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

Actually we dint give permissions of virtual directory to default user so for that we got error.

Solutions :

We make it permissions to default user and we should set application pool identity to default user then its working fine now


Thank You

I refered this url http://learn.iis.net/page.aspx/624/application-pool-identities/

and configured iis server and finally i got result


Thank You

I My case it was because off .Net Framework. please change it.

go to IIS application tool
Default application pool if it only application that is there and change it to correct one.

or create one aaplication pool.

Thank you.

Please check if ,IUser,and IIS_User permission has been granted on the folder on which you r website has been installed

Open control panel
Click on" program" link (not uninstall programs)
Click" turn windows features on/off" link
locate" Internet Information services IIS" in the pop up window and expand its node
Expand the" World Wide Web Service" node
Expand "Application Development Features" node
check the check box of"ASP.NET"
Then click ok button

hi dear


you must download dotnet-hosting-3.0.0-preview5-19227-01-win for dot net core 3/ or dotnet core2hosting windows for core 2

and then run as administrator cmd , type iisreset

so refresh your localhost app

best regard
M.M.Tofighi from Iran