Browsing an ASP.net app from ISS on local machine and getting ERROR

I'm having trouble viewing an ASP.net site using the browse function within ISS. When I click browse I'm able to hit the directory page but when selecting the aspx page that I require I'm getting

The resource you are looking for has been removed, had its name changed, or is temporarily unavailable.

everything looks to be ok and I have looked at numerous pages around the issue I'm having however not all are clear , this is my first time publishing and trying to hit the asp.net app via ISS.

I have added pictures of what I'm up to and seeing, any help will be appreciated.

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