Question

将.NET核心库（DNXCore50）从VS 2015迁移到VS 2017时出现此错误。

框架的参考组件＆＃34; DNXCore ，版本= v5.0＆＃34;没找到。

我的项目文件目前如下所示:(在VS 2017迁移向导迁移我的＆＃34; project.json＆＃34;到.csproj文件之后）

<Project Sdk="Microsoft.NET.Sdk">

  <PropertyGroup>
    <Description>An FTP and FTPS library for .NET, optimized for speed. Provides extensive FTP commands, file uploads/downloads, SSL/TLS connections and FTP proxies.</Description>
    <VersionPrefix>16.3.0</VersionPrefix>
    <Authors>J.P. Trosclair;Harsh Gupta</Authors>
    <TargetFrameworks>netstandard1.6;dnxcore50</TargetFrameworks>
    <DefineConstants>$(DefineConstants);CORE</DefineConstants>
    <RootNamespace>FluentFTP</RootNamespace>
    <AssemblyName>FluentFTP</AssemblyName>
    <OutputType>Library</OutputType>
    <PackageId>FluentFTP</PackageId>
    <NetStandardImplicitPackageVersion>1.6.0</NetStandardImplicitPackageVersion>
    <TargetFrameworkIdentifier>DNXCore</TargetFrameworkIdentifier>
    <TargetFrameworkVersion>v5.0</TargetFrameworkVersion>
    <GenerateAssemblyTitleAttribute>false</GenerateAssemblyTitleAttribute>
    <GenerateAssemblyDescriptionAttribute>false</GenerateAssemblyDescriptionAttribute>
    <GenerateAssemblyConfigurationAttribute>false</GenerateAssemblyConfigurationAttribute>
    <GenerateAssemblyCompanyAttribute>false</GenerateAssemblyCompanyAttribute>
    <GenerateAssemblyProductAttribute>false</GenerateAssemblyProductAttribute>
    <GenerateAssemblyCopyrightAttribute>false</GenerateAssemblyCopyrightAttribute>
    <GenerateAssemblyVersionAttribute>false</GenerateAssemblyVersionAttribute>
    <GenerateNeutralResourcesLanguageAttribute>false</GenerateNeutralResourcesLanguageAttribute>
  </PropertyGroup>

  <ItemGroup>
    <PackageReference Include="System.IO" Version="4.3.0.0" />
    <PackageReference Include="System.Net.NameResolution" Version="4.3.0.0" />
    <PackageReference Include="System.Net.Sockets" Version="4.3.0.0" />
    <PackageReference Include="System.Net.Security" Version="4.3.0.0" />
  </ItemGroup>

</Project>

我编译时遇到上述错误。我尝试过的事情：

改为使用 .NETPortable v5.0 。这里有太多错过的课程。
改为使用 .NETCoreApp v1.0 。每个班级都缺失了。我使用的是错误的版本吗？
使用 DNXCore 。没有错过的课程。只是来自VS的一个错误。

我应该使用什么代替DNXCore 5.0？我需要最新的API，如TlsStream和Uri，不存在的东西或有没有办法强制编译器编译？请注意，当我使用VS 2015进行编译时，这是一个工作库。现在我已经切换到VS 2017了，我再也无法编译我的项目了！在.NET Core或.NET Portable中。

Answer 1

dnxcore50不再用作TargetFramework。您可以看到1.1.0 documentation for netstandard将其列为已弃用的名字对象。

有关最新的.NET标准文档，请参阅.NET Standard FAQ。

你可以完全放弃第二个TFM。 netstandard1.6可以正常使用.NET Core。

<Project Sdk="Microsoft.NET.Sdk">

  <PropertyGroup>
    <Description>An FTP and FTPS library for .NET, optimized for speed. Provides extensive FTP commands, file uploads/downloads, SSL/TLS connections and FTP proxies.</Description>
    <VersionPrefix>16.3.0</VersionPrefix>
    <Authors>J.P. Trosclair;Harsh Gupta</Authors>
    <TargetFramework>netstandard1.6</TargetFramework>
    <DefineConstants>$(DefineConstants);CORE</DefineConstants>
    <RootNamespace>FluentFTP</RootNamespace>
    <AssemblyName>FluentFTP</AssemblyName>
    <OutputType>Library</OutputType>
    <PackageId>FluentFTP</PackageId>
    <NetStandardImplicitPackageVersion>1.6.0</NetStandardImplicitPackageVersion>
    <GenerateAssemblyTitleAttribute>false</GenerateAssemblyTitleAttribute>
    <GenerateAssemblyDescriptionAttribute>false</GenerateAssemblyDescriptionAttribute>
    <GenerateAssemblyConfigurationAttribute>false</GenerateAssemblyConfigurationAttribute>
    <GenerateAssemblyCompanyAttribute>false</GenerateAssemblyCompanyAttribute>
    <GenerateAssemblyProductAttribute>false</GenerateAssemblyProductAttribute>
    <GenerateAssemblyCopyrightAttribute>false</GenerateAssemblyCopyrightAttribute>
    <GenerateAssemblyVersionAttribute>false</GenerateAssemblyVersionAttribute>
    <GenerateNeutralResourcesLanguageAttribute>false</GenerateNeutralResourcesLanguageAttribute>
  </PropertyGroup>

  <ItemGroup>
    <PackageReference Include="System.IO" Version="4.3.0.0" />
    <PackageReference Include="System.Net.NameResolution" Version="4.3.0.0" />
    <PackageReference Include="System.Net.Sockets" Version="4.3.0.0" />
    <PackageReference Include="System.Net.Security" Version="4.3.0.0" />
  </ItemGroup>

</Project>

我还删除了设置TargetFrameworkIdentifier和TargetFrameworkVersion，因为这些属性是从TargetFramework推断出来的。

Answer 2

嗯，这太令人惊讶了！

我的lib已成功编译 .NETStandard v1.6 ！

在此处包含我的XML，以防其他人遇到此问题：

<Project Sdk="Microsoft.NET.Sdk">

  <PropertyGroup>
    <Description>An FTP and FTPS library for .NET, optimized for speed. Provides extensive FTP commands, file uploads/downloads, SSL/TLS connections and FTP proxies.</Description>
    <VersionPrefix>16.3.0</VersionPrefix>
    <Authors>J.P. Trosclair;Harsh Gupta</Authors>
    <TargetFrameworks>netstandard1.6;dnxcore50</TargetFrameworks>
    <DefineConstants>$(DefineConstants);CORE</DefineConstants>
    <RootNamespace>FluentFTP</RootNamespace>
    <AssemblyName>FluentFTP</AssemblyName>
    <OutputType>Library</OutputType>
    <PackageId>FluentFTP</PackageId>
    <NetStandardImplicitPackageVersion>1.6.0</NetStandardImplicitPackageVersion>
    <TargetFrameworkIdentifier>.NETStandard</TargetFrameworkIdentifier>
    <TargetFrameworkVersion>v1.6</TargetFrameworkVersion>
    <GenerateAssemblyTitleAttribute>false</GenerateAssemblyTitleAttribute>
    <GenerateAssemblyDescriptionAttribute>false</GenerateAssemblyDescriptionAttribute>
    <GenerateAssemblyConfigurationAttribute>false</GenerateAssemblyConfigurationAttribute>
    <GenerateAssemblyCompanyAttribute>false</GenerateAssemblyCompanyAttribute>
    <GenerateAssemblyProductAttribute>false</GenerateAssemblyProductAttribute>
    <GenerateAssemblyCopyrightAttribute>false</GenerateAssemblyCopyrightAttribute>
    <GenerateAssemblyVersionAttribute>false</GenerateAssemblyVersionAttribute>
    <GenerateNeutralResourcesLanguageAttribute>false</GenerateNeutralResourcesLanguageAttribute>
  </PropertyGroup>

  <ItemGroup>
    <PackageReference Include="System.IO" Version="4.3.0.0" />
    <PackageReference Include="System.Net.NameResolution" Version="4.3.0.0" />
    <PackageReference Include="System.Net.Sockets" Version="4.3.0.0" />
    <PackageReference Include="System.Net.Security" Version="4.3.0.0" />
  </ItemGroup>

</Project>

.NET Core - 框架的引用程序集＆＃34; DNXCore，Version = v5.0＆＃34;没找到

2 个答案: