null valued error in powershell scripting

Question

Im trying to create a userprofile section but when i run the code Im gettiong the following error you cannot cal a method on a null valued expression.please help me out thanks in advance.

[System.Reflection.Assembly]::LoadWithPartialName("Microsoft.Sharepoint")
[System.Reflection.Assembly]::LoadWithPartialName("Microsoft.Office.Server.UserProfiles")
[xml]$xmlData = Get-Content "C:\xmlsample.xml"
function CreateUserProfileSection()
{     
      $SiteUrl = "url" 
      $site = Get-SPSite $xmlData.UserProfileSection.SiteURL
      $context = Get-SPServiceContext ($site)
      $upcm = New-Object Microsoft.Office.Server.UserProfiles.UserProfileConfigManager($context);      
      $ppm = $upcm.ProfilePropertyManager
      $cpm = $ppm.GetCoreProperties()
      $ptpm = $ppm.GetProfileTypeProperties([Microsoft.Office.Server.UserProfiles.ProfileType]::User)
      $psm = [Microsoft.Office.Server.UserProfiles.ProfileSubTypeManager]::Get($context)
      $ps = $psm.GetProfileSubtype([Microsoft.Office.Server.UserProfiles.ProfileSubtypeManager]::GetDefaultProfileName([Microsoft.Office.Server.UserProfiles.ProfileType]::User))

      $pspm = $ps.Properties
      $xmlData.UserProfileSection.Section | ForEach-Object{
          $property = $pspm.GetSectionByName($_.Name)             
            if($property -eq $null)
            {
                $Privacy=$_.Privacy
                  $PrivacyPolicy=$_.PrivacyPolicy
                $coreProp = $cpm.Create($true)
                $coreProp.Name = $_.Name
                $coreProp.DisplayName = $_.DisplayName
                $cpm.Add($coreProp)
                  write-host -f green $_.Name section is created successfully             
            }
            else
            {
               write-host -f yellow $_.Name section already exists
            }
      }
}
CreateUserProfileSection 

Answer 1

Make sure you're provided the user running the code with Full Control to the UPA as well as Administrative access to the UPA. You can do this by highlighting the UPA in the Service Applications, then clicking on Permission and Administrators in the ribbon control.

Answer 2

What IDE are you using for your powershell? And do you know you can trap the actuall error See this http://huddledmasses.org/trap-exception-in-powershell/ Cheers Patrick