{"ClassName":"System.ArgumentException","Message":"The parameters dictionary contains a null entry for parameter 'productId' of non-nullable type 'System.Guid' for method 'System.Web.Mvc.RedirectResult BuyCoupon(System.Guid)' in 'PrinterPixMvcUI.Controllers.PromotionsController'. An optional parameter must be a reference type, a nullable type, or be declared as an optional parameter.","Data":null,"InnerException":null,"HelpURL":null,"StackTraceString":" at System.Web.Mvc.ActionDescriptor.ExtractParameterFromDictionary(ParameterInfo parameterInfo, IDictionary`2 parameters, MethodInfo methodInfo)\r\n at System.Web.Mvc.ReflectedActionDescriptor.Execute(ControllerContext controllerContext, IDictionary`2 parameters)\r\n at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod(ControllerContext controllerContext, ActionDescriptor actionDescriptor, IDictionary`2 parameters)\r\n at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c.<BeginInvokeSynchronousActionMethod>b__9_0(IAsyncResult asyncResult, ActionInvocation innerInvokeState)\r\n at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncResult`2.CallEndDelegate(IAsyncResult asyncResult)\r\n at System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeActionMethod(IAsyncResult asyncResult)\r\n at System.Web.Mvc.Async.AsyncControllerActionInvoker.AsyncInvocationWithFilters.<>c__DisplayClass11_0.<InvokeActionMethodFilterAsynchronouslyRecursive>b__0()\r\n at System.Web.Mvc.Async.AsyncControllerActionInvoker.AsyncInvocationWithFilters.<>c__DisplayClass11_2.<InvokeActionMethodFilterAsynchronouslyRecursive>b__2()\r\n at System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeActionMethodWithFilters(IAsyncResult asyncResult)\r\n at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass3_6.<BeginInvokeAction>b__4()\r\n at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass3_1.<BeginInvokeAction>b__1(IAsyncResult asyncResult)\r\n at System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeAction(IAsyncResult asyncResult)\r\n at System.Web.Mvc.Controller.<>c.<BeginExecuteCore>b__152_1(IAsyncResult asyncResult, ExecuteCoreState innerState)\r\n at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult)\r\n at System.Web.Mvc.Controller.EndExecuteCore(IAsyncResult asyncResult)\r\n at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult)\r\n at System.Web.Mvc.Controller.EndExecute(IAsyncResult asyncResult)\r\n at System.Web.Mvc.MvcHandler.<>c.<BeginProcessRequest>b__20_1(IAsyncResult asyncResult, ProcessRequestState innerState)\r\n at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult)\r\n at System.Web.Mvc.MvcHandler.EndProcessRequest(IAsyncResult asyncResult)\r\n at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()\r\n at System.Web.HttpApplication.<>c__DisplayClass285_0.<ExecuteStepImpl>b__0()\r\n at System.Web.HttpApplication.ExecuteStepImpl(IExecutionStep step)\r\n at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)","RemoteStackTraceString":null,"RemoteStackIndex":0,"ExceptionMethod":"8\nExtractParameterFromDictionary\nSystem.Web.Mvc, Version=5.2.7.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35\nSystem.Web.Mvc.ActionDescriptor\nSystem.Object ExtractParameterFromDictionary(System.Reflection.ParameterInfo, System.Collections.Generic.IDictionary`2[System.String,System.Object], System.Reflection.MethodInfo)","HResult":-2147024809,"Source":"System.Web.Mvc","WatsonBuckets":null,"ParamName":"parameters"}