orchestrator
2024.10
true
- Getting Started
- Requirements
- Best Practices
- Installation
- Updating
- Identity Server
- Troubleshooting startup errors

Orchestrator installation guide
Last updated Sep 24, 2025
Troubleshooting: HTTP Error 500.30 ASP.NET Core app failed to start
linkThis error occurs when the ASP.NET Core Module attempts to start the .NET Core CLR in-process,
but does not succeed, preventing the application from starting. The cause can usually be
determined by checking the Application Event Log and the ASP.NET Core Module
stdout
log.
Figure 1. Startup error page
How to identify the exception
link-
Open the Windows Event Viewer or the Azure Event Log for Azure App Service.
-
Look for an event containing
Level `Error`
andSource `.Net Runtime`
. This is followed by two other events containingSource `IIS AspNetCore Module V2`
.