exception error importing into active directory help!

I'm running a script to import user infor from csv into active directory, I'm not sure why i'm getting this error:

Get-ADUser : The search filter cannot be recognized
At C:\addupdateadusers.ps1:80 char:28
+         if($user=Get-AdUser <<<<  -filter {sAMAccountName -eq $name})
    + CategoryInfo          : NotSpecified: (:) [Get-ADUser], ADException
    + FullyQualifiedErrorId : The search filter cannot be recognized,Microsoft.ActiveDirectory.Management.Commands.GetADUser

does it mean that the saMAccountName in my csv does not match any in active directory ?any help would be appreciated?