HTTP Error 500.30 - ASP.NET Core app failed to start

Following the upgrade process, when trying to open the Devolutions Server web page, the browser displays HTTP Error 500.30 - ASP.NET Core app failed to start.

HTTP Error 500.30 - ASP.NET Core app failed to start
HTTP Error 500.30 - ASP.NET Core app failed to start

Solution

Verify that Enable 32-Bit Applications is set to False in the Devolutions Server application pool's advanced settings in IIS Manager.

Enable 32-Bit Applications set to False
Enable 32-Bit Applications set to False

If Enable 32-Bit Applications is already set to false, ensure that the service account designated as the Application Pool Identity in the Devolutions Server application pool has enough rights on the App_Data subfolder in the Devolutions Server web application folder.

Make sure that the APS.Net Core Hostin Bundle installed on the server where Devolutions Server is hosted is the latest version.

Please contact us at service@devolutions.net if this solution does not solve your problem.