ELMAH 1.2 无法加载文件或程序集“System.Data.SQLite”或其依赖项之一

Question

我正在尝试将 64 位版本的 ELMAH 1.2 包含在 IIS Express 中本地托管的 ASP.NET 应用程序中。我引用了 Elmah.dll 的发布版本，以便将其复制到 bin 文件夹中。出于本地工作站配置的目的，我只想将异常记录到 XML 文件中。因此，我将 ELMAH 配置如下：

<configuration>
    <sectionGroup name="elmah">
       <section name="errorLog" requirePermission="false" type="Elmah.ErrorLogSectionHandler, Elmah" />
    </sectionGroup>

    <elmah>
       <errorLog type="Elmah.XmlFileErrorLog, Elmah" logPath="C:\Logs\Elmah" />
    </elmah>

    <system.webServer>
       <handlers>
          <add name="Elmah" path="elmah.axd" verb="POST,GET,HEAD" type="Elmah.ErrorLogPageFactory, Elmah" preCondition="integratedMode" />
       </handlers>
       <modules>
          <add name="ErrorLog" type="Elmah.ErrorLogModule, Elmah" preCondition="managedHandler" />
       </modules>
    </system.webServer>
</configuration>

当我从 Visual Studio 启动调试会话时，网站会加载并出现以下运行时错误：

无法加载文件或程序集“System.Data.SQLite”或其依赖项之一。试图加载格式不正确的程序。

堆栈跟踪如下所示：

[BadImageFormatException: Could not load file or assembly 'System.Data.SQLite' or one of its dependencies. An attempt was made to load a program with an incorrect format.]
System.Reflection.RuntimeAssembly._nLoad(AssemblyName fileName, String codeBase, Evidence assemblySecurity, RuntimeAssembly locationHint, StackCrawlMark& stackMark, Boolean throwOnFileNotFound, Boolean forIntrospection, Boolean suppressSecurityChecks) +0
System.Reflection.RuntimeAssembly.nLoad(AssemblyName fileName, String codeBase, Evidence assemblySecurity, RuntimeAssembly locationHint, StackCrawlMark& stackMark, Boolean throwOnFileNotFound, Boolean forIntrospection, Boolean suppressSecurityChecks) +60
System.Reflection.RuntimeAssembly.InternalLoadAssemblyName(AssemblyName assemblyRef, Evidence assemblySecurity, StackCrawlMark& stackMark, Boolean forIntrospection, Boolean suppressSecurityChecks) +555
System.Reflection.RuntimeAssembly.InternalLoad(String assemblyString, Evidence assemblySecurity, StackCrawlMark& stackMark, Boolean forIntrospection) +308
System.Reflection.Assembly.Load(String assemblyString) +51
System.Web.Configuration.CompilationSection.LoadAssemblyHelper(String assemblyName, Boolean starDirective) +115

[ConfigurationErrorsException: Could not load file or assembly 'System.Data.SQLite' or one of its dependencies. An attempt was made to load a program with an incorrect format.]
System.Web.Configuration.CompilationSection.LoadAssemblyHelper(String assemblyName, Boolean starDirective) +1031
System.Web.Configuration.CompilationSection.LoadAllAssembliesFromAppDomainBinDirectory() +346
System.Web.Configuration.CompilationSection.LoadAssembly(AssemblyInfo ai) +85
System.Web.Configuration.AssemblyInfo.get_AssemblyInternal() +54
System.Web.Compilation.BuildManager.GetReferencedAssemblies(CompilationSection compConfig) +274
System.Web.Compilation.BuildManager.GetPreStartInitMethodsFromReferencedAssemblies() +64
System.Web.Compilation.BuildManager.CallPreStartInitMethods() +235
System.Web.Hosting.HostingEnvironment.Initialize(ApplicationManager appManager, IApplicationHost appHost, IConfigMapPathFactory configMapPathFactory, HostingEnvironmentParameters hostingParameters, PolicyLevel policyLevel, Exception appDomainCreationException) +1107

[HttpException (0x80004005): Could not load file or assembly 'System.Data.SQLite' or one of its dependencies. An attempt was made to load a program with an incorrect format.]
System.Web.HttpRuntime.FirstRequestInit(HttpContext context) +763
System.Web.HttpRuntime.EnsureFirstRequestInit(HttpContext context) +156
System.Web.HttpRuntime.ProcessRequestNotificationPrivate(IIS7WorkerRequest wr, HttpContext context) +243

问题是，为什么 ELMAH 会导致运行时尝试加载 System.Data.SQLite，因为我不想使用 SQLite 记录异常？另外，我该如何解决这个问题（我已经在 ELMAH 谷歌组和 StackOverflow 上到处查看了）？

Answer 1

这不是 Elmah 或 SQLite 的问题，问题是 IISExpress 在您的桌面上以 32 位运行。你需要为你的桌面运行 32 位，64 位应该适合生产。

看看这个：http://learn.iis.net/page.aspx/1010/iis-75-express-readme/，尤其是：

支持 32 位和 64 位系统，但仅存在 IIS 7.5 Express 的 32 位版本。