vs2013 create mapping to new source location using powershell - powershell

Question

I have been trying to automate the local setup Visual Studio (2013) workspace. I have been able to make the connection to the source location using PowerShell, but I cannot get the local mapping to apply. If I manually map the source location, I can get the local mapping to apply with PowerShell. I have borrowed heavily from other Stack Overflow threads, but I cannot seam to find a way to map the TFS server and map the local paths to the workspace. Thanks!
clear host
[string]$TfsUrl = 'https://xxxx.visualstudio.com'
'.Client', '.VersionControl.Client', '.VersionControl.Common', '.WorkItemTracking.Client', '.Build.Client', '.Build.Common' |
ForEach-Object {
Add-Type -AssemblyName "Microsoft.TeamFoundation$_, Version=12.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a"
}
try
{
$uri = New-Object System.Uri -ArgumentList $TfsUrl
$credentialProvider = new-object Microsoft.TeamFoundation.Client.UICredentialsProvider
$collection = [Microsoft.TeamFoundation.Client.TfsTeamProjectCollectionFactory]::GetTeamProjectCollection($uri, $credentialProvider)
$collection.Authenticate()
if ($collection.HasAuthenticated)
{
Write-Host -ForegroundColor Green 'Connection to TFS Successful'
$tfs = '' | Select-Object Collection, VersionControlServer, WorkItemStore, BuildServer, IdentityManagementService
$tfs.Collection = $collection
$tfs
}
}
catch
{
Write-Host -ForegroundColor Red $_.Exception.Message
Write-Host
Write-Host -ForegroundColor Red 'Failed to connect to TFS'
}
$tfsServer = "https://xxxx.visualstudio.com"
$computerName = [system.environment]::machinename
$folderName = "C:\VSTS_WB\xxxx.DuckCreek";
$dir = 'C:\Program Files (x86)\Microsoft Visual Studio 12.0\Common7\IDE\'
Set-Alias tf "$dir\tf.exe"
new-item -itemtype directory -path $folderName -force
cd $folderName
tf workfold "$/xxxx.DuckCreek" $folderName /map
tf workfold "$/xxxx.DuckCreek/BR1/Policy/Source" "C:\Program Files\Duck Creek Technologies" /map
tf workfold "$/xxxx.DuckCreek/BR1/Policy/Source/Shared.x86" "C:\Program Files (x86)\Duck Creek Technologies" /map
tf workfold "$/xxxx.DuckCreek/BR1/Billing/Source" "C:\Program Files\Duck Creek Technologies Billing" /map