多文件上传错误无法在Phil Childs的空值表达式PowerShell脚本上调用方法

Question

我正在使用这个脚本 http://get-spscripts.com/2010/10/bulk-upload-files-with-metadata-into.html 脚本

                function Copy-FilestoSP
            {
                Param (
                       [parameter(Mandatory=$true)][string]$LocalPath, 
                       [parameter(Mandatory=$true)][string]$SiteUrl, 
                       [parameter(Mandatory=$true)][string]$Library, 
                       [parameter(Mandatory=$false)][string]$LibraryStartFolder, 
                       [parameter(Mandatory=$false)][string]$ManifestFilePath, 
                       [parameter(Mandatory=$false)][switch]$IncludeSubFolders,
                       [parameter(Mandatory=$false)][switch]$Approve,
                       [parameter(Mandatory=$false)][switch]$CheckIn,
                       [parameter(Mandatory=$false)][switch]$Overwrite,
                       [parameter(Mandatory=$false)][switch]$FlattenStructure
                       )

                try
                {

                #Get web and document library objects
                $web = Get-SPWeb $SiteUrl
                $docLibrary = $web.Lists[$Library]
                ---code skipped-----

当我调试时，我发现在Get-SPWeb之后我得到了

                You cannot call a method on a null-valued expression.
            At E:\BH\utility\Get-SPScripts.Copy-FilesToSP.ps1:331 char:21
            +         $web.Dispose <<<< ()
                + CategoryInfo          : InvalidOperation: (Dispose:String) [], RuntimeException
                + FullyQualifiedErrorId : InvokeMethodOnNull

在331的$ web.Dispose（）

        catch [System.SystemException]
            { 
                write-host "The script has stopped because there has been an error.  "$_.Message
            }
            finally
            {
                $web.Dispose()
            }
            }
            write-host "SharePoint 2010 Multiple File Upload Script - Get-SPScripts.com"

我正在执行它

Copy-FilestoSP -LocalPath "E:\files" -SiteUrl "http://sp2010" -Library "myDocuments"