Question

我目前正在尝试在OSX上试用Roslyn Workspaces API，并在调用CreateRoslynWorkspace时继续遇到以下异常：

“无法加载类型'System.Reflection.Metadata.ISignatureTypeProvider`1'从程序集'System.Reflection.Metadata，Version = 1.4.1.0，Culture = neutral，PublicKeyToken = b03f5f7f11d50a3a'。”

是否有其他人能够解释可能导致这种情况的原因？

以下是我正在使用的代码：

public static class Class1
{
    public static IEnumerable<Microsoft.CodeAnalysis.Workspace> Create(string projectPath)
    {
        var builder = new ProjectContextBuilder().WithProjectDirectory(projectPath);

        return builder.BuildAllTargets().Select(context => context.CreateRoslynWorkspace());
    }

    public static void GetProject()
    {
        // Entry point
        var path = Directory.GetCurrentDirectory() + "/src/DemoLib/project.json";
        var result = Create(path).ToList();
    }
}

这是我正在使用的project.json

{
  "version": "1.0.0-*",
  "buildOptions": {
    "debugType": "portable"
  },
  "dependencies": {
    "Microsoft.CodeAnalysis.CSharp": "2.0.0-rc2",
    "Microsoft.CodeAnalysis.CSharp.Features": "2.0.0-rc2",
    "Microsoft.CodeAnalysis.CSharp.Workspaces": "2.0.0-rc2",
    "Microsoft.DotNet.ProjectModel": "1.0.0-rc3-1-003177",
    "Microsoft.DotNet.ProjectModel.Loader": "1.0.0-preview2-1-003177",
    "Microsoft.DotNet.ProjectModel.Workspaces": "1.0.0-preview2-1-003177"
  },
    "frameworks": {
      "netcoreapp1.1": {
        "imports": [ "portable-net45+win8" ]
      }
    }
}

这也是整个堆栈跟踪：

“在System.Reflection.RuntimeModule.GetTypes（RuntimeModule模块）\ n在System.Reflection.RuntimeAssembly.get_DefinedTypes（）\ n的System.Composition.Hosting.ContainerConfiguration.b__0（程序集a）\ n在System.Linq上.Enumerable.d__159 2.MoveNext()\n at System.Composition.TypedParts.TypedPartExportDescriptorProvider..ctor(IEnumerable 1种类型，AttributedModelProvider attributeContext）\ n在System.Composition.Hosting.ContainerConfiguration.CreateContainer（）\ n在Microsoft.CodeAnalysis.Host.Mef.MefHostServices.Create（IEnumerable 1 assemblies)\n at Microsoft.CodeAnalysis.Host.Mef.MefHostServices.get_DefaultHost()\n at Microsoft.DotNet.ProjectModel.Workspaces.ProjectJsonWorkspace..ctor(ProjectContext context)\n at Microsoft.DotNet.ProjectModel.Workspaces.WorkspaceProjectContextExtensions.CreateRoslynWorkspace(ProjectContext context)\n at ClassLibrary.Class1.<>c.<Create>b__0_0(ProjectContext context) in /Users/personal/Dev/RoslynWorkspace2/src/Lib/Library.cs:line 16\n at System.Linq.Enumerable.SelectEnumerableIterator 2.MoveNext（）\ n在System.Collections.Generic.List 1..ctor(IEnumerable 1集合）\ n在System.Linq.Enumerable.ToList [TSource]（IEnumerable`1 source）\ n在ClassLibrary.Class1.GetProject （）/Users/personal/Dev/RoslynWorkspace2/src/Lib/Library.cs:line 21 \ n，位于/ Users / personal / Dev / RoslynWorkspace2 / src / WebAPIApplication / Controllers /中的WebAPIApplication.Controllers.ValuesController.Get（） ValuesController.cs：第13行\ n在lambda_method（Closure，Object，Object []）\ n在Microsoft.AspNetCore.Mvc.Internal.ControllerActionInvoker.d__28.MoveNext（）“

Answer 1

将“System.Reflection.Metadata”添加为project.json的依赖项。

无法从程序集System.Reflection.Metadata加载类型'System.Reflection.Metadata.ISignatureTypeProvider

1 个答案: