Add-PSSnapin "microsoft.sharepoint.powershell"
#Connect to the Metadata Service
$taxSite = get-SPSite "CentralAdminURL"    # Central Admin URL   
$taxonomySession = Get-SPTaxonomySession -site $taxSite
$termStore = $taxonomySession.TermStores["MetadataServiceName"] # Meta data service name
#Create a group
$termGroup = $termstore.CreateGroup("NewTermGroup") # New group 

#Connect to existing term group
$termGroup = $termstore.groups["NewTermGroup"];

#Create a term set
$termSet = $termGroup.CreateTermSet(“Skills”)

#Connect to existing term set
$termset = $TermGroup.Termsets["Skills"]

#Adding a default term to term set
$term = $termSet.CreateTerm("Sea wall",1033)
$term.SetDescription(“Sea wall”, 1033)
$term.CreateLabel("Seawall”, 1033, $false)

$TermSet.IsOpenForTermCreation = $true;

# Contribute permission on term group (This statement raising error)
$user = "c:0(.s|true"

# Contribute permission on term group   (This statement raising error)



Exception calling "AddContributor" with "1" argument(s): "The user name 'ec\everyone' can not be found. Parameter name: principalName" At line:11 char:1 + $termGroup.AddContributor("Domain\everyone") + ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + CategoryInfo : NotSpecified: (:) [], MethodInvocationException + FullyQualifiedErrorId : ArgumentException

  • Is this 2010 or 2013? What type of authentication do you use? The "Everyone" loginname differs depending on those two factors Commented Jun 18, 2014 at 9:20
  • We are using windows authentication.Requirement is by using custom user profile property every user can add a term to term set.
    – Ganesha
    Commented Jun 19, 2014 at 5:25
  • Is it 2010 or 2013? Commented Jun 19, 2014 at 5:33
  • yes it is in 2013.
    – Ganesha
    Commented Jun 19, 2014 at 5:53
  • 1
    So it is claim to windows you are using? The way we get the "Everyone" user in code is web.EnsureUser("c:0(.s|true"); where "c:0(.s|true" actually is the claims token for "All users" Commented Jun 19, 2014 at 6:03

2 Answers 2


The error is coming from the argument passed with AddContributor. The string to be passed should be the login name of a user, not a path. Cycle through the actual users of your site, and add each user individually to the term group.

Here are some references to take a look at to understand it better.




The second one that raises error can be solved by removing the escape character: "\", because it causes an error in PowerShell. So here is the working code:


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