.Net 4.6网站未正确加载参考装配

Question

我在Visual Studio 2013中有一个Web项目,包括几个库项目.

问题是向Web项目添加引用(即System.Collection,System.Net)作为"引用程序集"添加C:\Program Files (x86)\Reference Assemblies\Microsoft,当在IIS中加载时,它没有正确加载程序集的实现(来自GAC) .示例错误如下.

[BadImageFormatException: Cannot load a reference assembly for execution.]

[BadImageFormatException: Could not load file or assembly 'System.Collections' or one of its dependencies. Reference assemblies should not be loaded for execution.  They can only be loaded in the Reflection-only loader context. (Exception from HRESULT: 0x80131058)]
   System.Reflection.RuntimeAssembly._nLoad(AssemblyName fileName, String codeBase, Evidence assemblySecurity, RuntimeAssembly locationHint, StackCrawlMark& stackMark, IntPtr pPrivHostBinder, Boolean throwOnFileNotFound, Boolean forIntrospection, Boolean suppressSecurityChecks) +0
   System.Reflection.RuntimeAssembly.nLoad(AssemblyName fileName, String codeBase, Evidence assemblySecurity, RuntimeAssembly locationHint, StackCrawlMark& stackMark, IntPtr pPrivHostBinder, Boolean throwOnFileNotFound, Boolean forIntrospection, Boolean suppressSecurityChecks) +34
   System.Reflection.RuntimeAssembly.InternalLoadAssemblyName(AssemblyName assemblyRef, Evidence assemblySecurity, RuntimeAssembly reqAssembly, StackCrawlMark& stackMark, IntPtr pPrivHostBinder, Boolean throwOnFileNotFound, Boolean forIntrospection, Boolean suppressSecurityChecks) +152
   System.Reflection.RuntimeAssembly.InternalLoad(String assemblyString, Evidence assemblySecurity, StackCrawlMark& stackMark, IntPtr pPrivHostBinder, Boolean forIntrospection) +77
   System.Reflection.RuntimeAssembly.InternalLoad(String assemblyString, Evidence assemblySecurity, StackCrawlMark& stackMark, Boolean forIntrospection) +16
   System.Reflection.Assembly.Load(String assemblyString) +28
   System.Web.Configuration.CompilationSection.LoadAssemblyHelper(String assemblyName, Boolean starDirective) +38

[ConfigurationErrorsException: Could not load file or assembly 'System.Collections' or one of its dependencies. Reference assemblies should not be loaded for execution.  They can only be loaded in the Reflection-only loader context. (Exception from HRESULT: 0x80131058)]
   System.Web.Configuration.CompilationSection.LoadAssemblyHelper(String assemblyName, Boolean starDirective) +728
   System.Web.Configuration.CompilationSection.LoadAllAssembliesFromAppDomainBinDirectory() +196
   System.Web.Configuration.CompilationSection.LoadAssembly(AssemblyInfo ai) +45
   System.Web.Compilation.BuildManager.GetReferencedAssemblies(CompilationSection compConfig) +172
   System.Web.Compilation.BuildManager.GetPreStartInitMethodsFromReferencedAssemblies() +91
   System.Web.Compilation.BuildManager.CallPreStartInitMethods(String preStartInitListPath, Boolean& isRefAssemblyLoaded) +111
   System.Web.Compilation.BuildManager.ExecutePreAppStart() +156
   System.Web.Hosting.HostingEnvironment.Initialize(ApplicationManager appManager, IApplicationHost appHost, IConfigMapPathFactory configMapPathFactory, HostingEnvironmentParameters hostingParameters, PolicyLevel policyLevel, Exception appDomainCreationException) +624

[HttpException (0x80004005): Could not load file or assembly 'System.Collections' or one of its dependencies. Reference assemblies should not be loaded for execution.  They can only be loaded in the Reflection-only loader context. (Exception from HRESULT: 0x80131058)]
   System.Web.HttpRuntime.FirstRequestInit(HttpContext context) +659
   System.Web.HttpRuntime.EnsureFirstRequestInit(HttpContext context) +95
   System.Web.HttpRuntime.ProcessRequestNotificationPrivate(IIS7WorkerRequest wr, HttpContext context) +189

从bin文件夹中删除引用dll可以解决问题,但我不确定需要更改哪些才能正确修复此问题.

Answer 1

我从/ Bin 文件夹中 删除了包

System.Collections和 System.Collections.Concurrent

并重建项目

其作品.

Answer 2

解析度：

我的图书馆项目引用了一些核心库（System.*等），其RequiredTargetFramework选项设置为3.5。这仅在csproj文件中显而易见，例如：

<Reference Include="System.Core">
  <RequiredTargetFramework>3.5</RequiredTargetFramework>
</Reference>

因此，.net版本引起了各种各样的问题，Visual Studio试图通过在我的web.config中添加绑定重定向来将其重定向到v4（并包括参考程序集）而对其进行排序，但未成功。

RequiredTargetFramework从csproj文件中删除所有元素已解决了该问题。