IIS cannot access ASP.NET web.config file


I'm a new forge user in BIM 360, my viewing model works well in VS but when it move to IIS, it shows error code about web.config file with error code

HTTP Error 500.19 - Internal Server Error The requested page cannot be accessed because the related configuration data for the page is invalid.

Detailed Error Information: Module IIS Web Core Notification Unknown Handler Not yet determined Error Code 0x8007000d Config Error
Config File \?\C:\inetpub\wwwroot\BIM 360\web.config Requested URL http://www.surveyviewer.com:3000/ Physical Path
Logon Method Not yet determined Logon User Not yet determined

asked on Stack Overflow Apr 1, 2021 by fptam

1 Answer


This is not related to forge, you may google based on your IIS version, there's already an answer for IIS V7

answered on Stack Overflow Apr 1, 2021 by varunpatil

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