mono The view 'Index' or its master was not found

Question

by this tutorial http://www.davidloo.com/?p=479 I installed monodevelop and created ASP.NET MVC project. but when I run F5 so I have this output:

System.InvalidOperationException
The view 'Index' or its master was not found or no view engine supports the searched locations. The following locations were searched:
~/Views/Home/Index.aspx
~/Views/Home/Index.ascx
~/Views/Shared/Index.aspx
~/Views/Shared/Index.ascx
~/Views/Home/Index.cshtml
~/Views/Home/Index.vbhtml
~/Views/Shared/Index.cshtml
~/Views/Shared/Index.vbhtml

Description: HTTP 500.Error processing request.

Details: Non-web exception. Exception origin (name of application or object): System.Web.Mvc.



Exception stack trace:
  at System.Web.Mvc.ViewResult.FindView (System.Web.Mvc.ControllerContext context) [0x00092] in <filename unknown>:0 
  at System.Web.Mvc.ViewResultBase.ExecuteResult (System.Web.Mvc.ControllerContext context) [0x00044] in <filename unknown>:0 
  at System.Web.Mvc.ControllerActionInvoker.InvokeActionResult (System.Web.Mvc.ControllerContext controllerContext, System.Web.Mvc.ActionResult actionResult) [0x00000] in <filename unknown>:0 
  at System.Web.Mvc.ControllerActionInvoker+<InvokeActionResultWithFilters>c__AnonStorey5.<>m__0 () [0x00000] in <filename unknown>:0 
  at System.Web.Mvc.ControllerActionInvoker.InvokeActionResultFilter (IResultFilter filter, System.Web.Mvc.ResultExecutingContext preContext, System.Func`1 continuation) [0x00025] in <filename unknown>:0 

Version Information: 4.2.1 (Stable 4.2.1.102/6dd2d0d Thu Nov 12 09:52:44 UTC 2015); ASP.NET Version: 4.0.30319.17020 Powered by Mono

MonoDevelop I have in 6.0 version

And file: Views/Home/Index.cshtml exists

Do you know anybody what can be wrong?? Thanks

Answer 1

The described exception happens in mono when your code tries to produce really async execution.

Mono does not support the async pipeline.

I make pull request for mono like described in this GitHUB post. It makes synchronous execution of asynchronous web API stack.

It is derived from these SO questions:

• Mono .Net support for async await?
• Mono with Owin Authentication
• 404 response appended to webapi response
• Mono: The view 'Index' or its master was not found

Now you may use async pipeline with this fix for Mono.