.NET Core 3.0 and IIS: HTTP Error 500.30 - ANCM In-Process Start Failure: failed to load coreclr

.net-core iis-8 .net-core-3.0
Yossi Geretz picture Yossi Geretz · Dec 17, 2019 · Viewed 14.8k times · Source

My application runs fine within IIS Express on my development workstation, but I am having trouble deploying it to IIS. I receive the following error when I browse to the application:

HTTP Error 500.30 - ANCM In-Process Start Failure

There's not much in the Windows Event Log:

Application '/LM/W3SVC/2/ROOT' with physical root 'c:\inetpub\cashflow\' failed to load coreclr. Exception message:
Error occured when initializing inprocess application, Return code: 0x80008083

As far as I can see, the application runs fine when invoked from the command line:

Running from Command Line

Here's what I see in the failed request trace: (I'm a bit mystified as to why files are identified as F:... Tehre is no F:\ drive on this machine!)

Failed Request Trace

Sorry, I am unable to provide the full trace XML as it exceeds 100,000 characters. If there is somethign specific you'd like to see let me know and I'll try to provide the relevant snippet. Thanks for any advice which you can provide!

Answer

Yossi Geretz picture Yossi Geretz · Dec 17, 2019

I changed the specification in Web.config to run out of process. Originally the specification was for InProcess as follows:

  <aspNetCore processPath="dotnet" arguments=".\Cashflow.dll" stdoutLogEnabled="false" hostingModel="InProcess" stdoutLogFile=".\logs\stdout">

I changed this to OutOfProcess:

  <aspNetCore processPath="dotnet" arguments=".\Cashflow.dll" stdoutLogEnabled="false" hostingModel="OutOfProcess" stdoutLogFile=".\logs\stdout">

and Bingo! The application runs as expected.

Can anyone explain why?

Related questions

HTTP Error 500.19 when publish .net core project into iis with 0x80070005

I want to publish a sample .net core web application on my pc's IIS manager but I failed. I am using Microsoft guidance but it doesn't work for me, if you have reasonable experience to fix this problem I would …

Read More
AddTransient, AddScoped and AddSingleton Services Differences

I want to implement dependency injection (DI) in ASP.NET Core. So after adding this code to ConfigureServices method, both ways work. What is the difference between the services.AddTransient and service.AddScoped methods in ASP.NET Core? public void …

Read More
How to read AppSettings values from a .json file in ASP.NET Core

I have set up my AppSettings data in file appsettings/Config .json like this: { "AppSettings": { "token": "1234" } } I have searched online on how to read AppSettings values from .json file, but I could not get anything useful. I tried: var configuration = …

Read More