Question

我正在使用.net 4.5 Web API项目（项目＃1），我收到了一个奇怪的错误。最初一切都建在一个项目中。我发现我想将业务逻辑（Project BLL）分解为一个单独的类库，以便可以在其他项目中重用它。我已经完成了将它拆开的过程，并发现它可以从Project＃2开始工作。当我尝试运行Project＃1时，我有一个奇怪的问题，当我尝试在Project BLL中调用一个函数时，我在Application_Start中得到一个TypeLoadException。我在Project＃2中调用了同样的功能而没有任何问题。问题似乎只出现在项目＃1中，在拆分之前工作正常。我得到的确切错误信息是：

Could not load type 'Project.BLL.Mappers.v1.AutoMapperConfiguration' from assembly 'Project.BLL, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null'.

在Project＃1中，我可以使用Intelesense和F12（Go To Definition）来查看这两个项目是否正确连接。有什么想法吗？

更新这是整个堆栈跟踪。它没有遇到Global.asax.cs中的断点，所以我无法真正达到内部异常：

 [TypeLoadException: Could not load type 'Project.BLL.Mappers.v1.AutoMapperConfiguration' from assembly 'Project.BLL, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null'.]
   Project.BLL.WebApiApplication.Application_Start() in d:\Solutions\Project_1\Global.asax.cs:58

[HttpException (0x80004005): Could not load type 'Project.BLL.Mappers.v1.AutoMapperConfiguration' from assembly 'Project.BLL, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null'.]
   System.Web.HttpApplicationFactory.EnsureAppStartCalledForIntegratedMode(HttpContext context, HttpApplication app) +12864365
   System.Web.HttpApplication.RegisterEventSubscriptionsWithIIS(IntPtr appContext, HttpContext context, MethodInfo[] handlers) +175
   System.Web.HttpApplication.InitSpecial(HttpApplicationState state, MethodInfo[] handlers, IntPtr appContext, HttpContext context) +304
   System.Web.HttpApplicationFactory.GetSpecialApplicationInstance(IntPtr appContext, HttpContext context) +404
   System.Web.Hosting.PipelineRuntime.InitializeApplication(IntPtr appContext) +475

[HttpException (0x80004005): Could not load type 'Project.BLL.Mappers.v1.AutoMapperConfiguration' from assembly 'Project.BLL, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null'.]
   System.Web.HttpRuntime.FirstRequestInit(HttpContext context) +12881108
   System.Web.HttpRuntime.EnsureFirstRequestInit(HttpContext context) +159
   System.Web.HttpRuntime.ProcessRequestNotificationPrivate(IIS7WorkerRequest wr, HttpContext context) +12722297

Answer 1

检查项目配置并确保两个项目都针对相同的框架和平台（例如，任何Cpu）

TypeLoadExeception从Application_Start调用类库

1 个答案: