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c# - 无法在 Visual Studio 2017 中打开项目

问题描述

我正在尝试在 Visual Studio 2017 版本 15.8.4 中打开一个 Xamarin 项目，但它没有打开，它显示（需要迁移）。

在此处输入图像描述

当我尝试重新加载时，它会弹出此弹出窗口。

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当我单击确定按钮时，它会将我重定向到此页面。

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当我单击链接时，它会将我重定向到此页面。

https://docs.microsoft.com/en-us/visualstudio/porting/porting-migrating-and-upgrading-visual-studio-projects?view=vs-2015。

我已经浏览了上面的链接，但我无法解决问题。

我可以在 Visual Studio 2015 中打开这个项目。

Visual Studio 2017 关于窗口。

在此处输入图像描述

csproj 文件

<?xml version="1.0" encoding="utf-8"?>
<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
  <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
  <PropertyGroup>
    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
    <ProjectGuid>{D6C2377F-23C1-4998-A72F-622632553B58}</ProjectGuid>
    <OutputType>AppContainerExe</OutputType>
    <AppDesignerFolder>Properties</AppDesignerFolder>
    <RootNamespace>NECMobilePOS.Client.Windows</RootNamespace>
    <AssemblyName>NECMobilePOS.Client.Windows</AssemblyName>
    <DefaultLanguage>en-US</DefaultLanguage>
    <TargetPlatformVersion>8.1</TargetPlatformVersion>
    <MinimumVisualStudioVersion>12</MinimumVisualStudioVersion>
    <FileAlignment>512</FileAlignment>
    <ProjectTypeGuids>{BC8A1FFA-BEE3-4634-8014-F334798102B3};{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</ProjectTypeGuids>
    <SccProjectName>SAK</SccProjectName>
    <SccLocalPath>SAK</SccLocalPath>
    <SccAuxPath>SAK</SccAuxPath>
    <SccProvider>SAK</SccProvider>
    <NuGetPackageImportStamp>
    </NuGetPackageImportStamp>
    <AppxAutoIncrementPackageRevision>True</AppxAutoIncrementPackageRevision>
    <AppxPackageDir>bin\Release\</AppxPackageDir>
    <AppxBundlePlatforms>x86</AppxBundlePlatforms>
    <AppxBundle>Auto</AppxBundle>
    <PackageCertificateThumbprint>54D50F2637891A440C3FCC71BB05D56DE984BFC0</PackageCertificateThumbprint>
    <PackageCertificateKeyFile>NECMobilePOS.Client.Windows_TemporaryKey.pfx</PackageCertificateKeyFile>
  </PropertyGroup>
  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
    <PlatformTarget>x86</PlatformTarget>
    <DebugSymbols>true</DebugSymbols>
    <DebugType>full</DebugType>
    <Optimize>false</Optimize>
    <OutputPath>bin\Debug\</OutputPath>
    <DefineConstants>TRACE;DEBUG;NETFX_CORE;WINDOWS_APP;POSTYPE_RESTO;</DefineConstants>
    <ErrorReport>prompt</ErrorReport>
    <WarningLevel>4</WarningLevel>
  </PropertyGroup>
  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
    <PlatformTarget>AnyCPU</PlatformTarget>
    <DebugType>pdbonly</DebugType>
    <Optimize>true</Optimize>
    <OutputPath>bin\Release\</OutputPath>
    <DefineConstants>TRACE;NETFX_CORE;WINDOWS_APP;POSTYPE_RESTO;</DefineConstants>
    <ErrorReport>prompt</ErrorReport>
    <WarningLevel>4</WarningLevel>
  </PropertyGroup>
  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Debug|ARM'">
    <DebugSymbols>true</DebugSymbols>
    <OutputPath>bin\ARM\Debug\</OutputPath>
    <DefineConstants>TRACE;DEBUG;WINDOWS_APP;POSTYPE_RESTO;</DefineConstants>
    <NoWarn>;2008</NoWarn>
    <DebugType>full</DebugType>
    <PlatformTarget>ARM</PlatformTarget>
    <UseVSHostingProcess>false</UseVSHostingProcess>
    <ErrorReport>prompt</ErrorReport>
    <Prefer32Bit>true</Prefer32Bit>
  </PropertyGroup>
  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Release|ARM'">
    <OutputPath>bin\ARM\Release\</OutputPath>
    <DefineConstants>TRACE;NETFX_CORE;WINDOWS_APP</DefineConstants>
    <Optimize>true</Optimize>
    <NoWarn>;2008</NoWarn>
    <DebugType>pdbonly</DebugType>
    <PlatformTarget>ARM</PlatformTarget>
    <UseVSHostingProcess>false</UseVSHostingProcess>
    <ErrorReport>prompt</ErrorReport>
    <Prefer32Bit>true</Prefer32Bit>
  </PropertyGroup>
  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Debug|x64'">
    <DebugSymbols>true</DebugSymbols>
    <OutputPath>bin\x64\Debug\</OutputPath>
    <DefineConstants>DEBUG;TRACE;NETFX_CORE;WINDOWS_APP</DefineConstants>
    <NoWarn>;2008</NoWarn>
    <DebugType>full</DebugType>
    <PlatformTarget>x64</PlatformTarget>
    <UseVSHostingProcess>false</UseVSHostingProcess>
    <ErrorReport>prompt</ErrorReport>
    <Prefer32Bit>true</Prefer32Bit>
  </PropertyGroup>
  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Release|x64'">
    <OutputPath>bin\x64\Release\</OutputPath>
    <DefineConstants>TRACE;NETFX_CORE;WINDOWS_APP</DefineConstants>
    <Optimize>true</Optimize>
    <NoWarn>;2008</NoWarn>
    <DebugType>pdbonly</DebugType>
    <PlatformTarget>x64</PlatformTarget>
    <UseVSHostingProcess>false</UseVSHostingProcess>
    <ErrorReport>prompt</ErrorReport>
    <Prefer32Bit>true</Prefer32Bit>
  </PropertyGroup>
  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Debug|x86'">
    <DebugSymbols>true</DebugSymbols>
    <OutputPath>bin\x86\Debug\</OutputPath>
    <DefineConstants>TRACE;DEBUG;NETFX_CORE;WINDOWS_APP;POSTYPE_RESTO;</DefineConstants>
    <NoWarn>;2008</NoWarn>
    <DebugType>full</DebugType>
    <PlatformTarget>x86</PlatformTarget>
    <UseVSHostingProcess>false</UseVSHostingProcess>
    <ErrorReport>prompt</ErrorReport>
    <Prefer32Bit>true</Prefer32Bit>
    <RunCodeAnalysis>false</RunCodeAnalysis>
    <WarningLevel>3</WarningLevel>
    <DocumentationFile>
    </DocumentationFile>
  </PropertyGroup>
  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Release|x86'">
    <OutputPath>bin\x86\Release\</OutputPath>
    <DefineConstants>TRACE;NETFX_CORE;WINDOWS_APP;POSTYPE_RESTO;</DefineConstants>
    <Optimize>true</Optimize>
    <NoWarn>;2008</NoWarn>
    <DebugType>pdbonly</DebugType>
    <PlatformTarget>x86</PlatformTarget>
    <UseVSHostingProcess>false</UseVSHostingProcess>
    <ErrorReport>prompt</ErrorReport>
    <Prefer32Bit>true</Prefer32Bit>
  </PropertyGroup>
  <PropertyGroup Condition=" '$(VisualStudioVersion)' == '' or '$(VisualStudioVersion)' &lt; '12.0' ">
    <VisualStudioVersion>12.0</VisualStudioVersion>
  </PropertyGroup>
  <PropertyGroup>
    <SignAssembly>false</SignAssembly>
  </PropertyGroup>
  <PropertyGroup>
    <DelaySign>false</DelaySign>
  </PropertyGroup>
  <PropertyGroup>
    <AssemblyOriginatorKeyFile>NECMobilePOS.Client.Windows_TemporaryKey.pfx</AssemblyOriginatorKeyFile>
  </PropertyGroup>
  <Import Project="$(MSBuildExtensionsPath)\Microsoft\WindowsXaml\v$(VisualStudioVersion)\Microsoft.Windows.UI.Xaml.CSharp.targets" />
  <Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
    <PropertyGroup>
      <ErrorText>This project references NuGet package(s) that are missing on this computer. Use NuGet Package Restore to download them.  For more information, see http://go.microsoft.com/fwlink/?LinkID=322105. The missing file is {0}.</ErrorText>
    </PropertyGroup>
    <Error Condition="!Exists('..\packages\SQLitePCL.raw.0.8.6\build\win81\SQLitePCL.raw.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\SQLitePCL.raw.0.8.6\build\win81\SQLitePCL.raw.targets'))" />
    <Error Condition="!Exists('..\packages\Xamarin.Forms.2.2.0.45\build\portable-win+net45+wp80+win81+wpa81+MonoAndroid10+MonoTouch10+Xamarin.iOS10\Xamarin.Forms.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\Xamarin.Forms.2.2.0.45\build\portable-win+net45+wp80+win81+wpa81+MonoAndroid10+MonoTouch10+Xamarin.iOS10\Xamarin.Forms.targets'))" />
  </Target>
  <Import Project="..\packages\SQLitePCL.raw.0.8.6\build\win81\SQLitePCL.raw.targets" Condition="Exists('..\packages\SQLitePCL.raw.0.8.6\build\win81\SQLitePCL.raw.targets')" />
  <Import Project="..\packages\Xamarin.Forms.2.2.0.45\build\portable-win+net45+wp80+win81+wpa81+MonoAndroid10+MonoTouch10+Xamarin.iOS10\Xamarin.Forms.targets" Condition="Exists('..\packages\Xamarin.Forms.2.2.0.45\build\portable-win+net45+wp80+win81+wpa81+MonoAndroid10+MonoTouch10+Xamarin.iOS10\Xamarin.Forms.targets')" />
  <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
       Other similar extension points exist, see Microsoft.Common.targets.
  <Target Name="BeforeBuild">
  </Target>
  <Target Name="AfterBuild">
  </Target>
  -->
</Project>

标签： c#visual-studioxamarinvisual-studio-2017

解决方案

我已经找到了问题背后的原因。

我有基于 VS 2015 构建的 Xamarin Windows 8.1 应用程序项目。但我试图在 VS 2017 中打开它。VS 2017 不支持 Windows 8.1 应用程序，它支持 UWP 应用程序。

所以你有两个选择。

  1. 如果您只想在 VS 2017 中工作，则需要手动将 Windows 8.1 应用转换为 UWP 应用。
  2. 只需对 VS 2015 感到满意并开发您的 Windows 8.1 应用程序。

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