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Powershell Question/ issue

I am getting this error when using the following script:

GC "C:\Users.txt" |%{Add-MailboxPermission 'mailbox' -user $_ -AccessRights FullAccess}

the Users.txt is just a list of email addresses or logon names. The script works, but I still get these errors. Any thoughts?

Cannot process argument transformation on parameter 'User'. Cannot convert value "" to type "Microsoft.Exchange.Configuration.Tasks.SecurityPrincipalIdParameter". Error: "Parameter values of type Microsoft.Exchange.Configuration.Tasks.SecurityPrincipalIdParameter can't be empty. Specify a value, and try again.
Parameter name: identity"
+ CategoryInfo : InvalidData: (:) [Add-ADPermission], ParameterBindin...mationException
+ FullyQualifiedErrorId : ParameterArgumentTransformationError,Add-ADPermission

SubSun

Script looks ok.. check your input file and make sure you don't have any empty lines.. Or try...

GC "C:\Users.txt" |%{
	If ($_ -ne $null){
	Add-MailboxPermission 'mailbox' -user $_ -AccessRights FullAccess
	}
}

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If $_ -ne $null not working then, try $_ -ne ""

Anthony K O365

ASKER

When you say 'empty lines' what do you mean? Here is the actual input path:

"C:\Users\ktookes\Desktop\Kens Share\Exchange Powershell Cmd\Users.txt" |%{Add-MailboxPermission Mailbox -user $_ -AccessRights FullAccess}

Again, the script works. I will also try your scrip block and get back...

thanks!

Anthony K O365

ASKER

I just tried the script block provided and same error.

SubSun

Replace

If ($_ -ne $null)

with

If ($_.trim() -eq "")

Anthony K O365

ASKER

Actually, after inserting this statement the errors go away! Thanks!

If $_ -ne $null not working then, try $_ -ne ""

Anthony K O365

ASKER

I've requested that this question be closed as follows:

Accepted answer: 0 points for ktookes's comment #a39600495

for the following reason:

There may be an issue with Powershell. However, the null statement worked for me. Thanks for the expertise!

ASKER CERTIFIED SOLUTION

SubSun

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Anthony K O365

ASKER

Sorry! I thought I accepted the experts comments. I will correct.

Anthony K O365

ASKER

Thanks for the input. I'll keep this in mind.