"无法加载文件或程序集或其中一个依赖项.尝试加载格式不正确的程序."

Question

在VS中进行调试时,在VS中启动调试时会引发错误.

错误如下:

Could not load file or assembly 'p4dn, Version=1.0.1.0, Culture=neutral, PublicKeyToken=null' 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 'p4dn, Version=1.0.1.0, Culture=neutral, PublicKeyToken=null' 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.  

Stack Trace: 


[BadImageFormatException: Could not load file or assembly 'p4dn, Version=1.0.1.0, Culture=neutral, PublicKeyToken=null' or one of its dependencies. An attempt was made to load a program with an incorrect format.]
   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: Could not load file or assembly 'p4dn, Version=1.0.1.0, Culture=neutral, PublicKeyToken=null' 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) +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.BuildProvidersCompiler..ctor(VirtualPath configPath, Boolean supportLocalization, String outputAssemblyName) +54
   System.Web.Compilation.ApplicationBuildProvider.GetGlobalAsaxBuildResult(Boolean isPrecompiledApp) +232
   System.Web.Compilation.BuildManager.CompileGlobalAsax() +51
   System.Web.Compilation.BuildManager.EnsureTopLevelFilesCompiled() +337

[HttpException (0x80004005): Could not load file or assembly 'p4dn, Version=1.0.1.0, Culture=neutral, PublicKeyToken=null' or one of its dependencies. An attempt was made to load a program with an incorrect format.]
   System.Web.Compilation.BuildManager.ReportTopLevelCompilationException() +58
   System.Web.Compilation.BuildManager.EnsureTopLevelFilesCompiled() +512
   System.Web.Hosting.HostingEnvironment.Initialize(ApplicationManager appManager, IApplicationHost appHost, IConfigMapPathFactory configMapPathFactory, HostingEnvironmentParameters hostingParameters) +729

[HttpException (0x80004005): Could not load file or assembly 'p4dn, Version=1.0.1.0, Culture=neutral, PublicKeyToken=null' or one of its dependencies. An attempt was made to load a program with an incorrect format.]
   System.Web.HttpRuntime.FirstRequestInit(HttpContext context) +8921851
   System.Web.HttpRuntime.EnsureFirstRequestInit(HttpContext context) +85
   System.Web.HttpRuntime.ProcessRequestInternal(HttpWorkerRequest wr) +259

当我创建一个使用'p4dn.dll'的C#项目时,没有遇到此错误.

这是我的第一个ASP项目,我也读过类似的问题,如"http://stackoverflow.com/questions/41449/i-get-a-an-attempt-was-made-to-load-a-program-with -an-incorrect-format-error-o"和"http://stackoverflow.com/questions/1648213/could-not-load-file-or-assembly-xxx-or-one-of-its-dependencies-an -attempt-是".他们无法解决我的问题.

我怎么解决这个问题？

Answer 1

现在有一个菜单选项来运行64位版本的IIS Express.从Visual Studio菜单中选择工具 - >选项... - >项目和解决方案 - > Web项目

单击"为网站和项目使用64位版本的IIS Express"按钮

Answer 2

转到各自==>站点应用程序池,

单击==>高级设置

     Change value of ==> "Enable 32-Bit Applications" from  False to True 

Answer 3

我尝试使用IIS Express 8.0运行(调试)64位MVC站点时遇到同样的错误消息.我确认我的所有项目都是针对x64平台的.

问题出现是因为Visual Studio运行32位版本的IIS Express.我能让它工作的唯一方法是通过手动执行以下命令来运行64位IIS Express.

"C:\Program Files\IIS Express\iisexpress.exe"  /config:"U:\IISExpress\config\applicationhost.config"  /site:"Imaging.Web" /apppool:"Clr4IntegratedAppPool"

然后在Visual Studio Web项目中转到"属性",选择"使用自定义Web服务器",然后输入您站点的URL.

要进行调试,请转到"调试">"附加到进程...",然后选择正在运行的IIS Express实例.

Visual Studio团队真的应该在Project Properties中将它作为一个选项.