Getting Error while running Powershell Script to add Site Content Link - powershell

Question

$adminUPN="xxxxx#Home500.onmicrosoft.com"
$orgName="xxxxxx"
$userCredential = Get-Credential -UserName $adminUPN -Message "Type the password."
Connect-SPOService -Url https://$orgName-admin.sharepoint.com -Credential $userCredential
# Begin the process
$loadInfo1 = [System.Reflection.Assembly]::LoadWithPartialName("Microsoft.SharePoint.Client")
$loadInfo2 = [System.Reflection.Assembly]::LoadWithPartialName("Microsoft.SharePoint.Client.Runtime")
$loadInfo3 = [System.Reflection.Assembly]::LoadWithPartialName("Microsoft.SharePoint.Client.UserProfiles")
#Add SharePoint PowerShell SnapIn if not already added
$snapin = Get-PSSnapin | Where-Object {$_.Name -eq 'Microsoft.SharePoint.Powershell'}
if ($snapin -eq $null)
{
Write-Host "Loading SharePoint Powershell Snapin"
Add-PSSnapin "Microsoft.SharePoint.Powershell" -EA SilentlyContinue
}
CLS
$StartTime = $(get-date -f F)
$timeStamp = Get-Date -format "MM_dd_yy_hh_mm"
#Get Current folder file path
$invocation = (Get-Variable MyInvocation).Value
$currentPath = Split-Path $invocation.MyCommand.Path
$currentPath = $currentPath + "\"
#Config File Path
#$configPath = $currentPath + "Config.xml"
$configPath = "C:\Users\EMXBG\Downloads\Script_AddSiteContent\Script_AddSiteContent\Config.xml"
#fetching details from config.xml
[xml]$configXML = Get-Content $configPath
$inputFileName = [string]$configXML.Config.Constants.InputFileName
$errorFileName = [string]$configXML.Config.Constants.ErrorFileName
$outFilePath = [string]$configXML.Config.Constants.OutputFileName
#Source File path containing list of WebApplications in a farm.
$webApplFilePath = $currentPath + $inputFileName
#Output File path of the exported AD Security Groups with Site collection and Group Name details.
$sitesFilePath = $currentPath + $outFilePath
#File path of the file which will capture all the errors while running the script.
$errorPath = $currentPath + $errorFileName + $timeStamp + ".csv"
# Creating object to write logging into the error and output file
$sitesFile = New-Object System.IO.StreamWriter $sitesFilePath
$errorfile = New-Object System.IO.StreamWriter $errorPath
# Fetching SharePoint WebApplications list from a CSV file
$CSVData = Import-CSV -path $webApplFilePath
$sitesFile.WriteLine("SiteCollectionName"+","+"SiteURL")
$errorfile.WriteLine("SiteURL"+"`t"+"ExceptionLevel"+"`t"+"ExceptionMsg");
addSiteContentLink $CSVData
$sitesFile.Close()
$errorfile.Close()
# Function to add Site Content link in thes where it does not exists
function addSiteContentLink($CSVData)
{
try
{
$compareText = "Site contents"
foreach ($row in $CSVData)
{
$webUrl = $row.webUrl
#$username = $row.username
#$password = $row.password
#Get Web Application and credentials
#$securePass = ConvertTo-SecureString $password -AsPlainText -Force
#$ctx = New-Object Microsoft.SharePoint.Client.ClientContext($webUrl)
#$ctx.Credentials = New-Object Microsoft.SharePoint.Client.SharePointOnlineCredentials($username, $securePass)
# Get the collection of navigation nodes from the quick launch bar
#$web = $ctx.Web
$quickLaunch = $webUrl.Navigation.QuickLaunch
try
{
#Iterate through each iten in Quick launch menu
foreach($quickLaunch in $web)
{
if ($quickLaunch -contains $compareText)
{
Write-Host "Site Content link Exists!"
}
else
{
# Add a new navigation node
$navNode = New-Object Microsoft.SharePoint.Client.NavigationNodeCreationInformation
$navNode.AsLastNode = $true
$navNode.Title = "Site Contents"
$navNode.Url = $web.Url + "_layouts/15/viewlsts.aspx"
$navNode.IsExternal = $false
$ctx.Load($quickLaunchColl.Add($navNode))
$ctx.ExecuteQuery()
}
}
}
catch
{
Write-Host("Exception at Site Collection Url :" + $currentSite.Url)
$errorfile.WriteLine($currentSite.Url+"`t"+"`t"+$_.Exception.Message)
}
}
#Export Data to CSV
$sitesCollection | export-csv $sitesFile -notypeinformation
$site.Dispose()
}
catch
{
Write-Host("Exception at Site Collection Url :" +$currentSite.Url)
$errorfile.WriteLine($currentSite.Url+"`t"+"SiteCollection"+"`t"+$_.Exception.Message)
}
}
Below is the Error I am getting
Export-Csv : Cannot bind argument to parameter 'InputObject' because it is null.
At C:\Users\EMXBG\Downloads\Script_AddSiteContent\Script_AddSiteContent\ScriptForSiteContentLinkQuickLaunch - Copy.ps1:126 char:29
+ $sitesCollection | export-csv $sitesFile -notypeinformation
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : InvalidData: (:) [Export-Csv], ParameterBindingValidationException
+ FullyQualifiedErrorId : ParameterArgumentValidationErrorNullNotAllowed,Microsoft.PowerShell.Commands.ExportCsvCommand

Answer 1

This error is probably because $sitesCollection is empty/null. I can't see anything in your code that assigns it a value.