Website is working fine only after iis is restarted

Hey, You will get this error if the View Corresponding to the ActionResult is not available. It can be a View or Layout that is missing corresponding to the ActionResult.

For example, on HomeController for the AtionResult Error, the View is missing. Now if we call the Home/Error on the browser, then you will get this error. To solve this issue just add the missing View or Layout.

 Hi,
I am getting the error before it connects to the database 

Please find the error which I got from event viewer: Can someone please check it. 

Event code: 3005 
Event message: An unhandled exception has occurred. 
Event ID: bd3bf8203ea34403ba4b93bf4b7adfd7 
Event sequence: 251 
Event occurrence: 9 
Event detail code: 0
Exception information: 
    Exception type: InvalidOperationException 
    Exception message: The view 'Error' or its master was not found or no view engine supports the searched locations. The following locations were searched:
~/Views/UserLogin/Error.aspx
~/Views/UserLogin/Error.ascx
~/Views/Shared/Error.aspx
~/Views/Shared/Error.ascx
~/Views/UserLogin/Error.cshtml
~/Views/UserLogin/Error.vbhtml
~/Views/Shared/Error.cshtml
~/Views/Shared/Error.vbhtml
   at System.Web.Mvc.ViewResult.FindView(ControllerContext context)
   at System.Web.Mvc.ViewResultBase.ExecuteResult(ControllerContext context)
   at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass3_1.b__1(IAsyncResult asyncResult)
   at System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeAction(IAsyncResult asyncResult)
   at System.Web.Mvc.Controller.<>c.b__152_1(IAsyncResult asyncResult, ExecuteCoreState innerState)
   at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult)
   at System.Web.Mvc.Controller.EndExecuteCore(IAsyncResult asyncResult)
   at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult)
   at System.Web.Mvc.Controller.EndExecute(IAsyncResult asyncResult)
   at System.Web.Mvc.MvcHandler.<>c.b__20_1(IAsyncResult asyncResult, ProcessRequestState innerState)
   at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult)
   at System.Web.Mvc.MvcHandler.EndProcessRequest(IAsyncResult asyncResult)
   at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
   at System.Web.HttpApplication.ExecuteStepImpl(IExecutionStep step)
   at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)

Hi Hanusha,

There could be multiple reasons why it is happening. Can you share more error details from developer tools, event viewer?