Roslyn 编译的项目生成空程序集

Question

这是的后续内容，我已经通过几十篇文章的组合获得了解决方案。

这很容易重现：

.csproj:

<Project Sdk="Microsoft.NET.Sdk.Web">
  <PropertyGroup>
    <TargetFramework>net47</TargetFramework>
  </PropertyGroup>

  <ItemGroup>
    <Folder Include="wwwroot\" />
  </ItemGroup>
  <ItemGroup>
    <PackageReference Include="Microsoft.AspNetCore" Version="2.0.0" />
    <PackageReference Include="Microsoft.Build" Version="15.3.409" />
    <PackageReference Include="Microsoft.Build.Tasks.Core" Version="15.3.409" />
    <PackageReference Include="Microsoft.CodeAnalysis.Analyzers" Version="2.3.0-beta1" />
    <PackageReference Include="Microsoft.CodeAnalysis.Common" Version="2.3.1" />
    <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="2.3.1" />
    <PackageReference Include="Microsoft.CodeAnalysis.CSharp.Workspaces" Version="2.3.1" />
    <PackageReference Include="Microsoft.CodeAnalysis.Workspaces.Common" Version="2.3.1" />
    <PackageReference Include="Microsoft.CodeDom.Providers.DotNetCompilerPlatform" Version="1.0.7" />
    <PackageReference Include="Microsoft.Net.Compilers" Version="2.3.1" />
  </ItemGroup>
</Project>

然后：

using System.IO;
using System.Linq;
using Microsoft.CodeAnalysis.MSBuild;

namespace WebApplication1
{
    public class Program
    {
        public static void Main(string[] args)
        {
            var workspace = MSBuildWorkspace.Create();
            var project = workspace.OpenProjectAsyn(@"C:\WebApplication1\WebApplication1.csproj").Result;
            var compilation = project.GetCompilationAsync().Result;

            using (var memoryStream = new MemoryStream())
            {
                var result = compilation.Emit(memoryStream);
                if (result.Success)
                {
                    File.WriteAllBytes(Path.Combine(@"C:\WebApplication1\", $"{compilation.AssemblyName}.dll"), memoryStream.ToArray());
                }
            }
        }
    }
}

加载解决方案后查看 Worskpace，我在 Diagnostics 上收到一条错误消息属性:

Msbuild failed when processing the file 'C:\WebApplication1\WebApplication1.csproj' with message: The SDK 'Microsoft.NET.Sdk.Web' specified could not be found.

Answer 1

根据@DustinCampbell here，这还不是一个受支持的场景。

我通过从 Process.

调用 dotnet build 解决了这个问题

Roslyn 编译的项目生成空程序集

Roslyn-compiled project generates empty assembly

.net

c#

roslyn