Powershell for SharePoint >> getting we!rd error - powershell

Question

I keep getting following error on this code:
#Setup default variables
$webUrl = Get-SPWeb -Identity "http://CiscoIntranet/sites/VOIP"
$list = $webUrl.GetList("http://CiscoIntranet/sites/VOIP/ForwardTech")
[System.Reflection.Assembly]::LoadWithPartialName(”Microsoft.SharePoint”)
function ProcessMove {
param($folderUrl)
$folder = $web.GetFolder($folderUrl)
foreach ($file in $folder.Files)
{
[Microsoft.SharePoint.SPFile]$spFile = $file;
$docset=$($file.Counterparty2);
$destinationFolderUrl = "http://CiscoIntranet/sites/VOIP/ForwardTech/" + $docset;
$spFile.MoveTo($destinationFolderUrl + $file.Name, $true);
$webUrl.Update();
}
}
#Move root Files
ProcessMove($list.RootFolder.Url)
You cannot call a method on a null-valued expression.
At C:\PS\MoveFiles.ps1:8 char:28
+ $folder = $web.GetFolder <<<< ($folderUrl)
+ CategoryInfo : InvalidOperation: (GetFolder:String) [], RuntimeException
+ FullyQualifiedErrorId : InvokeMethodOnNull
Method invocation failed because [Microsoft.SharePoint.SPListItemCollection] doesn't contain a method named 'MoveTo'.
At C:\PS\MoveFiles.ps1:13 char:23
+ $list.Items.MoveTo <<<< ($destinationFolderUrl + $file.Name, $true);
+ CategoryInfo : InvalidOperation: (MoveTo:String) [], RuntimeException
+ FullyQualifiedErrorId : MethodNotFound

Answer 1

This is the working code...
$siteURL="http://CiscoIntranet/sites/VOIP"
$docLib = "ForwardTech"
$site=Get-SPSite $siteURL
$web=$site.RootWeb
$collFiles=$web.GetFolder($docLib).Files
$count=$collFiles.Count
while($count -ne 0)
{
$item = $collFiles[$count-1].Item
$DocSet = $item["Region"]
Write-Host "$DocSet is the doc set. $collFiles[$count-1].Name is name"
$collFiles[$count-1].MoveTo($siteURL + "/" + $docLib + "/" + $DocSet + "/" + $collFiles[$count-1].Name, $true)
$count--
}