这个论坛上有很多关于 BadImageFormatException 的问题，但没有一个与我的问题完全匹配。

我有一个包含多个项目的解决方案。当我在 Debug 或 Release + Any CPU 中运行时，一切正常。然而，当我切换到 x64 并运行我的 ASP.NET MVC 项目时，我得到了臭名昭著的 BadImageFormatException

Could not load file or assembly 'AgileEFLib' or one of its dependencies. An attempt was made to load a program with an incorrect format.

AgileEFLib 是一个内部实用程序库，因此我在这方面有很大的灵 active 。但真正奇怪的是，当我运行一个也依赖于 AgileEFLib 的控制台应用程序时，它运行得很好。唯一一次失败是在我运行网站时。

我已经检查过 Release|x64 配置中的所有项目都设置为编译为 x64。

我还能做些什么来解决这个问题？

编辑: 另一个有用的信息是，只有在我使用 Visual Studio 的 IIS Express 进行调试时才会出现此问题。当我发布并部署到 IIS 时，它工作正常。

编辑:有关错误的更多详细信息:

Server Error in '/' Application.
--------------------------------------------------------------------------------

Could not load file or assembly 'AgileEFLib' or one of its dependencies. An attempt was made to load a program with an incorrect format. 
  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.BadImageFormatException: Could not load file or assembly 'AgileEFLib' or one of its dependencies. An attempt was made to load a program with an incorrect format.

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 'AgileEFLib' could not be loaded.



=== Pre-bind state information ===
LOG: DisplayName = AgileEFLib
 (Partial)
WRN: Partial binding information was supplied for an assembly:
WRN: Assembly Name: AgileEFLib | 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:///C:/src/MyProject/
LOG: Initial PrivatePath = C:\src\MyProject\bin
Calling assembly : (Unknown).
===
LOG: This bind starts in default load context.
LOG: Using application configuration file: C:\src\MyProject\web.config
LOG: Using host configuration file: C:\Users\Shaul\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:/Windows/Microsoft.NET/Framework/v4.0.30319/Temporary ASP.NET Files/root/15406131/a0c36da/AgileEFLib.DLL.
LOG: Attempting download of new URL file:///C:/Windows/Microsoft.NET/Framework/v4.0.30319/Temporary ASP.NET Files/root/15406131/a0c36da/AgileEFLib/AgileEFLib.DLL.
LOG: Attempting download of new URL file:///C:/src/MyProject/bin/AgileEFLib.DLL.
ERR: Failed to complete setup of assembly (hr = 0x8007000b). Probing terminated.

最佳答案

尝试按照 Debugging VS2013 Websites Using 64-bit IIS Express 中的说明进行操作:

If you are working on ASP.NET MVC web sites in Visual Studio 2013 (VS2013), you need to make one registry change if you want to run IIS Express as a 64-bit process by default. Use one of the methods, below.

Command-Line:

reg add HKEY_CURRENT_USER\Software\Microsoft\VisualStudio\12.0\WebProjects /v Use64BitIISExpress /t REG_DWORD /d 1

关于c# - BadImageFormatException 调试以 x64 模式运行的网站，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/23786839/