ServiceStack和AWS：创建了一个ASP.NET空项目，但无法在目标框架中选择.NET Core

问题描述

我在VS2019中启动了一个ServiceStack ASP.NET Empty项目，因为这是我所需要的最接近的东西。模板是正确的，但是我想在.NET Core中运行它。

I started a ServiceStack ASP.NET Empty project in VS2019, as that was the closest thing I could find to what I wanted. The template is right on, but I want to run it in .NET Core.

但是，目标框架设置为.NET Framework 4.5，但是我希望它能够是.NET Core 2.1+，我也无法选择它：

However, the Target framework was set to .NET Framework 4.5, but I wanted it to be .NET Core 2.1+, and I cannot select it either:

我知道我已经安装了.NET Core，因为我也在VS2019中开发了Blazor应用程序，即.NET Core。

I know that I have .NET Core installed, because I have been developing a Blazor app also in VS2019, which is .NET Core.

I想知道我在这里缺少什么。

I'd like to know what I am missing here.

这是该项目的csproj文件包含AppHost.cs

Here is the csproj file for the project containing the AppHost.cs

<?xml version="1.0" encoding="utf-8"?>
<Project ToolsVersion="12.0" 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>
    <ProductVersion>
    </ProductVersion>
    <SchemaVersion>2.0</SchemaVersion>
    <ProjectGuid>{4389B305-B381-4B50-B1A8-BBB5259A0524}</ProjectGuid>
    <ProjectTypeGuids>{349c5851-65df-11da-9384-00065b846f21};{fae04ec0-301f-11d3-bf4b-00c04f79efbc}</ProjectTypeGuids>
    <OutputType>Library</OutputType>
    <AppDesignerFolder>Properties</AppDesignerFolder>
    <RootNamespace>DrivingLicenseApi</RootNamespace>
    <AssemblyName>DrivingLicenseApi</AssemblyName>
    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
    <UseIISExpress>true</UseIISExpress>
    <IISExpressSSLPort />
    <IISExpressAnonymousAuthentication />
    <IISExpressWindowsAuthentication />
    <IISExpressUseClassicPipelineMode />
    <SolutionDir Condition="$(SolutionDir) == '' Or $(SolutionDir) == '*Undefined*'">..\..\</SolutionDir>
    <RestorePackages>true</RestorePackages>
    <Use64BitIISExpress />
    <UseGlobalApplicationHostFile />
  </PropertyGroup>
  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
    <DebugSymbols>true</DebugSymbols>
    <DebugType>full</DebugType>
    <Optimize>false</Optimize>
    <OutputPath>bin\</OutputPath>
    <DefineConstants>DEBUG;TRACE</DefineConstants>
    <ErrorReport>prompt</ErrorReport>
    <WarningLevel>4</WarningLevel>
  </PropertyGroup>
  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
    <DebugType>pdbonly</DebugType>
    <Optimize>true</Optimize>
    <OutputPath>bin\</OutputPath>
    <DefineConstants>TRACE</DefineConstants>
    <ErrorReport>prompt</ErrorReport>
    <WarningLevel>4</WarningLevel>
  </PropertyGroup>
  <ItemGroup>
    <Reference Include="Microsoft.CSharp" />
    <Reference Include="ServiceStack, Version=5.0.0.0, Culture=neutral, PublicKeyToken=02c12cbda47e6587, processorArchitecture=MSIL">
      <HintPath>..\..\packages\ServiceStack.5.6.0\lib\net45\ServiceStack.dll</HintPath>
    </Reference>
    <Reference Include="ServiceStack.Client, Version=5.0.0.0, Culture=neutral, PublicKeyToken=02c12cbda47e6587, processorArchitecture=MSIL">
      <HintPath>..\..\packages\ServiceStack.Client.5.6.0\lib\net45\ServiceStack.Client.dll</HintPath>
    </Reference>
    <Reference Include="ServiceStack.Common, Version=5.0.0.0, Culture=neutral, PublicKeyToken=02c12cbda47e6587, processorArchitecture=MSIL">
      <HintPath>..\..\packages\ServiceStack.Common.5.6.0\lib\net45\ServiceStack.Common.dll</HintPath>
    </Reference>
    <Reference Include="ServiceStack.Interfaces, Version=5.0.0.0, Culture=neutral, PublicKeyToken=02c12cbda47e6587, processorArchitecture=MSIL">
      <HintPath>..\..\packages\ServiceStack.Interfaces.5.6.0\lib\net45\ServiceStack.Interfaces.dll</HintPath>
    </Reference>
    <Reference Include="ServiceStack.OrmLite, Version=5.0.0.0, Culture=neutral, PublicKeyToken=02c12cbda47e6587, processorArchitecture=MSIL">
      <HintPath>..\..\packages\ServiceStack.OrmLite.5.6.0\lib\net45\ServiceStack.OrmLite.dll</HintPath>
    </Reference>
    <Reference Include="ServiceStack.Redis, Version=5.0.0.0, Culture=neutral, PublicKeyToken=02c12cbda47e6587, processorArchitecture=MSIL">
      <HintPath>..\..\packages\ServiceStack.Redis.5.6.0\lib\net45\ServiceStack.Redis.dll</HintPath>
    </Reference>
    <Reference Include="ServiceStack.Server, Version=5.0.0.0, Culture=neutral, PublicKeyToken=02c12cbda47e6587, processorArchitecture=MSIL">
      <HintPath>..\..\packages\ServiceStack.Server.5.6.0\lib\net45\ServiceStack.Server.dll</HintPath>
    </Reference>
    <Reference Include="ServiceStack.Text, Version=5.0.0.0, Culture=neutral, PublicKeyToken=02c12cbda47e6587, processorArchitecture=MSIL">
      <HintPath>..\..\packages\ServiceStack.Text.5.6.0\lib\net45\ServiceStack.Text.dll</HintPath>
    </Reference>
    <Reference Include="System.Buffers, Version=4.0.3.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51, processorArchitecture=MSIL">
      <HintPath>..\..\packages\System.Buffers.4.5.0\lib\netstandard1.1\System.Buffers.dll</HintPath>
    </Reference>
    <Reference Include="System.ComponentModel.DataAnnotations" />
    <Reference Include="System" />
    <Reference Include="System.Memory, Version=4.0.1.1, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51, processorArchitecture=MSIL">
      <HintPath>..\..\packages\System.Memory.4.5.3\lib\netstandard1.1\System.Memory.dll</HintPath>
    </Reference>
    <Reference Include="System.Net" />
    <Reference Include="System.Data" />
    <Reference Include="System.Core" />
    <Reference Include="System.Runtime.CompilerServices.Unsafe, Version=4.0.4.1, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
      <HintPath>..\..\packages\System.Runtime.CompilerServices.Unsafe.4.5.2\lib\netstandard1.0\System.Runtime.CompilerServices.Unsafe.dll</HintPath>
    </Reference>
    <Reference Include="System.ServiceModel" />
    <Reference Include="System.Web" />
    <Reference Include="System.Xml" />
    <Reference Include="System.Configuration" />
  </ItemGroup>
  <ItemGroup>
    <ProjectReference Include="..\DrivingLicenseApi.ServiceInterface\DrivingLicenseApi.ServiceInterface.csproj">
      <Project>{801a0f89-d5f6-49a6-bcea-6624388c98a4}</Project>
      <Name>DrivingLicenseApi.ServiceInterface</Name>
    </ProjectReference>
    <ProjectReference Include="..\DrivingLicenseApi.ServiceModel\DrivingLicenseApi.ServiceModel.csproj">
      <Project>{53E82AC1-DD1D-4C66-B55F-F9F4ACFB2F40}</Project>
      <Name>DrivingLicenseApi.ServiceModel</Name>
    </ProjectReference>
  </ItemGroup>
  <ItemGroup>
    <Content Include="packages.config" />
    <None Include="Web.Debug.config">
      <DependentUpon>Web.config</DependentUpon>
    </None>
    <None Include="Web.Release.config">
      <DependentUpon>Web.config</DependentUpon>
    </None>
  </ItemGroup>
  <ItemGroup>
    <Content Include="Global.asax" />
    <Content Include="Web.config" />
  </ItemGroup>
  <ItemGroup>
    <Compile Include="AppHost.cs" />
    <Compile Include="Global.asax.cs">
      <DependentUpon>Global.asax</DependentUpon>
    </Compile>
    <Compile Include="Properties\AssemblyInfo.cs" />
  </ItemGroup>
  <PropertyGroup>
    <VisualStudioVersion Condition="'$(VisualStudioVersion)' == ''">10.0</VisualStudioVersion>
    <VSToolsPath Condition="'$(VSToolsPath)' == ''">$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v$(VisualStudioVersion)</VSToolsPath>
  </PropertyGroup>
  <Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
  <Import Project="$(VSToolsPath)\WebApplications\Microsoft.WebApplication.targets" Condition="'$(VSToolsPath)' != ''" />
  <Import Project="$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v10.0\WebApplications\Microsoft.WebApplication.targets" Condition="false" />
  <Import Project="$(SolutionDir)\.nuget\NuGet.targets" Condition="Exists('$(SolutionDir)\.nuget\NuGet.targets')" />
  <ProjectExtensions>
    <VisualStudio>
      <FlavorProperties GUID="{349c5851-65df-11da-9384-00065b846f21}">
        <WebProjectProperties>
          <UseIIS>True</UseIIS>
          <AutoAssignPort>True</AutoAssignPort>
          <DevelopmentServerPort>51893</DevelopmentServerPort>
          <DevelopmentServerVPath>/</DevelopmentServerVPath>
          <IISUrl>http://localhost:51893/</IISUrl>
          <NTLMAuthentication>False</NTLMAuthentication>
          <UseCustomServer>False</UseCustomServer>
          <CustomServerUrl>
          </CustomServerUrl>
          <SaveServerSettingsInUserFile>False</SaveServerSettingsInUserFile>
        </WebProjectProperties>
      </FlavorProperties>
    </VisualStudio>
  </ProjectExtensions>
  <!-- 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>

推荐答案

仅允许您创建.NET Framework项目。

ServiceStackVS VS.NET Extension only lets you create .NET Framework projects.

创建ASP。您需要使用的NET Core项目，例如创建，运行：

To create ASP.NET Core projects you need to use web new, e.g. to create an Empty ASP.NET Core project run:

$ web new web ProjectName

这篇关于ServiceStack和AWS：创建了一个ASP.NET空项目，但无法在目标框架中选择.NET Core的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！