Uploading bulk files from local system to SharePoint online using PowerShell script throwing an error you cannot call null valued expression - powershell

Question

My requirement is to upload multiple files using PowerShell script to SharePoint online.
while uploading files to a folder in the SharePoint document library, it showing me this error.
I am extracting only file name before uploading and create a folder with that filename and want to upload the file in that particular folder using PowerShell script .
#Load SharePoint CSOM Assemblies
Add-Type -Path "C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\16\ISAPI\Microsoft.SharePoint.Client.dll"
Add-Type -Path "C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\16\ISAPI\Microsoft.SharePoint.Client.Runtime.dll"
### Variables for Processing
$WebUrl = "https://tanviteddu.sharepoint.com/sites/Powershell/"
$LibraryName ="Documents"
$ListURL="/sites/Powershell/Shared Documents/Reports"
$SourceFolder="C:\Hari Priya"
#Setup Credentials to connect
$Credentials = New-Object Microsoft.SharePoint.Client.SharePointOnlineCredentials($UserName,(ConvertTo-SecureString $Password -AsPlainText -Force))
#Set up the context
$Context = New-Object Microsoft.SharePoint.Client.ClientContext($WebUrl)
$Context.Credentials = $Credentials
#Get the Library
$Library = $Context.Web.Lists.GetByTitle($LibraryName)
#upload each file from the directory
Foreach ($File in (dir $SourceFolder -File))
{
$fn=(Split-path -Path $file -Leaf).Split(".")[0];
Try
{
#Set up the context
$Context = New-Object Microsoft.SharePoint.Client.ClientContext($SiteUrl)
$Context.Credentials = $credentials
#Get the List Root Folder
$ParentFolder=$Context.web.GetFolderByServerRelativeUrl($ListURL)
#sharepoint online powershell create folder
$Folder = $ParentFolder.Folders.Add($fn)
$ParentFolder.Context.ExecuteQuery()
Write-host "New Folder Created Successfully!" -ForegroundColor Green
}
catch
{
write-host "Error: $($_.Exception.Message)" -foregroundcolor Red
}
#Get the file from disk
$FileStream = ([System.IO.FileInfo] (Get-Item $File.FullName)).OpenRead()
$FinalUrl=$ListURL+"\"+$fn+"\"+$file
#Upload the File to SharePoint Library
$FileCreationInfo = New-Object
Microsoft.SharePoint.Client.FileCreationInformation
$FileCreationInfo.Overwrite = $true
$FileCreationInfo.ContentStream = $FileStream
$FileCreationInfo.URL = $File
$FileUploaded = $FinalUrl.RootFolder.Files.Add($FileCreationInfo)
#powershell to upload files to sharepoint online
$Context.Load($FileUploaded)
$Context.ExecuteQuery()
#Close file stream
$FileStream.Close()
write-host "File: $($File) has been uploaded!"
}
While uploading, it is showing the error as below:
You cannot call a method on a null-valued expression.
At line:26 char:5
+ $FileUploaded = $FinalUrl.RootFolder.Files.Add($FileCreationInfo)
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : InvalidOperation: (:) [], RuntimeExceptio
+ FullyQualifiedErrorId : InvokeMethodOnNull
Cannot find an overload for "Load" and the argument count: "1".
At line:28 char:5
+ $Context.Load($FileUploaded)
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : NotSpecified: (:) [], MethodException
+ FullyQualifiedErrorId : MethodCountCouldNotFindBest
Please help me out

Answer 1

The below is working code - upload files from local drive to SharePoint online using PowerShell CSOM:
#Load SharePoint CSOM Assemblies
#Add-Type -Path "C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\16\ISAPI\Microsoft.SharePoint.Client.dll"
#Add-Type -Path "C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\16\ISAPI\Microsoft.SharePoint.Client.Runtime.dll"
cls
$fileName = "File_Uploading_Report"
#'yyyyMMddhhmm yyyyMMdd
$enddate = (Get-Date).tostring("yyyyMMddhhmmss")
#$filename = $enddate + '_VMReport.doc'
$logFileName = $fileName +"_"+ $enddate+"_Log.txt"
$invocation = (Get-Variable MyInvocation).Value
$directoryPath = Split-Path $invocation.MyCommand.Path
$directoryPathForLog=$directoryPath+"\"+"LogFiles"
if(!(Test-Path -path $directoryPathForLog))
{
New-Item -ItemType directory -Path $directoryPathForLog
#Write-Host "Please Provide Proper Log Path" -ForegroundColor Red
}
#$logPath = $directoryPath + "\" + $logFileName
$logPath = $directoryPathForLog + "\" + $logFileName
$isLogFileCreated = $False
#DLL location
$directoryPathForDLL=$directoryPath+"\"+"Dependency Files"
if(!(Test-Path -path $directoryPathForDLL))
{
New-Item -ItemType directory -Path $directoryPathForDLL
#Write-Host "Please Provide Proper Log Path" -ForegroundColor Red
}
#DLL location
$clientDLL=$directoryPathForDLL+"\"+"Microsoft.SharePoint.Client.dll"
$clientDLLRuntime=$directoryPathForDLL+"\"+"Microsoft.SharePoint.Client.dll"
Add-Type -Path $clientDLL
Add-Type -Path $clientDLLRuntime
#Files to upload location
$directoryPathForFileToUploadLocation=$directoryPath+"\"+"Files To Upload"
if(!(Test-Path -path $directoryPathForFileToUploadLocation))
{
New-Item -ItemType directory -Path $directoryPathForFileToUploadLocation
#Write-Host "Please Provide Proper Log Path" -ForegroundColor Red
}
#Files to upload location ends here.
function Write-Log([string]$logMsg)
{
if(!$isLogFileCreated){
Write-Host "Creating Log File..."
if(!(Test-Path -path $directoryPath))
{
Write-Host "Please Provide Proper Log Path" -ForegroundColor Red
}
else
{
$script:isLogFileCreated = $True
Write-Host "Log File ($logFileName) Created..."
[string]$logMessage = [System.String]::Format("[$(Get-Date)] - {0}", $logMsg)
Add-Content -Path $logPath -Value $logMessage
}
}
else
{
[string]$logMessage = [System.String]::Format("[$(Get-Date)] - {0}", $logMsg)
Add-Content -Path $logPath -Value $logMessage
}
}
#The below function will upload the file from local directory to SharePoint Online library.
Function FileUploadToSPOnlineLibrary()
{
param
(
[Parameter(Mandatory=$true)] [string] $SPOSiteURL,
[Parameter(Mandatory=$true)] [string] $SourceFilePath,
[Parameter(Mandatory=$true)] [string] $File,
[Parameter(Mandatory=$true)] [string] $TargetLibrary,
[Parameter(Mandatory=$true)] [string] $UserName,
[Parameter(Mandatory=$true)] [string] $Password
)
Try
{
$securePassword= $Password | ConvertTo-SecureString -AsPlainText -Force
#Setup the Context
$ctx = New-Object Microsoft.SharePoint.Client.ClientContext($SPOSiteURL)
$ctx.Credentials = New-Object Microsoft.SharePoint.Client.SharePointOnlineCredentials($UserName, $securePassword)
$list = $ctx.Web.Lists.GetByTitle($TargetLibrary)
$ctx.Load($list)
$ctx.ExecuteQuery()
$tarGetFilePath=$siteURL+"/"+"$TargetLibrary"+"/"+$File
$fileOpenStream = New-Object IO.FileStream($SourceFilePath, [System.IO.FileMode]::Open)
$fileCreationInfo = New-Object Microsoft.SharePoint.Client.FileCreationInformation
$fileCreationInfo.Overwrite = $true
$fileCreationInfo.ContentStream = $fileOpenStream
$fileCreationInfo.URL = $File
$uploadFileInfo = $list.RootFolder.Files.Add($FileCreationInfo)
$ctx.Load($uploadFileInfo)
$ctx.ExecuteQuery()
Write-host -f Green "File '$SourceFilePath' has been uploaded to '$tarGetFilePath' successfully!"
}
Catch
{
$ErrorMessage = $_.Exception.Message +"in uploading File!: " +$tarGetFilePath
Write-Host $ErrorMessage -BackgroundColor Red
Write-Log $ErrorMessage
}
}
#Variables
$siteURL="https://globalsharepoint.sharepoint.com/sites/TestSite/"
$listName="TestDocumentLibrary"
$fromDate="2019-10-28"
$toDate="2019-11-09"
$filesFolderLoaction=$directoryPathForFileToUploadLocation;
$userName = "YourSPOAccount#YourTenantDomain.com"
$password = "YourPassWord"
$securePassword= $password | ConvertTo-SecureString -AsPlainText -Force
#Variables ends here.
$filesCollectionInSourceDirectory=Get-ChildItem $filesFolderLoaction -File
$uploadItemCount=1;
#Extract the each file item from the folder.
ForEach($oneFile in $filesCollectionInSourceDirectory)
{
try
{
FileUploadToSPOnlineLibrary -SPOSiteURL $siteURL -SourceFilePath $oneFile.FullName -File $oneFile -TargetLibrary $listName -UserName $UserName -Password $Password
$fileUploadingMessage=$uploadItemCount.ToString()+": "+$oneFile.Name;
Write-Host $fileUploadingMessage -BackgroundColor DarkGreen
Write-Log $fileUploadingMessage
$uploadItemCount++
}
catch
{
$ErrorMessage = $_.Exception.Message +"in: " +$oneFile.Name
Write-Host $ErrorMessage -BackgroundColor Red
Write-Log $ErrorMessage
}
}
Write-Host "========================================================================"
Write-Host "Total number of files uploaded: " $filesCollectionInSourceDirectory.Count
Write-Host "========================================================================"
Reference URL:
https://global-sharepoint.com/powershell/upload-files-to-sharepoint-online-document-library-using-powershell-csom/