asp.net - 目标平台和 'Could not load file or assembly'错误

Question

我有一个面向 64 位平台的 Win Forms 应用程序(这是必需的，因为它使用 64 位 Oracle.DataAccess 库)。

我已向此解决方案添加了 ASP.net 表单应用程序，并且我想将对 WinForms 应用程序的引用添加到 ASP.net 应用程序。

我的 WebApp 也以 64 位为目标并正确构建，但是当我运行它时，我得到:

'Could not load file or assembly 'Oracle.DataAccess' or one of its dependencies'.

我还确保 Oracle.DataAccess 是新的 64 位版本。有什么想法吗？
Winforms 应用程序(引用了 Oracle.DataAccess)正在 100% 运行，因此这告诉我问题可能不在于 dll 版本。

有关以下错误的更多信息:

=== Pre-bind state information ===
LOG: User = Domain\myUser
LOG: DisplayName = Oracle.DataAccess
 (Partial)
WRN: Partial binding information was supplied for an assembly:
WRN: Assembly Name: Oracle.DataAccess | Domain ID: 3
WRN: A partial bind occurs when only part of the assembly display name is provided.
WRN: This might result in the binder loading an incorrect assembly.
WRN: It is recommended to provide a fully specified textual identity for the assembly,
WRN: that consists of the simple name, version, culture, and public key token.
WRN: See whitepaper http://go.microsoft.com/fwlink/?LinkId=109270 for more information and common solutions to this issue.
LOG: Appbase = file:///D:/xx/UDWIntegration/UDWWeb/
LOG: Initial PrivatePath = D:\xx\UDWWeb\bin
Calling assembly : (Unknown).
===
LOG: This bind starts in default load context.
LOG: Using application configuration file: D:\xx\UDWWeb\web.config
LOG: Using host configuration file: C:\Users\xx\Documents\IISExpress\config\aspnet.config
LOG: Using machine configuration file from C:\Windows\Microsoft.NET\Framework\v4.0.30319\config\machine.config.
LOG: Policy not being applied to reference at this time (private, custom, partial, or location-based assembly bind).
LOG: Attempting download of new URL file:///C:/Users/xx/AppData/Local/Temp/Temporary ASP.NET Files/root/ef51aef3/7f23a77a/Oracle.DataAccess.DLL.
LOG: Attempting download of new URL file:///C:/Users/xx/AppData/Local/Temp/Temporary ASP.NET Files/root/ef51aef3/7f23a77a/Oracle.DataAccess/Oracle.DataAccess.DLL.
LOG: Attempting download of new URL file:///D:/xx/UDWWeb/bin/Oracle.DataAccess.DLL.
ERR: Failed to complete setup of assembly (hr = 0x8007000b). Probing terminated.

Stack Trace: 


[BadImageFormatException: Could not load file or assembly 'Oracle.DataAccess' 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, 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 'Oracle.DataAccess' 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) +752
   System.Web.Configuration.CompilationSection.LoadAllAssembliesFromAppDomainBinDirectory() +218
   System.Web.Configuration.CompilationSection.LoadAssembly(AssemblyInfo ai) +130
   System.Web.Compilation.BuildManager.GetReferencedAssemblies(CompilationSection compConfig) +170
   System.Web.Compilation.WebDirectoryBatchCompiler..ctor(VirtualDirectory vdir) +124
   System.Web.Compilation.BuildManager.BatchCompileWebDirectoryInternal(VirtualDirectory vdir, Boolean ignoreErrors) +44
   System.Web.Compilation.BuildManager.BatchCompileWebDirectory(VirtualDirectory vdir, VirtualPath virtualDir, Boolean ignoreErrors) +187
   System.Web.Compilation.BuildManager.CompileWebFile(VirtualPath virtualPath) +74
   System.Web.Compilation.BuildManager.GetVPathBuildResultInternal(VirtualPath virtualPath, Boolean noBuild, Boolean allowCrossApp, Boolean allowBuildInPrecompile, Boolean throwIfNotFound, Boolean ensureIsUpToDate) +299
   System.Web.Compilation.BuildManager.GetVPathBuildResultWithNoAssert(HttpContext context, VirtualPath virtualPath, Boolean noBuild, Boolean allowCrossApp, Boolean allowBuildInPrecompile, Boolean throwIfNotFound, Boolean ensureIsUpToDate) +103
   System.Web.Compilation.BuildManager.GetVirtualPathObjectFactory(VirtualPath virtualPath, HttpContext context, Boolean allowCrossApp, Boolean throwIfNotFound) +165
   System.Web.Compilation.BuildManager.CreateInstanceFromVirtualPath(VirtualPath virtualPath, Type requiredBaseType, HttpContext context, Boolean allowCrossApp) +43
   System.Web.UI.PageHandlerFactory.GetHandlerHelper(HttpContext context, String requestType, VirtualPath virtualPath, String physicalPath) +31
   System.Web.UI.PageHandlerFactory.GetHandler(HttpContext context, String requestType, String virtualPath, String path) +37
   System.Web.MaterializeHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +346
   System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +155

Answer 1

Using machine configuration file from C:\Windows\Microsoft.NET\Framework\v4.0.30319\config\machine.config

您的跟踪清楚地表明您的代码正在 32 位模式下运行。 64 位程序从 c:\windows\microsoft.net\framework64 目录加载 machine.config 文件。因此 BadImageFormatException 完全是预料之中的。

您的项目不可以配置其运行模式，而是由 IIS 中的应用程序池配置来选择位数。使用高级设置，如this web page所示来配置它。请确保您与通常配置机器的人交谈，此设置更改并非偶然。