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Empty folder size value should be set to zero #14449
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Issue-Enhancementthe issue is more of a feature request than a bugthe issue is more of a feature request than a bugResolution-No ActivityIssue has had no activity for 6 months or moreIssue has had no activity for 6 months or moreUp-for-GrabsUp-for-grabs issues are not high priorities, and may be opportunities for external contributorsUp-for-grabs issues are not high priorities, and may be opportunities for external contributorsWG-Cmdlets-Utilitycmdlets in the Microsoft.PowerShell.Utility modulecmdlets in the Microsoft.PowerShell.Utility module
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Issue-Enhancementthe issue is more of a feature request than a bugthe issue is more of a feature request than a bugResolution-No ActivityIssue has had no activity for 6 months or moreIssue has had no activity for 6 months or moreUp-for-GrabsUp-for-grabs issues are not high priorities, and may be opportunities for external contributorsUp-for-grabs issues are not high priorities, and may be opportunities for external contributorsWG-Cmdlets-Utilitycmdlets in the Microsoft.PowerShell.Utility modulecmdlets in the Microsoft.PowerShell.Utility module
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Steps to reproduce
We use the following instruction to calculate a folder size
gci c:\my_folder | measure Length -sum
However, if the folder is empty, this instruction returns an error. This happens in PowerShell 5 to PowerShell 7 (Win 10 to Windows Server 2016 to 2019). The error message is:
Measure-Object: Cannot process argument because the value of argument “Property” is not valid. Change the value of the “Property” argument and run the operation again.
Expected behavior
Returns 0. No error. Especially, no red error message on the screen.
Actual behavior
Big RED error message on the screen. Even though 0 is returned, but the error message is annoying.
Environment data
c:\my_folder is an empty folder
My opinion
Measure-Object’s behaviour is correct. So the culprit is the folder object returned by PowerShell. The size property of the folder object should be set to zero by default.
Of course, if other changes in PowerShell's internal working could lead to the disappearance of the error message, I'm happy with that too.