一些老的项目在使用SAEA.Socket相关库后，程序本地测试正常，结果上传到服务器上后提示：未能加载文件或程序集“System.ValueTuple, Version=0.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51”或它的某一个依赖项。找到的程序集清单定义与程序集引用不匹配。 (异常来自 HRESULT:0x80131040)，其实这个和是不是引用或缺少了System.ValueTuple无任何关系，主要原因就是项目比较老，下面仔细看看项目修改前的xml
1 <?xml version="1.0" encoding="utf-8"?> 2 <Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003"> 3 <PropertyGroup> 4 <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration> 5 <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform> 6 <ProjectGuid>{78CE982E-88D7-4959-AB4E-69DDDC183B1B}</ProjectGuid> 7 <OutputType>Exe</OutputType> 8 <AppDesignerFolder>Properties</AppDesignerFolder> 9 <RootNamespace>test</RootNamespace> 10 <AssemblyName>test</AssemblyName> 11 <TargetFrameworkVersion>v4.6.2</TargetFrameworkVersion> 12 <FileAlignment>512</FileAlignment> 13 <TargetFrameworkProfile /> 14 <PublishUrl>publish\</PublishUrl> 15 <Install>true</Install> 16 <InstallFrom>Disk</InstallFrom> 17 <UpdateEnabled>false</UpdateEnabled> 18 <UpdateMode>Foreground</UpdateMode> 19 <UpdateInterval>7</UpdateInterval> 20 <UpdateIntervalUnits>Days</UpdateIntervalUnits> 21 <UpdatePeriodically>false</UpdatePeriodically> 22 <UpdateRequired>false</UpdateRequired> 23 <MapFileExtensions>true</MapFileExtensions> 24 <ApplicationRevision>0</ApplicationRevision> 25 <ApplicationVersion>1.0.0.%2a</ApplicationVersion> 26 <IsWebBootstrapper>false</IsWebBootstrapper> 27 <UseApplicationTrust>false</UseApplicationTrust> 28 <BootstrapperEnabled>true</BootstrapperEnabled> 29 </PropertyGroup> 30 <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' "> 31 <PlatformTarget>x64</PlatformTarget> 32 <DebugSymbols>true</DebugSymbols> 33 <DebugType>full</DebugType> 34 <Optimize>false</Optimize> 35 <OutputPath>bin\Debug\</OutputPath> 36 <DefineConstants>DEBUG;TRACE</DefineConstants> 37 <ErrorReport>prompt</ErrorReport> 38 <WarningLevel>4</WarningLevel> 39 <Prefer32Bit>false</Prefer32Bit> 40 <AllowUnsafeBlocks>true</AllowUnsafeBlocks> 41 </PropertyGroup> 42 <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' "> 43 <PlatformTarget>x64</PlatformTarget> 44 <DebugType>pdbonly</DebugType> 45 <Optimize>true</Optimize> 46 <OutputPath>bin\Release\</OutputPath> 47 <DefineConstants>TRACE</DefineConstants> 48 <ErrorReport>prompt</ErrorReport> 49 <WarningLevel>4</WarningLevel> 50 <Prefer32Bit>false</Prefer32Bit> 51 <AllowUnsafeBlocks>true</AllowUnsafeBlocks> 52 </PropertyGroup>
这个项目是vs2015创建的，虽然现在用vs2017或者vs2019打开可以本地运行，但是只要放服务器上就会报未能加载文件或程序集“System.ValueTuple, Version=0.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51”或它的某一个依赖项。找到的程序集清单定义与程序集引用不匹配。所以直接将项目改成vs2017建的格式再看看，xml如下：
1 <?xml version="1.0" encoding="utf-8"?> 2 <Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003"> 3 <PropertyGroup> 4 <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration> 5 <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform> 6 <ProjectGuid>{78CE982E-88D7-4959-AB4E-69DDDC183B1B}</ProjectGuid> 7 <OutputType>Exe</OutputType> 8 <RootNamespace>test</RootNamespace> 9 <AssemblyName>test</AssemblyName> 10 <TargetFrameworkVersion>v4.6.2</TargetFrameworkVersion> 11 <FileAlignment>512</FileAlignment> 12 <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects> 13 <Deterministic>true</Deterministic> 14 </PropertyGroup> 15 <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' "> 16 <PlatformTarget>AnyCPU</PlatformTarget> 17 <DebugSymbols>true</DebugSymbols> 18 <DebugType>full</DebugType> 19 <Optimize>false</Optimize> 20 <OutputPath>bin\Debug\</OutputPath> 21 <DefineConstants>DEBUG;TRACE</DefineConstants> 22 <ErrorReport>prompt</ErrorReport> 23 <WarningLevel>4</WarningLevel> 24 </PropertyGroup> 25 <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' "> 26 <PlatformTarget>x64</PlatformTarget> 27 <DebugType>pdbonly</DebugType> 28 <Optimize>true</Optimize> 29 <OutputPath>bin\Release\</OutputPath> 30 <DefineConstants>TRACE</DefineConstants> 31 <ErrorReport>prompt</ErrorReport> 32 <WarningLevel>4</WarningLevel> 33 <Prefer32Bit>false</Prefer32Bit> 34 </PropertyGroup>
对比差别：
将左侧的改为右侧的配置，上述异常消失！