Nuget 包还原失败 Microsoft.Composition 1.0.27

Question

我在 mac 上使用 visual studio mac 和最新的 .Net Core SDK。在 visual studio 2017 RC windows 上一切正常，但是当我尝试使用 visual studio mac 在 mac 上恢复 nuget 包时，它会抛出错误。

Package Microsoft.Composition 1.0.27 is not compatible with netcoreapp1.1 (.NETCoreApp,Version=v1.1). Package Microsoft.Composition 1.0.27 supports: portable-net45+win8+wp8+wpa81 (.NETPortable,Version=v0.0,Profile=Profile259) One or more packages are incompatible with .NETCoreApp,Version=v1.1.

这是我的 *.csproj 文件

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

    <PropertyGroup>
        <Description>Some</Description>
        <Copyright>Some</Copyright>
        <AssemblyTitle>Some</AssemblyTitle>
        <TargetFramework>netcoreapp1.1</TargetFramework>
        <PreserveCompilationContext>true</PreserveCompilationContext>
        <AssemblyName>SharpCommerce</AssemblyName>
        <OutputType>Exe</OutputType>
        <PackageId>Some</PackageId>
        <UserSecretsId>aspnet-SharpCommerce-ecd1a4f7-1de0-468a-8065-ab902c7aae9b</UserSecretsId>
        <RuntimeFrameworkVersion>1.1.0</RuntimeFrameworkVersion>
        <PackageTargetFallback>$(PackageTargetFallback);dotnet5.6;portable-net45+win8;portable-net45+win8+wp8+wpa81;</PackageTargetFallback>
        <GenerateAssemblyFileVersionAttribute>false</GenerateAssemblyFileVersionAttribute>
        <GenerateAssemblyVersionAttribute>false</GenerateAssemblyVersionAttribute>
        <GenerateAssemblyInformationalVersionAttribute>false</GenerateAssemblyInformationalVersionAttribute>
        <GenerateAssemblyConfigurationAttribute>false</GenerateAssemblyConfigurationAttribute>
        <GenerateAssemblyCompanyAttribute>false</GenerateAssemblyCompanyAttribute>
        <GenerateAssemblyProductAttribute>false</GenerateAssemblyProductAttribute>
        <PreBuildEvent></PreBuildEvent>
    </PropertyGroup>

    <ItemGroup>
        <Content Update="wwwroot\**\*;**\*.cshtml;appsettings.json;web.config">
        <CopyToPublishDirectory>PreserveNewest</CopyToPublishDirectory>
        </Content>
    </ItemGroup>

<ItemGroup>
<PackageReference Include="Microsoft.AspNetCore.Authentication.Cookies" Version="1.1.0" />
<PackageReference Include="Microsoft.AspNetCore.Diagnostics" Version="1.1.0" />
<PackageReference Include="Microsoft.AspNetCore.Diagnostics.EntityFrameworkCore" Version="1.1.0" />
<PackageReference Include="Microsoft.AspNetCore.Identity.EntityFrameworkCore" Version="1.1.0" />
<PackageReference Include="Microsoft.AspNetCore.Mvc" Version="1.1.1" />
<PackageReference Include="Microsoft.AspNetCore.Routing" Version="1.1.0" />
<PackageReference Include="Microsoft.AspNetCore.Server.IISIntegration" Version="1.1.0" />
<PackageReference Include="Microsoft.AspNetCore.Server.Kestrel" Version="1.1.0" />
<PackageReference Include="Microsoft.AspNetCore.StaticFiles" Version="1.1.0" />
<PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="1.1.0" />
<PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer.Design" Version="1.1.0">
  <PrivateAssets>All</PrivateAssets>
</PackageReference>
<PackageReference Include="Microsoft.EntityFrameworkCore.Tools" Version="1.0.0-msbuild3-final">
  <PrivateAssets>All</PrivateAssets>
</PackageReference>
<PackageReference Include="Microsoft.Extensions.Configuration.EnvironmentVariables" Version="1.1.0" />
<PackageReference Include="Microsoft.Extensions.Configuration.Json" Version="1.1.0" />
<PackageReference Include="Microsoft.Extensions.Configuration.UserSecrets" Version="1.1.0" />
<PackageReference Include="Microsoft.Extensions.Logging" Version="1.1.0" />
<PackageReference Include="Microsoft.Extensions.Logging.Console" Version="1.1.0" />
<PackageReference Include="Microsoft.Extensions.Logging.Debug" Version="1.1.0" />
<PackageReference Include="Microsoft.Extensions.Options.ConfigurationExtensions" Version="1.1.0" />
<PackageReference Include="Microsoft.VisualStudio.Web.BrowserLink.Loader" Version="14.1.0" />
<PackageReference Include="Microsoft.VisualStudio.Web.CodeGeneration" Version="1.1.0-preview4-final" />
<PackageReference Include="Microsoft.VisualStudio.Web.CodeGeneration.Design" Version="1.1.0-msbuild3-final">
  <PrivateAssets>All</PrivateAssets>
</PackageReference>
<PackageReference Include="Microsoft.AspNetCore.Mvc.Razor" Version="1.1.1" />
    <PackageReference Include="System.IO.FileSystem" Version="4.3.0" />
    <PackageReference Include="Microsoft.Extensions.FileProviders.Physical" Version="1.1.0" />
    <PackageReference Include="Microsoft.AspNetCore.Http.Abstractions" Version="1.1.0" />
    <PackageReference Include="System.Reflection" Version="4.3.0" />
    <PackageReference Include="System.Runtime.Loader" Version="4.3.0" />
    <PackageReference Include="Microsoft.CodeAnalysis.Common" Version="1.3.2" />
</ItemGroup>

<Target Name="PrepublishScript" BeforeTargets="PrepareForPublish">
    <Exec Command="bower install" />
    <Exec Command="dotnet bundle" />
</Target>


<ItemGroup>
    <ProjectReference Include="..\..\Some.Core.Contracts\Some.Core.Contracts.csproj" />
    <ProjectReference Include="..\..\Some.Core\Some.Core.csproj" />
</ItemGroup>

</Project>

Answer 1

Package Microsoft.Composition 1.0.27 仅支持 .NET Framework 4.5，Windows 8，Windows Phone 8.1，Windows Phone Silverlight 8，可移植Class 库（PCL 配置文件 259）因此它与 Mac

上的 .Net Core 不兼容

关于软件包的 Nuget 信息 https://www.nuget.org/packages/Microsoft.Composition/1.0.27

Answer 2

如果这个包是真实的 PCL（不使用诱饵和开关），您应该能够使用目标回退来引用它。尝试添加

    <PropertyGroup>
        <PackageTargetFallback>dnxcore50;portable-net45+win8+wp8+wpa81</PackageTargetFallback>
    </PropertyGroup>

到您的项目。无法保证它不会在运行时崩溃。

Answer 3

来自支持的回答：

Thanks for reporting this. Visual Studio for Mac in preview 4 is ignoring the PackageTargetFallback information. So the project.assets.json file does not have any imports which prevents NuGet from installing NuGet packages when they should be allowed. This bug should be fixed in the next release.

Nuget 包还原失败 Microsoft.Composition 1.0.27

Nuget package restore failed Microsoft.Composition 1.0.27

.net-core

visual-studio-mac