Roslyn编译不解析mscorlib引用

Question

我正在开发一个项目,我使用Roslyn从一个解决方案编译项目.

foreach (var projectId in solution.GetProjectDependencyGraph().GetTopologicallySortedProjects())
{
    var project = solution.GetProject(projectId);
    var compilation = project.GetCompilationAsync().Result;
    var errors = compilation.GetDiagnostics().Where(d => d.Severity == DiagnosticSeverity.Error);
    // ...

编译包含诸如的错误

错误CS0012:类型"任务"在未引用的程序集中定义.您必须添加对程序集'System.Threading.Tasks,Version = 4.0.0.0,Culture = neutral,PublicKeyToken = b03f5f7f11d50a3a'的引用.

为什么Roslyn不接受对mscorlib的现有引用？

• msdn for System.Threading.Task指出这种类型确实位于mscorlib.dll中
• PublicKeyToken b03f5f7f11d50a3a与mscorlib相匹配

有CompilationOptions什么我应该考虑的吗？根据这个线程,我试过,assemblyIdentityComparer: DesktopAssemblyIdentityComparer.Default但它没有帮助.我试图与之合作,metadataReferenceResolver但找不到有关它的更多信息.

在Roslyn中的解决方案之后没有引用System.Runtime我实现了代码,确保项目引用了mscorlib.dll,System.Core.dll,System.dll和System.Runtime.dll,这样我的项目和编译就有了参考文献:

附注:参考#7已添加此方式.该项目已经引用了#1,2和3,删除它们并替换为C:\ Windows\Microsoft.NET\Framework中的那些并没有解决问题.

project.MetadataReferences.ToList()
Count = 8
    [0]: Assembly Path='C:\Program Files (x86)\Microsoft Visual Studio 14.0\Common7\IDE\PublicAssemblies\Microsoft.VisualStudio.QualityTools.UnitTestFramework.dll'
    [1]: Assembly Path='C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.5\mscorlib.dll'
    [2]: Assembly Path='C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.5\System.Core.dll'
    [3]: Assembly Path='C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.5\System.dll'
    [4]: Assembly Path='C:\Users\Amadeus\Documents\GitHub\InterProcessQueue\src\MemoryMappedQueue\packages\xunit.runner.visualstudio.2.0.0-rc1-build1030\build\_common\xunit.abstractions.dll'
    [5]: Assembly Path='C:\Users\Amadeus\Documents\GitHub\InterProcessQueue\src\MemoryMappedQueue\packages\xunit.assert.2.0.0-rc1-build2826\lib\portable-net45+aspnetcore50+win+wpa81+wp80+monotouch+monoandroid+Xamarin.iOS\xunit.assert.dll'
    [6]: Assembly Path='C:\Users\Amadeus\Documents\GitHub\InterProcessQueue\src\MemoryMappedQueue\packages\xunit.extensibility.core.2.0.0-rc1-build2826\lib\portable-net45+aspnetcore50+win+wpa81+wp80+monotouch+monoandroid+Xamarin.iOS\xunit.core.dll'
    [7]: Assembly Path='C:\Windows\Microsoft.NET\Framework\v4.0.30319\System.Runtime.dll'

compilation.ExternalReferences.ToList()
Count = 9
    [0]: Assembly Path='C:\Program Files (x86)\Microsoft Visual Studio 14.0\Common7\IDE\PublicAssemblies\Microsoft.VisualStudio.QualityTools.UnitTestFramework.dll'
    [1]: Assembly Path='C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.5\mscorlib.dll'
    [2]: Assembly Path='C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.5\System.Core.dll'
    [3]: Assembly Path='C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.5\System.dll'
    [4]: Assembly Path='C:\Users\Amadeus\Documents\GitHub\InterProcessQueue\src\MemoryMappedQueue\packages\xunit.runner.visualstudio.2.0.0-rc1-build1030\build\_common\xunit.abstractions.dll'
    [5]: Assembly Path='C:\Users\Amadeus\Documents\GitHub\InterProcessQueue\src\MemoryMappedQueue\packages\xunit.assert.2.0.0-rc1-build2826\lib\portable-net45+aspnetcore50+win+wpa81+wp80+monotouch+monoandroid+Xamarin.iOS\xunit.assert.dll'
    [6]: Assembly Path='C:\Users\Amadeus\Documents\GitHub\InterProcessQueue\src\MemoryMappedQueue\packages\xunit.extensibility.core.2.0.0-rc1-build2826\lib\portable-net45+aspnetcore50+win+wpa81+wp80+monotouch+monoandroid+Xamarin.iOS\xunit.core.dll'
    [7]: Assembly Path='C:\Windows\Microsoft.NET\Framework\v4.0.30319\System.Runtime.dll'
    [8]: Compilation (C#): MemoryMappedQueue

• 如何让Roslyn编译这个项目？
• 有什么CompilationOptions我应该用的吗？
• 是罗斯林的问题#970与此有关？

Answer 1

产生错误的项目是否是引用可移植项目的不可移植项​​目？如果是这样，请观察这个答案- 您必须添加外观引用。