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Add note about ANCM 500.38 error (#17930)

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Andrew Stanton-Nurse 2020-04-20 13:54:15 -07:00 committed by GitHub
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aspnetcore/test/troubleshoot-azure-iis.md
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@ -154,6 +154,15 @@ ANCM failed to start within the provied startup time limit. By default, the time
This error can occur when starting a large number of apps on the same machine. Check for CPU/Memory usage spikes on the server during startup. You may need to stagger the startup process of multiple apps. This error can occur when starting a large number of apps on the same machine. Check for CPU/Memory usage spikes on the server during startup. You may need to stagger the startup process of multiple apps.
### 500.38 ANCM Application DLL Not Found
ANCM failed to locate the application DLL, which should be next to the executable.
This error occurs when hosting an app packaged as a [single-file executable](/dotnet/core/whats-new/dotnet-core-3-0#single-file-executables) using the in-process hosting model. The in-process model requires that the ANCM load the .NET Core app into the existing IIS process. This scenario isn't supported by the single-file deployment model. Use **one** of the following approaches in the app's project file to fix this error:
1. Disable single-file publishing by setting the `PublishSingleFile` MSBuild property to `false`.
1. Switch to the out-of-process hosting model by setting the `AspNetCoreHostingModel` MSBuild property to `OutOfProcess`.
### 502.5 Process Failure ### 502.5 Process Failure
The worker process fails. The app doesn't start. The worker process fails. The app doesn't start.