502.5 error when deploying asp.net core website using IIS

Tori E

I have an ASP.NET Core 1.0 application that has been successfully deployed and running on a pre-production server for several months. Today I tried to deploy the website to our production server using this article as a guide : https://docs.asp.net/en/latest/publishing/iis.html

Most importantly, we can't get past this error:

HTTP Error 502.5 - Process Failure

Common causes of this issue:
* The application process failed to start
* The application process started but then stopped
* The application process started but failed to listen on the configured port

We tried the ideas listed in this article with no luck: ASP.NET Core 1.0 on IIS Error 502.5

How do you debug a 502.5 error to find the actual reason for the failure?

The log files for the application are being created, but unfortunately they are empty. The web server's event viewer contains the following entries:

Process was created with commandline 'D:\Applications\PVP\UserInterface.exe' but failed to get the status, errorCode = 0x80070005

Any help would be greatly appreciated! Conservative Party.

steven frank

I've been working on this with a .NET Core 2.0 website, and I got over it once I realized that IIS needs a web.config on the server.

Here is my file, for me the key elements are processPath and arguments.

<?xml version="1.0" encoding="utf-8"?>
<configuration>
  <system.webServer>
<handlers>
  <add name="aspNetCore" path="*" verb="*" modules="AspNetCoreModule" resourceType="Unspecified" />
</handlers>
<aspNetCore processPath="dotnet" 
    arguments=".\My App.dll" 
    stdoutLogEnabled="true" 
    stdoutLogFile=".\logs\stdout" />
  </system.webServer>
</configuration>

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