ASP.NET应用程序无法加载非托管DLL的

时间：2019-03-25 14:44:01

标签： asp.net vmware

我正在构建一个ASP.NET应用程序，该应用程序引用了一些VMware非托管DLL。依赖关系如下所示：

My Application
    |__VMware.VimAutomation.HorizonView.Interop.DLL (unmanaged DLL)
        |__VMware.VimAutomation.HorizonView.Impl.DLL (unmanaged DLL)

当我在控制台应用程序中运行测试代码时，一切正常。

但是，当我运行该应用的ASP.NET版本时，会收到以下错误消息：

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. 

Exception Details: System.IO.FileNotFoundException: Could not load file or assembly 'file:///C:\Windows\Microsoft.NET\Framework64\v4.0.30319\Temporary ASP.NET Files\test\87752894\3f64ba7e\assembly\dl3\48cfd1a4\005d27b4_7c3ad201\VMware.VimAutomation.Sdk.Impl.dll' or one of its dependencies. The system cannot find the file specified.

Source Error: 

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Assembly Load Trace: The following information can be helpful to determine why the assembly 'file:///C:\Windows\Microsoft.NET\Framework64\v4.0.30319\Temporary ASP.NET Files\test\87752894\3f64ba7e\assembly\dl3\48cfd1a4\005d27b4_7c3ad201\VMware.VimAutomation.Sdk.Impl.dll' could not be loaded.


WRN: Assembly binding logging is turned OFF.
To enable assembly bind failure logging, set the registry value [HKLM\Software\Microsoft\Fusion!EnableLog] (DWORD) to 1.
Note: There is some performance penalty associated with assembly bind failure logging.
To turn this feature off, remove the registry value [HKLM\Software\Microsoft\Fusion!EnableLog].

Stack Trace: 


[FileNotFoundException: Could not load file or assembly 'file:///C:\Windows\Microsoft.NET\Framework64\v4.0.30319\Temporary ASP.NET Files\test\87752894\3f64ba7e\assembly\dl3\48cfd1a4\005d27b4_7c3ad201\VMware.VimAutomation.Sdk.Impl.dll' or one of its dependencies. The system cannot find the file specified.]
   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.InternalLoadAssemblyName(AssemblyName assemblyRef, Evidence assemblySecurity, RuntimeAssembly reqAssembly, StackCrawlMark& stackMark, IntPtr pPrivHostBinder, Boolean throwOnFileNotFound, Boolean forIntrospection, Boolean suppressSecurityChecks) +225
   System.Reflection.RuntimeAssembly.InternalLoadFrom(String assemblyFile, Evidence securityEvidence, Byte[] hashValue, AssemblyHashAlgorithm hashAlgorithm, Boolean forIntrospection, Boolean suppressSecurityChecks, StackCrawlMark& stackMark) +172
   System.Reflection.Assembly.LoadFrom(String assemblyFile, Evidence securityEvidence) +53
   System.Activator.CreateInstanceFromInternal(String assemblyFile, String typeName, Boolean ignoreCase, BindingFlags bindingAttr, Binder binder, Object[] args, CultureInfo culture, Object[] activationAttributes, Evidence securityInfo) +29
   System.Activator.CreateInstanceFrom(String assemblyFile, String typeName) +52
   VMware.VimAutomation.Sdk.Interop.V1.CoreServiceFactory..cctor() +148

[TypeInitializationException: The type initializer for 'VMware.VimAutomation.Sdk.Interop.V1.CoreServiceFactory' threw an exception.]
   VMware.VimAutomation.HorizonView.Impl.V1.ViewServerClientManagerImpl.RegisterClientServer(ViewServerClient client, ViewServerInterop server) +69
   VMware.VimAutomation.HorizonView.Impl.V1.ViewServerClientManagerImpl.UpdateClient(ViewServerClient client, String domain, HviClientImpl hviClientImpl) +228
   VMware.VimAutomation.HorizonView.Impl.V1.ViewServerClientManagerImpl.ConnectViewServer(String server, String username, SecureString password, String domain) +257
   WebApplication17.Controllers.HomeController.Index() in C:\Users\jdavis\source\repos\WebApplication17\WebApplication17\Controllers\HomeController.cs:34
   lambda_method(Closure , ControllerBase , Object[] ) +87
   System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod(ControllerContext controllerContext, ActionDescriptor actionDescriptor, IDictionary`2 parameters) +35
   System.Web.Mvc.Async.<>c.<BeginInvokeSynchronousActionMethod>b__9_0(IAsyncResult asyncResult, ActionInvocation innerInvokeState) +39
   System.Web.Mvc.Async.WrappedAsyncResult`2.CallEndDelegate(IAsyncResult asyncResult) +77
   System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeActionMethod(IAsyncResult asyncResult) +42
   System.Web.Mvc.Async.AsyncInvocationWithFilters.<InvokeActionMethodFilterAsynchronouslyRecursive>b__11_0() +72
   System.Web.Mvc.Async.<>c__DisplayClass11_1.<InvokeActionMethodFilterAsynchronouslyRecursive>b__2() +387
   System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeActionMethodWithFilters(IAsyncResult asyncResult) +42
   System.Web.Mvc.Async.<>c__DisplayClass3_6.<BeginInvokeAction>b__3() +50
   System.Web.Mvc.Async.<>c__DisplayClass3_1.<BeginInvokeAction>b__5(IAsyncResult asyncResult) +188
   System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeAction(IAsyncResult asyncResult) +38
   System.Web.Mvc.<>c.<BeginExecuteCore>b__152_1(IAsyncResult asyncResult, ExecuteCoreState innerState) +26
   System.Web.Mvc.Async.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult) +73
   System.Web.Mvc.Controller.EndExecuteCore(IAsyncResult asyncResult) +52
   System.Web.Mvc.Async.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult) +39
   System.Web.Mvc.Controller.EndExecute(IAsyncResult asyncResult) +38
   System.Web.Mvc.<>c.<BeginProcessRequest>b__20_1(IAsyncResult asyncResult, ProcessRequestState innerState) +40
   System.Web.Mvc.Async.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult) +73
   System.Web.Mvc.MvcHandler.EndProcessRequest(IAsyncResult asyncResult) +38
   System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +602
   System.Web.HttpApplication.ExecuteStepImpl(IExecutionStep step) +195
   System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +128

Web.config文件：

<?xml version="1.0"?>

<configuration>
  <configSections>
    <sectionGroup name="system.web.webPages.razor" type="System.Web.WebPages.Razor.Configuration.RazorWebSectionGroup, System.Web.WebPages.Razor, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35">
      <section name="host" type="System.Web.WebPages.Razor.Configuration.HostSection, System.Web.WebPages.Razor, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
      <section name="pages" type="System.Web.WebPages.Razor.Configuration.RazorPagesSection, System.Web.WebPages.Razor, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" requirePermission="false" />
    </sectionGroup>
  </configSections>

  <system.web.webPages.razor>
    <host factoryType="System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc, Version=5.2.4.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
    <pages pageBaseType="System.Web.Mvc.WebViewPage">
      <namespaces>
        <add namespace="System.Web.Mvc" />
        <add namespace="System.Web.Mvc.Ajax" />
        <add namespace="System.Web.Mvc.Html" />
        <add namespace="System.Web.Routing" />
        <add namespace="WebApplication17" />
      </namespaces>
    </pages>
  </system.web.webPages.razor>

  <appSettings>
    <!--<add key="webpages:Enabled" value="false" />-->
  </appSettings>

  <system.webServer>
    <handlers>
      <remove name="BlockViewHandler"/>
      <add name="BlockViewHandler" path="*" verb="*" preCondition="integratedMode" type="System.Web.HttpNotFoundHandler" />
    </handlers>
  </system.webServer>

  <system.web>
    <compilation>
      <assemblies>
        <add assembly="System.Web.Mvc, Version=5.2.4.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35" />
      </assemblies>
    </compilation>
  </system.web>
</configuration>

很明显，没有将VMware.VimAutomation.Sdk.Impl.dll复制到该临时目录中。即使我手动复制它并尝试重新运行代码，错误消息仍然存在。

我已经审查并尝试了以下相关问题的所有答案：

Could not load file or assembly Temporary ASP.NET Files

Unmanaged DLLs fail to load on ASP.NET server

如果任何人都可以分享一些疑难解答的想法，将不胜感激。

1 个答案:

答案 0 :(得分：0)

因此，经过一天半的努力，我找到了一个非常简单的解决方案。

将以下代码添加到我的Web.Config中，解决了该问题：

  <system.web>
      <hostingEnvironment shadowCopyBinAssemblies="false" />
  </system.web>

这停止了将所有文件复制到ASP.NET临时文件目录，从而避免了丢失的引用DLL问题。

尽管我不能确定文件现在是从哪个目录加载的。可能是我的项目\ bin？

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