Relevant Products: Signature Manager Exchange Edition
Scenario
You observe the following error in the Event Log:
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Error: The file name is empty or contains only whitespace. Parameter name: fileName Information: System.ArgumentException: The file name is empty or contains only whitespace. Parameter name: fileName
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Cause
This error is displayed when the number of temp files reaches a given number - e.g. ~65K.
There are a number of reasons why this can happen but generally, temp files simply tend to build up over time.
Resolution
Temp files used by Signature Manager Exchange Edition adopt the naming convention of: tmpXXXX.tmp. To resolve the error, delete these files from the following locations:
- C:\Windows\Temp
- C:\Windows\ServiceProfiles\NetworkService\AppData\Local\Temp
You may also find these temp files in your own %temp% directory.
Having deleted the files, access the Exclaimer console, make any minor change to the configuration and save changes - the error should not be shown in the event log.