: iswdigit already defined in LIBCMTD.lib(_wctype.obj)
1>LINK : warning LNK4098: defaultlib 'MSVCRTD' conflicts with use of other libs; use /NODEFAULTLIB:library
1>LINK : warning LNK4098: defaultlib 'LIBCMTD' conflicts with use of other libs; use /NODEFAULTLIB:library
1>hiredis.lib(hiredis.obj) : error LNK2019: unresolved external symbol strerror_r referenced in function __redisSetError
1>hiredis.lib(net.obj) : error LNK2001: unresolved external symbol strerror_r
1>hiredis.lib(hiredis.obj) : error LNK2001: unresolved external symbol fdapi_close
1>hiredis.lib(net.obj) : error LNK2001: unresolved external symbol fdapi_close
1>hiredis.lib(net.obj) : error LNK2001: unresolved external symbol fcntl
1>hiredis.lib(net.obj) : error LNK2001: unresolved external symbol poll
1>F:\SoftwareDevelopment\cplusplus\example4\x64\Debug\example4.exe : fatal error LNK1120: 4 unresolved externals
========== Build: 0 succeeded, 1 failed, 2 up-to-date, 0 skipped ==========
项目文件：
<?xml version="1.0" encoding="utf-8"?>
<Project DefaultTargets="Build" ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<ItemGroup Label="ProjectConfigurations">
<ProjectConfiguration Include="Debug|Win32">
<Configuration>Debug</Configuration>
<Platform>Win32</Platform>
</ProjectConfiguration>
<ProjectConfiguration Include="Debug|x64">
<Configuration>Debug</Configuration>
<Platform>x64</Platform>
</ProjectConfiguration>
<ProjectConfiguration Include="Release|Win32">
<Configuration>Release</Configuration>
<Platform>Win32</Platform>
</ProjectConfiguration>
<ProjectConfiguration Include="Release|x64">
<Configuration>Release</Configuration>
<Platform>x64</Platform>
</ProjectConfiguration>
</ItemGroup>
<PropertyGroup Label="Globals">
<ProjectGuid>{FADCAD1B-D309-427E-8A12-2140E0CC1E3C}</ProjectGuid>
<Keyword>Win32Proj</Keyword>
<RootNamespace>example4</RootNamespace>
</PropertyGroup>
<Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
<ConfigurationType>Application</ConfigurationType>
<UseDebugLibraries>true</UseDebugLibraries>
<PlatformToolset>v120</PlatformToolset>
<CharacterSet>Unicode</CharacterSet>
</PropertyGroup>
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
<ConfigurationType>Application</ConfigurationType>
<UseDebugLibraries>true</UseDebugLibraries>
<PlatformToolset>v120</PlatformToolset>
<CharacterSet>Unicode</CharacterSet>
</PropertyGroup>
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
<ConfigurationType>Application</ConfigurationType>
<UseDebugLibraries>false</UseDebugLibraries>
<PlatformToolset>v120</PlatformToolset>
<WholeProgramOptimization>true</WholeProgramOptimization>
<CharacterSet>Unicode</CharacterSet>
</PropertyGroup>
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
<ConfigurationType>Application</ConfigurationType>
<UseDebugLibraries>false</UseDebugLibraries>
<PlatformToolset>v120</PlatformToolset>
<WholeProgramOptimization>true</WholeProgramOptimization>
<CharacterSet>Unicode</CharacterSet>
</PropertyGroup>
<Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
<ImportGroup Label="ExtensionSettings">
</ImportGroup>
<ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
<Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
</ImportGroup>
<ImportGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="PropertySheets">
<Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
</ImportGroup>
<ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
<Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
</ImportGroup>
<ImportGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="PropertySheets">
<Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
</ImportGroup>
<PropertyGroup Label="UserMacros" />
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
<LinkIncremental>true</LinkIncremental>
</PropertyGroup>
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
<LinkIncremental>true</LinkIncremental>
</PropertyGroup>
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
<LinkIncremental>false</LinkIncremental>
</PropertyGroup>
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
<LinkIncremental>false</LinkIncremental>
</PropertyGroup>
<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
<ClCompile>
<PrecompiledHeader>NotUsing</PrecompiledHeader>
<WarningLevel>Level3</WarningLevel>
<Optimization>Disabled</Optimization>
<PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
<AdditionalIncludeDirectories>F:\Software\boost_1_55_0;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
<DebugInformationFormat>None</DebugInformationFormat>
<MultiProcessorCompilation>true</MultiProcessorCompilation>
<MinimalRebuild>false</MinimalRebuild>
</ClCompile>
<Link>
<SubSystem>Console</SubSystem>
<GenerateDebugInformation>true</GenerateDebugInformation>
<AdditionalLibraryDirectories>F:\Software\boost_1_55_0\stage\lib;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
<AdditionalDependencies>%(AdditionalDependencies)</AdditionalDependencies>
</Link>
<PostBuildEvent>
<Command>copy *.config "$(TargetDir)*.config"</Command>
</PostBuildEvent>
</ItemDefinitionGroup>
<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
<ClCompile>
<PrecompiledHeader>NotUsing</PrecompiledHeader>
<WarningLevel>Level3</WarningLevel>
<Optimization>Disabled</Optimization>
<PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
<AdditionalIncludeDirectories>F:\Software\boost_1_55_0;F:\Software\redis\deps\hiredis;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
<DebugInformationFormat>None</DebugInformationFormat>
<MultiProcessorCompilation>true</MultiProcessorCompilation>
<MinimalRebuild>false</MinimalRebuild>
</ClCompile>
<Link>
<SubSystem>Console</SubSystem>
<GenerateDebugInformation>true</GenerateDebugInformation>
<AdditionalLibraryDirectories>F:\Software\boost_1_55_0\stage\lib;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
<AdditionalDependencies>%(AdditionalDependencies)</AdditionalDependencies>
</Link>
<PostBuildEvent>
<Command>copy *.config "$(TargetDir)*.config"</Command>
</PostBuildEvent>
</ItemDefinitionGroup>
<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
<ClCompile>
<WarningLevel>Level3</WarningLevel>
<PrecompiledHeader>
</PrecompiledHeader>
<Optimization>MaxSpeed</Optimization>
<FunctionLevelLinking>true</FunctionLevelLinking>
<IntrinsicFunctions>true</IntrinsicFunctions>
<PreprocessorDefinitions>WIN32;NDEBUG;_CONSOLE;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
</ClCompile>
<Link>
<SubSystem>Console</SubSystem>
<GenerateDebugInformation>true</GenerateDebugInformation>
<EnableCOMDATFolding>true</EnableCOMDATFolding>
<OptimizeReferences>true</OptimizeReferences>
</Link>
</ItemDefinitionGroup>
<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
<ClCompile>
<WarningLevel>Level3</WarningLevel>
<PrecompiledHeader>
</PrecompiledHeader>
<Optimization>MaxSpeed</Optimization>
<FunctionLevelLinking>true</FunctionLevelLinking>
<IntrinsicFunctions>true</IntrinsicFunctions>
<PreprocessorDefinitions>WIN32;NDEBUG;_CONSOLE;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
</ClCompile>
<Link>
<SubSystem>Console</SubSystem>
<GenerateDebugInformation>true</GenerateDebugInformation>
<EnableCOMDATFolding>true</EnableCOMDATFolding>
<OptimizeReferences>true</OptimizeReferences>
</Link>
</ItemDefinitionGroup>
<ItemGroup>
<None Include="app.config" />
<None Include="log.config">
<DeploymentContent>true</DeploymentContent>
<ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
</ExcludedFromBuild>
<ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
</ExcludedFromBuild>
</None>
</ItemGroup>
<ItemGroup>
<ClCompile Include="Source.cpp" />
</ItemGroup>
<ItemGroup>
<ProjectReference Include="..\..\..\..\Software\redis\msvs\hiredis\hiredis.vcxproj">
<Project>{13e85053-54b3-487b-8ddb-3430b1c1b3bf}</Project>
<Private>true</Private>
<ReferenceOutputAssembly>true</ReferenceOutputAssembly>
<CopyLocalSatelliteAssemblies>false</CopyLocalSatelliteAssemblies>
<LinkLibraryDependencies>true</LinkLibraryDependencies>
<UseLibraryDependencyInputs>false</UseLibraryDependencyInputs>
</ProjectReference>
</ItemGroup>
<Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
<ImportGroup Label="ExtensionTargets" />
</Project>
最佳答案
构建使用hiredis的可执行文件时，请确保链接到
Configuration Properties > Linker > Input > Additional Dependencies
另外，您可能希望将正在生成的所有项目的运行库更改为dll版本（
hiredis.lib）Configuration Properties > C/C++ > Code Generation > Runtime-Library
关于c++ - visual studio c++ redis(msopentech port)客户端，hiredis，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/23824286/