Http Error 500.30 - Ancm In-Process Start Failure

HTTP Error 500.30 - ANCM In-Process Start Failure

In ASP.NET Core 2.2, a new Server/ hosting pattern was released with IIS called IIS InProcess hosting. To enable inprocess hosting, the csproj element AspNetCoreHostingModel is added to set the hostingModel to inprocess in the web.config file. Also, the web.config points to a new module called AspNetCoreModuleV2 which is required for inprocess hosting.

If the target machine you are deploying to doesn't have ANCMV2, you can't use IIS InProcess hosting. If so, the right behavior is to either install the dotnet hosting bundle to the target machine or downgrade to the AspNetCoreModule.

Source: jkotalik (Github)

Try changing the section in csproj (edit with a text editor)

  <PropertyGroup>
    <TargetFramework>netcoreapp2.2</TargetFramework>
    <AspNetCoreHostingModel>InProcess</AspNetCoreHostingModel>
  </PropertyGroup>

to the following ...

 <PropertyGroup>
    <TargetFramework>netcoreapp2.2</TargetFramework>
    <AspNetCoreHostingModel>OutOfProcess</AspNetCoreHostingModel>
    <AspNetCoreModuleName>AspNetCoreModule</AspNetCoreModuleName>
 </PropertyGroup>

Source (Github)

IIS and NET Core HTTP Error 500.30 - ANCM In-Process Start Failure .net core 3.1

After heading whole 1 day I find a great solution, please the following point :-

1. go to your project folder via cmd.
2. type dotnet publish --e/:output (note this will publish the code in e drive output
   folder)
3. go to output folder via cmd
4. type dotnet <project-name.dll> (this will run the application in localhost:5003)
5. If any issue occur with above step this will show in the cmd, I had faced the issue of,
   where one folder is missing. Once I added the folder the issue resolved.

HTTP Error 500.30 - ANCM In-Process Start Failure with newly created app service

The dreaded 500.3x ACNM error can mean different things, so I'm going to assist you in pinpointing those things.

My recommendation:
Go to Azure Portal > Your App Service > development tools

Open console.

Screen should look like this:
Console Screen Azure

Type in (YourWebAppName).exe

What this will do, is show error messages that are relevant to your startup issue.

Also, some information regarding errors can be seen here:
https://docs.microsoft.com/en-us/aspnet/core/test/troubleshoot-azure-iis?view=aspnetcore-3.1#app-startup-errors

Deploying .net core web app getting error HTTP Error 500.30 - ANCM In-Process Start Failure

While Creating publish in visiual studio always do Delete existing file prior to deploy checked.
also all your configuration path to json etc should be ok then this will not happen

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