尝试使用库时出现 COMException

Question

我有一个使用库的 ASP.net WebService，它依赖于一些第三方 .dll。

如果我将对库的引用添加到我的 Web 服务中，我会收到 COMException 并且无法加载该网站。 我认为这可能与 aspnet 用户凭据有关，所以我尝试在 machine.config 中模拟和使用 processModel，但似乎没有任何效果。

.dll 用于与硬件通信，因此我什至不在服务器上使用它们，只是库的其他部分，有什么方法可以解决这个问题吗？

我运行的是 Windows XP Pro SP3、Visual 2008 SP1 和 .net 3.5。

我认为修复它的唯一方法是将库分为基于硬件和非基于硬件的库。

干杯，萨基

    The specified procedure could not be found. (Exception from HRESULT: 0x8007007F) 
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.Runtime.InteropServices.COMException: The specified procedure could not be found. (Exception from HRESULT: 0x8007007F)

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.  

Stack Trace: 


[COMException (0x8007007f): The specified procedure could not be found. (Exception from HRESULT: 0x8007007F)]

[FileLoadException: A procedure imported by 'OBIDISC4NETnative, Version=0.0.0.0, Culture=neutral, PublicKeyToken=900ed37a7058e4f2' could not be loaded.]
   System.Reflection.Assembly._nLoad(AssemblyName fileName, String codeBase, Evidence assemblySecurity, Assembly locationHint, StackCrawlMark& stackMark, Boolean throwOnFileNotFound, Boolean forIntrospection) +0
   System.Reflection.Assembly.nLoad(AssemblyName fileName, String codeBase, Evidence assemblySecurity, Assembly locationHint, StackCrawlMark& stackMark, Boolean throwOnFileNotFound, Boolean forIntrospection) +43
   System.Reflection.Assembly.InternalLoad(AssemblyName assemblyRef, Evidence assemblySecurity, StackCrawlMark& stackMark, Boolean forIntrospection) +127
   System.Reflection.Assembly.InternalLoad(String assemblyString, Evidence assemblySecurity, StackCrawlMark& stackMark, Boolean forIntrospection) +142
   System.Reflection.Assembly.Load(String assemblyString) +28
   System.Web.Configuration.CompilationSection.LoadAssemblyHelper(String assemblyName, Boolean starDirective) +46

[ConfigurationErrorsException: A procedure imported by 'OBIDISC4NETnative, Version=0.0.0.0, Culture=neutral, PublicKeyToken=900ed37a7058e4f2' could not be loaded.]
   System.Web.Configuration.CompilationSection.LoadAssemblyHelper(String assemblyName, Boolean starDirective) +613
   System.Web.Configuration.CompilationSection.LoadAllAssembliesFromAppDomainBinDirectory() +203
   System.Web.Configuration.CompilationSection.LoadAssembly(AssemblyInfo ai) +105
   System.Web.Compilation.BuildManager.GetReferencedAssemblies(CompilationSection compConfig) +178
   System.Web.Compilation.WebDirectoryBatchCompiler..ctor(VirtualDirectory vdir) +163
   System.Web.Compilation.BuildManager.BatchCompileWebDirectoryInternal(VirtualDirectory vdir, Boolean ignoreErrors) +53
   System.Web.Compilation.BuildManager.BatchCompileWebDirectory(VirtualDirectory vdir, VirtualPath virtualDir, Boolean ignoreErrors) +175
   System.Web.Compilation.BuildManager.CompileWebFile(VirtualPath virtualPath) +83
   System.Web.Compilation.BuildManager.GetVPathBuildResultInternal(VirtualPath virtualPath, Boolean noBuild, Boolean allowCrossApp, Boolean allowBuildInPrecompile) +261
   System.Web.Compilation.BuildManager.GetVPathBuildResultWithNoAssert(HttpContext context, VirtualPath virtualPath, Boolean noBuild, Boolean allowCrossApp, Boolean allowBuildInPrecompile) +101
   System.Web.Compilation.BuildManager.GetVPathBuildResult(HttpContext context, VirtualPath virtualPath, Boolean noBuild, Boolean allowCrossApp, Boolean allowBuildInPrecompile) +83
   System.Web.Compilation.BuildManager.GetVPathBuildResult(HttpContext context, VirtualPath virtualPath) +10
   System.Web.UI.WebServiceParser.GetCompiledType(String inputFile, HttpContext context) +43
   System.Web.Services.Protocols.WebServiceHandlerFactory.GetHandler(HttpContext context, String verb, String url, String filePath) +180
   System.Web.Script.Services.ScriptHandlerFactory.GetHandler(HttpContext context, String requestType, String url, String pathTranslated) +102
   System.Web.HttpApplication.MapHttpHandler(HttpContext context, String requestType, VirtualPath path, String pathTranslated, Boolean useAppConfig) +193
   System.Web.MapHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +93
   System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +155




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Version Information: Microsoft .NET Framework Version:2.0.50727.3082; ASP.NET Version:2.0.50727.3082 

Answer 1

感谢 Kim Grasman 让我走上了正确的道路。

该过程丢失的原因是因为 asp.net 正在从 %windir%\system32 而不是当前目录加载 .dll。

在那里查看，有一些非常旧版本的 .dll（不确定他们是谁/如何到达那里的）。 删除显示 FileIOException 的这些内容，因此用最新的 .dll 替换这些内容似乎已经修复了该问题。