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Error accessing ADD Web - HTTP Error 500.19 - Internal Server Error

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  • Error accessing ADD Web - HTTP Error 500.19 - Internal Server Error

    The below error may be encountered when accessing ADD Web if .NET Core 2.0 is not installed.
    This prerequisite is included with the install files in the "ISSetupPrerequisites" folder. The file name is "DotNetCore.2.0.0-WindowsHosting.exe".
    In my scenario, I was installing Windows updates at the same time as running the ADD installer and this caused the .Net Core installation to fail. Re-running the .NET core installation after the Windows updates completed resolved the error and ADD Web was then accessible.

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

    Module: IIS Web Core

    This error occurs when there is a problem reading the configuration file for the Web server or Web application. In some cases, the event logs may contain more information about what caused this error. "

    ADD Version Installed: 2018.5.1
    Included in downloaded install files at this directory: \ISSetupPrerequisites\{506A420F-1F74-4371-9E84-EFF36200CORE}
    [InstallFiles]\ISSetupPrerequisites\{506A420F-1F74-4371-9E84-EFF36200CORE}
    Last edited by Michael Avakian; 1 week ago.

  • #2
    Error accessing ADD Web - HTTP Error 500.19 - Internal Server Error


    The below error may be encountered if there are missing Windows prerequisites on the IIS Web Server:

    ERROR:
    This configuration section cannot be used at this path. This happens when the section is locked at the parent level. Locking is either by default (override ModeDefault="Deny"), or set explicitly by a location tag with overrideMode="Deny" or the legacy allowOverride="false".

    </security>
    <modules runAllManagedModulesForAllRequests="true">
    <remove name="WebDAVModule" />
    </modules>

    The proper solution is to run the EASE utility found on myipro.iprotech.com to identify which prerequisites are missing. In my scenario the Application Development Features were not installed. See screenshot below. The missing features can be installed from the Windows Server Manager or the Windows Control Panel > Programs and Features > Turn Windows Features On or Off (depending on the OS).
    Last edited by Michael Avakian; 1 week ago.

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