An unhandled exception was thrown by the application.

[yuezhongxin]

Exception message:

[Error] An unhandled exception was thrown by the application.
System.ArgumentNullException: 值不能为 null。
参数名: source
   在 System.Linq.Enumerable.Any[TSource](IEnumerable`1 source, Func`2 predicate)
   在 CNBlogs.Ad.WebApi.Controllers.AdImageUnitsController.<Get>d__2.MoveNext()
--- 引发异常的上一位置中堆栈跟踪的末尾 ---
   在 System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   在 System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   在 Microsoft.AspNet.Mvc.Controllers.ControllerActionExecutor.<CastToObject>d__7.MoveNext()
--- 引发异常的上一位置中堆栈跟踪的末尾 ---
   在 System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   在 System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   在 Microsoft.AspNet.Mvc.Controllers.ControllerActionInvoker.<InvokeActionAsync>d__6.MoveNext()
--- 引发异常的上一位置中堆栈跟踪的末尾 ---
   在 System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   在 System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   在 System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd(Task task)
   在 Microsoft.AspNet.Mvc.Controllers.FilterActionInvoker.<InvokeActionFilterAsync>d__42.MoveNext()
--- 引发异常的上一位置中堆栈跟踪的末尾 ---
   在 Microsoft.AspNet.Mvc.Controllers.FilterActionInvoker.<InvokeAsync>d__33.MoveNext()
--- 引发异常的上一位置中堆栈跟踪的末尾 ---
   在 System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   在 System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   在 Microsoft.AspNet.Mvc.Infrastructure.MvcRouteHandler.<RouteAsync>d__6.MoveNext()
--- 引发异常的上一位置中堆栈跟踪的末尾 ---
   在 System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   在 System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   在 Microsoft.AspNet.Routing.Tree.TreeRouter.<RouteAsync>d__12.MoveNext()
--- 引发异常的上一位置中堆栈跟踪的末尾 ---
   在 System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   在 System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   在 Microsoft.AspNet.Routing.RouteCollection.<RouteAsync>d__9.MoveNext()
--- 引发异常的上一位置中堆栈跟踪的末尾 ---
   在 System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   在 System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   在 Microsoft.AspNet.Builder.RouterMiddleware.<Invoke>d__4.MoveNext()
--- 引发异常的上一位置中堆栈跟踪的末尾 ---
   在 System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   在 System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   在 Microsoft.AspNet.IISPlatformHandler.IISPlatformHandlerMiddleware.<Invoke>d__9.MoveNext()
--- 引发异常的上一位置中堆栈跟踪的末尾 ---
   在 System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   在 System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   在 Microsoft.AspNet.Hosting.Internal.RequestServicesContainerMiddleware.<Invoke>d__3.MoveNext()
--- 引发异常的上一位置中堆栈跟踪的末尾 ---
   在 System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   在 System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   在 Microsoft.AspNet.Hosting.Internal.HostingEngine.<>c__DisplayClass35_0.<<Start>b__0>d.MoveNext()
--- 引发异常的上一位置中堆栈跟踪的末尾 ---
   在 System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   在 System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   在 Microsoft.AspNet.Server.Kestrel.Http.Frame.<RequestProcessingAsync>d__103.MoveNext()

project.json:

{
  "version": "1.0.0-*",
  "compilationOptions": {
    "emitEntryPoint": true
  },

  "dependencies": {
    "EntityFramework.Core": "7.0.0-rc2-16432",
    "EntityFramework.MicrosoftSqlServer": "7.0.0-rc2-16432"
    "Microsoft.AspNet.IISPlatformHandler": "1.0.0-rc2-15933",
    "Microsoft.AspNet.Mvc": "6.0.0-rc2-16498",
    "Microsoft.AspNet.Server.Kestrel": "1.0.0-rc2-16088",
    "Microsoft.AspNet.StaticFiles": "1.0.0-rc2-15977",
    "Microsoft.Extensions.Configuration.FileProviderExtensions": "1.0.0-rc2-15866",
    "Microsoft.Extensions.Configuration.Json": "1.0.0-rc2-15866",
    "Microsoft.Extensions.Logging": "1.0.0-rc2-15866",
    "Microsoft.Extensions.Logging.Console": "1.0.0-rc2-15867",
    "Microsoft.Extensions.Logging.Debug": "1.0.0-rc2-15867",
    "Serilog.Framework.Logging": "1.0.0-*"
  },

  "commands": {
    "web": "Microsoft.AspNet.Server.Kestrel"
  },

  "frameworks": {
    "dnx451": { }
  },

  "exclude": [
    "wwwroot",
    "node_modules"
  ],
  "publishExclude": [
    "**.user",
    "**.vspscc"
  ]
}

Applications published on IIS7.

[davidfowl]

Looks like a bug in your application.

[yuezhongxin]

@davidfowl Sorry, really application code problem, thanks.