我没有必要在本地保存它，只是在浏览器中显示，以便用户可以下载它。

也不需要数据库，这就是为什么我将模型存储在缓存中。

在本地，在Visual Studio 2013上，它工作正常。但是当我发布到IIS 7时，我会收到一个未处理的执行错误。这是我收回的堆栈跟踪：

Unhandled Execution Error
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.Exception:
 
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:
 
 
[Exception]
   Rotativa.WkhtmltopdfDriver.Convert(String wkhtmltopdfPath,String switches,String html) +1364
   Rotativa.WkhtmltopdfDriver.ConvertHtml(String wkhtmltopdfPath,String html) +70
   Rotativa.ViewAsPdf.CallTheDriver(ControllerContext context) +1986
   Rotativa.AsPdfResultBase.BuildPdf(ControllerContext context) +380
   Rotativa.AsPdfResultBase.ExecuteResult(ControllerContext context) +69
   System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilterRecursive(IList`1 filters,Int32 filterIndex,ResultExecutingContext preContext,ControllerContext controllerContext,ActionResult actionResult) +109
   System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilterRecursive(IList`1 filters,ActionResult actionResult) +890
   System.Web.Mvc.ControllerActionInvoker.InvokeActionResultWithFilters(ControllerContext controllerContext,IList`1 filters,ActionResult actionResult) +97
   System.Web.Mvc.Async.<>c__DisplayClass21.<BeginInvokeAction>b__1e(IAsyncResult asyncResult) +241
   System.Web.Mvc.Controller.<BeginExecuteCore>b__1d(IAsyncResult asyncResult,ExecuteCoreState innerState) +29
   System.Web.Mvc.Async.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult) +111
   System.Web.Mvc.Controller.EndExecuteCore(IAsyncResult asyncResult) +53
   System.Web.Mvc.Async.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult) +19
   System.Web.Mvc.MvcHandler.<BeginProcessRequest>b__5(IAsyncResult asyncResult,ProcessRequestState innerState) +51
   System.Web.Mvc.Async.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult) +111
   System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +606
   System.Web.HttpApplication.ExecuteStep(IExecutionStep step,Boolean& completedSynchronously) +288
 
 
Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.0.30319.34248

我第一次使用ActionAsPDF()，但是现在我也尝试使用返回新的ViewAsPDF()。两者都提供相同的错误和堆栈跟踪。这是否必须执行某些权限？