Specified argument was out of the range of valid values. Parameter name: site

I had the same issue i resolved it by repairing the iis server in programs and features.

GO TO

Controll panel > uninstall a program and then right click the installed iis express server (installed with Visual Studio) and then click repair.

this is how i solved this issue


This occurred to me when I applied the 2017 Fall Creator Update. I was able to resolve by repairing IIS 10.0 Express (I do not have IIS installed on my box.)

Note: As a user pointed out in the comments,

Repair can be found in "Programs and Features" - the "classic" control panel.


If using IIS:

  • control panel
  • Programs
  • open or close windows features
  • tick internet information services
  • then restart your visual studio

If using IIS Express:

Open 'Add/Remove Programs' from the old control panel and run a repair on IIS Express Or you might go Control Panel ->> Programs ->> Programs and Features ->> Turn Windows features on or off ->> Internet Information Services and check the checkbox as shown in the picture below:

enter image description here

Tags:

C#

Visual Studio

Iis

Web Config

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