Test-Path返回true，但Remove-Item找不到路徑

我正在PowerShell中創建一個腳本，該腳本應該查找用戶的UPM文件夾並將其附加到.old（以便於配置文件重建）。Test-Path返回true，但Remove-Item找不到路徑

下面的代碼片段是我的代碼：

# Rename the UPM profile 
Exit-PSSession 
cd '\\SYLX-FS-01\D$\UPMProfiles' 
$UPMPath = "$target.upm" 
$UPMOld = "$target.upm.old" 
if (Test-Path $UPMPath -IsValid) { 
    if (Test-Path $UPMOld -IsValid) { 
     Remove-Item $UPMOld 
     Rename-Item $UPMPath -NewName $UPMOld 
     Write-Host "Renamed UPMProfile" 
    } else { 
     Rename-Item $UPMPath -NewName $UPMOld 
     Write-Host "Renamed UPMProfile" 
    } 
} else { 
    # Write-Host "UPM Profile not found, no action has been taken on the file server." 
    $UPM = "False" 
}

我每次運行這個它返回該文件找不到錯誤。

Remove-Item : Cannot find path '\\SYLX-FS-01\D$\UPMProfiles\bill.odwyer.upm.old' 
because it does not exist. 
At line:8 char:20 
+   Remove-Item <<<< $UPMOld 
    + CategoryInfo   : ObjectNotFound: (\\SYLX-FS-01...er.upm.old:String) [Remove-Item], ItemNotFoundException 
    + FullyQualifiedErrorId : PathNotFound,Microsoft.PowerShell.Commands.RemoveItemCommand

據我所知道的，它應該只去排隊8如果$UPMPath存在，如果沒有的話它應該只是跳到else。我錯過了什麼？

來源

2016-05-12 Bill O' Dwyer