IIS Server & ASP.Net Core - 500.19 with error code 0x8007000d on httpplatformhandler tag

Question

I am getting the following error when I try to launch my ASP.Net Core App using IIS Server v7.5 ... I published the website (File System option in Visual Studio) to a specific directory successfully. It launches fine from approot/web.cmd file. But when I try to hook it up to IIS Server and point it to the wwwroot folder, I get the following error:

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 \?\D:\WebDevelopment\UAT\creativeNamePROD\wwwroot\web.config

Requested URL http://10.2.177.226:59/

Physical Path

Logon Method Not yet determined

Logon User Not yet determined

Failed Request Tracing Log Directory

Below are two different web.config files I tried any neither one worked. When I try to get into Configuration Editor within IIS, I get an unclear error as well. Any help would be greatly appreciated!!!

<configuration>
<system.web>
  <httpRuntime maxQueryStringLength="64768" maxUrlLength="65536" />
</system.web>
<system.webServer>
<security>
  <requestFiltering>
    <requestLimits maxQueryString="64768" />
  </requestFiltering>
</security>
<handlers>
  <add name="httpplatformhandler" path="*" verb="*" modules="httpPlatformHandler" resourceType="Unspecified" />
</handlers>
<httpPlatform processPath="..\approot\web.cmd" arguments="" stdoutLogEnabled="false" stdoutLogFile="..\logs\stdout.log" startupTimeLimit="3600"></httpPlatform>
</system.webServer>
</configuration>

Web.config #2 -gets the same error

<configuration>
  <system.webServer>
    <handlers>
      <add name="httpplatformhandler" path="*" verb="*" modules="httpPlatformHandler" resourceType="Unspecified" />
    </handlers>
    <httpPlatform processPath="..\approot\web.cmd" arguments="" stdoutLogEnabled="false" stdoutLogFile="..\logs\stdout.log" startupTimeLimit="3600"></httpPlatform>
  </system.webServer>
</configuration>

same error for me, but just a hint, on my windows 10 machine it works fine, but same exact files, deployed on Win Server 2013 R2, results in above error — Adrian Nasui
Did you install the .NET Core Windows Server Hosting bundle? This is needed for IIS to work as a reverse proxy for the .net core libraries. You'll find the link in this article: docs.microsoft.com/en-us/aspnet/core/publishing/iis I had the same problem before installing this on my dev machine. — Jørgen Tvedt
To future readers. This question is valid for old ASP.NET Core releases (ASP.NET 5 RC or older builds), where there was no ASP.NET Core module, but only HTTPPlatformHandler (for httpPlatform tag). No one should see such a web.config any more. — Lex Li

The Red Pea The Red Pea · Accepted Answer · 2017-04-05T18:40:30

I was getting this error. I fixed this error by installing the .NET Core Windows Server Hosting bundle (vs the Runtime Bundle), as described in instructions like this one.

Install the .NET Core Hosting Bundle

Install the .NET Core Hosting Bundle on the hosting system. The bundle installs the .NET Core Runtime, .NET Core Library, and the ASP.NET Core Module. The module creates the reverse proxy between IIS and the Kestrel server. If the system doesn't have an Internet connection, obtain and install the Microsoft Visual C++ 2015 Redistributable before installing the .NET Core Hosting Bundle.

As @Patrick says you can download the bundle installables from this link.

After installing that Module, my app served (i.e. no 500 error).

I see @Jørgen made this comment on OP already, so he gets credit.

EDIT Please confirm you install the Hosting bundle vs the Runtime Bundle per comment by @MDave

Did you install the .NET Core Windows Server Hosting bundle? This is needed for IIS to work as a reverse proxy for the .net core libraries. You'll find the link in this article: docs.microsoft.com/en-us/aspnet/core/publishing/iis I had the same problem before installing this on my dev machine. – Jørgen Tvedt Mar 28 at 6:31

IIS Server & ASP.Net Core - 500.19 with error code 0x8007000d on httpplatformhandler tag

4 Answers