HTTP Error 502.5 - ANCM Out-Of-Process Startup Failure (Windows Server)

After installing or updating the system, you may receive the error HTTP Error 502.5 - ANCM Out-Of-Process Startup Failure upon accessing the website:

The main cause for this problem is not having previously installed the ASP.NET Core 10.0 Hosting Bundle, required by Amplia 5.0 (download it here).

To check that the ASP.NET Core Runtime 10.0 is installed, run the following command on a command prompt or Powershell:

dotnet --list-runtimes

The output should contain two entries with version 10.0.x, for instance:

Microsoft.AspNetCore.App 10.0.x [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.NETCore.App 10.0.x [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]

Although this is the main cause, there are several other factors that may cause this issue. To diagnose the root cause, see Troubleshooting startup errors.