Asp.net-core – HTTP Error 500.19 in IIS 10 and Visual Studio 2017

asp.netasp.net-coreiisiis-10

I know that similar questions have been asked but their answer are not solving my problem.

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 BeginRequest Handler Not yet determined Error Code 0x80070021
Config Error This configuration section cannot be used at this
path. This happens when the section is locked at a parent level.
Locking is either by default (overrideModeDefault="Deny"), or set
explicitly by a location tag with overrideMode="Deny" or the legacy
allowOverride="false".

Config File \?\C:\mySite\web.config

Requested URL http://localhost:80/mySite/login

Physical Path C:\mySite\login

Logon Method Not yet determined

Logon User Not yet determined

Config Source:

65: </staticContent>

66: <handlers>

67: 

<add name="ReportViewerWebControlHandler"
    > preCondition="integratedMode" verb="*"
    > path="Reserved.ReportViewerWebControl.axd"
    > type="Microsoft.Reporting.WebForms.HttpHandler,
    > Microsoft.ReportViewer.WebForms, Version=10.0.0.0, Culture=neutral,
    > PublicKeyToken=b03f5f7f11d50a3a" />

I checked in Windows features also and they look alright.

I've tried to set overrideModelDefault to Allow and to remove WebServiceHandlerFactory from applicationhost.congif but no result.

I'm using Visual Studio 2017 and IIS 10.

Any other ideas how to solve this?

Best Answer

  1. Press Win Key+R to Open Run Window
  2. in the Run Window, enter "OptionalFeatures.exe"
  3. in the features window, Click: "Internet Information Services"
  4. Click: "World Wide Web Services"
  5. Click: "Application Development Features"
  6. Check the features.

I'm using Windows 10

Note: "You must be signed in as an administrator to be able to turn Windows features on or off." If Windows Features is empty or blank, then double-check to make sure that the Windows Modules Installer service is enabled and set to Automatic.

Update:

Make sure .NET Core Windows Server Hosting bundle is installed

Other possible solutions:

Solution 1:

Run these two commands from an elevated command prompt

%windir%/system32/inetsrv/appcmd unlock config /section:anonymousAuthentication

%windir%/system32/inetsrv/appcmd unlock config -section:windowsAuthentication

Solution 2: Using PowerShell

Install-WindowsFeature NET-Framework-Core
Install-WindowsFeature Web-Server -IncludeAllSubFeature
Install-WindowsFeature NET-Framework-Features -IncludeAllSubFeature
Install-WindowsFeature NET-Framework-47-ASPNET -IncludeAllSubFeature
Install-WindowsFeature Application-Server -IncludeAllSubFeature
Install-WindowsFeature MSMQ -IncludeAllSubFeature
Install-WindowsFeature WAS -IncludeAllSubFeature

Solution 3: Removing the <rewrite> tag in web.config

<system.webServer>
    ...
    <rewrite>
    ...
    </rewrite>
</system.webServer>
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