Question

我正在尝试使用dotnet restore解决nugget包，我收到此错误：Unable to resolve 'Microsoft.NETCore.App (>= 2.1.0)' for '.NETCoreApp,Version=v2.1'

这是我的.csproj文件

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

  <PropertyGroup>
    <TargetFramework>netcoreapp2.1</TargetFramework>
  </PropertyGroup>

  <ItemGroup>
    <PackageReference Include="Autofac" Version="4.5.0" />
    <PackageReference Include="Autofac.Extensions.DependencyInjection" Version="4.1.0" />
    <PackageReference Include="Autofac.Extras.Moq" Version="4.2.0" />
    <PackageReference Include="BCrypt.Net-Core" Version="1.4.0" />
    <PackageReference Include="Easy.MessageHub" Version="3.2.1" />
    <PackageReference Include="hangfire" Version="1.6.17" />
    <PackageReference Include="Hangfire.MemoryStorage" Version="1.5.2" />
    <PackageReference Include="Microsoft.AspNetCore.App" Version="2.1.0-rc1-final" />
    <PackageReference Include="Microsoft.AspNetCore.Mvc" Version="2.1.0-rc1-final" />
    <PackageReference Include="Microsoft.Extensions.Configuration" Version="2.1.0-rc1-final" />
    <PackageReference Include="MongoDB.Driver" Version="2.4.4" />
    <PackageReference Include="Swashbuckle.AspNetCore" Version="1.1.0" />
    <PackageReference Include="System.Runtime.Extensions" Version="4.3.0" />
  </ItemGroup>

  <Target Name="ApplyXdtConfigTransform" BeforeTargets="_TransformWebConfig">
    <PropertyGroup>
      <_SourceWebConfig>$(MSBuildThisFileDirectory)Web.config</_SourceWebConfig>
      <_XdtTransform>$(MSBuildThisFileDirectory)Web.$(Configuration).config</_XdtTransform>
      <_TargetWebConfig>$(PublishDir)Web.config</_TargetWebConfig>
    </PropertyGroup>
    <Exec Command="dotnet transform-xdt --xml &quot;$(_SourceWebConfig)&quot; --transform &quot;$(_XdtTransform)&quot; --output &quot;$(_TargetWebConfig)&quot;" Condition="Exists('$(_XdtTransform)')" />
  </Target>
</Project>

我安装了dotnet-sdk-2.1.300-rc1-008673-win-x64，我使用的是Visual Studio 2017 v15.2

Answer 1

问题是Visual Studio版本。

解决方案是创建指向dotnet \ sdk {{version}} \ Sdks的MSBuildSdksPath环境变量，如以下链接https://github.com/aspnet/Announcements/issues/231

Answer 2

我必须在config下的 NuGet.config 文件中添加以下内容 C：\ Users \ userid \ AppData \ Roaming \ NuGet ，以解决上述问题

<configuration>
<packageSources>
    <add key="nuget.org" value="https://api.nuget.org/v3/index.json" protocolVersion="3" />
    <add key="nuget.org" value="https://www.nuget.org/api/v2/" />   
  </packageSources>
..............

无法解析Microsoft.NETCore.App（＆gt; = 2.1.0）＆＃39; for＆＃39; .NETCoreApp，Version = v2.1＆＃39;

2 个答案: