System.ServiceModel.Activation.WebHostServiceCloseFailed
Occurs when a service cannot be closed gracefully and is aborted.
Description
This error code only appears in the log file. It usually indicates a programming error, e.g., when you try to close a service after Abort has already been called.
Troubleshooting
Check the application source code.
See Also
Concepts
Using Tracing to Troubleshoot Your Application
WCF Administration and Diagnostics