1

Question

我是c ++的新手，我决定尝试使用visual studio c ++，boost，llvm（已经使用boost 1.55和visual studio 2013失败）和redis。

这是一个小型宠物项目，用于将从套接字和缓存读取的原始数据解析为redis。

当我尝试链接到hiredis.lib时，我遇到了很多错误。

我知道我做错了什么，但我的试验变成了无休止的循环。我可以指导它，非常感谢。

亲切的问候。

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：

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<Project DefaultTargets="Build" ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
  <ItemGroup Label="ProjectConfigurations">
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    <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)|$(Platform)'=='Debug|Win32'" Label="Configuration">
    <ConfigurationType>Application</ConfigurationType>
    <UseDebugLibraries>true</UseDebugLibraries>
    <PlatformToolset>v120</PlatformToolset>
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  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
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    <CharacterSet>Unicode</CharacterSet>
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  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
    <ConfigurationType>Application</ConfigurationType>
    <UseDebugLibraries>false</UseDebugLibraries>
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    <WholeProgramOptimization>true</WholeProgramOptimization>
    <CharacterSet>Unicode</CharacterSet>
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  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
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  <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" />
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  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
    <LinkIncremental>true</LinkIncremental>
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    <LinkIncremental>true</LinkIncremental>
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  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
    <LinkIncremental>false</LinkIncremental>
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  <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>
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    <PostBuildEvent>
      <Command>copy *.config "$(TargetDir)*.config"</Command>
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      <PrecompiledHeader>NotUsing</PrecompiledHeader>
      <WarningLevel>Level3</WarningLevel>
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      <AdditionalIncludeDirectories>F:\Software\boost_1_55_0;F:\Software\redis\deps\hiredis;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
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      <MultiProcessorCompilation>true</MultiProcessorCompilation>
      <MinimalRebuild>false</MinimalRebuild>
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Answer 1

在构建使用hiredis的可执行文件时，请务必在

下链接 hiredis.lib和Win32_Interop.lib
Configuration Properties > Linker > Input > Additional Dependencies

此外，您可能希望将正在构建的所有项目的运行时库更改为dll版本（Multi-threaded DLL (/MD)）

Configuration Properties > C/C++ > Code Generation > Runtime-Library

Answer 2

您需要关联hiredis.lib和Win32_Interop.lib。

您看到的错误是因为您使用的hiredis.lib是使用（多线程（/ MT））构建的，并且您的可执行文件使用/ MD运行时库。

您可以在

下进行更改

Configuration Properties > C/C++ > Code Generation > Runtime-Library

从https://github.com/MSOpenTech/redis下载源代码并使用/ MD标志和正确的平台（Win32或x64）重建hiredis.lib和Win32_Interop.lib。这两个项目都在/msvc/RedisServer.sln。

Answer 3

首先，设置项目属性

1

项目＆gt;物业＆gt;配置属性

一般＆gt;项目默认值＆gt;字符集使用多字节字符集

2

C / C ++＆gt;代码生成＆gt;运行时库多线程调试（/ MTd）

然后尝试编译你的项目...

新错误似乎超出了）

1＆gt; C：\ Program Files（x86）\ MSBuild \ Microsoft.Cpp \ v4.0 \ V120 \ Microsoft.CppBuild.targets（376,5）：错误MSB8031：为非Unicode字符构建MFC项目set已弃用。您必须将项目属性更改为Unicode或下载其他库。有关详细信息，请参阅http://go.microsoft.com/fwlink/p/?LinkId=286820。

您必须下载＆＃34; MFC MBCS DLL＆＃34;

我尝试解决此问题，并下载并安装此文件...

visual studio c ++ redis（msopentech port）客户端，hiredis

3 个答案:

1

2