Create Folder in DocLib of a Teamsite - Office 365 - Sharepoint Online - powershell

Question

I want to create an example folder in a Document Library of a created Teamsite on Sharepoint Online using Powershell but am running into an error.
After I have created the Teamsite I use the following script:
#Retrieve list
$DocLibName = "Dokumente"
$FolderTitle = "Beispiel"
$List = $ctx.Web.Lists.GetByTitle($DocLibName)
$folder = $list.AddItem("", [Microsoft.SharePoint.SPFileSystemObjectType]::Folder)
$folder["Title"] = $FolderTitle
$folder.Update();
$ctx.Load($List)
$ctx.ExecuteQuery()
Error Message
The type [Microsoft.SharePoint.SPFileSystemObjectType] was not found : Make sure that the assembly that contains this type is loaded.
Line:79 Char:1
+ $ Folder = $ List.addItem ("" [Microsoft.SharePoint.SPFileSystemObjectType ] :: Folde ...
It is not possible to use an index to a null array.
Line:80 Char:1
+ $ Folder ["Title"] = $FolderTitle
It is not possible to call a method for an expression of the NULL .
Line:81 Char:1
+ $Folder.Update();
How can this be resolved?

Answer 1

You are getting this error since Microsoft.SharePoint.SPFileSystemObjectTypetype belongs to SharePoint Server Side API which is not compatible with Office 365.
Below is demonstrated how to create a folder in SharePoint Online site via PowerShell (utilizes SharePoint CSOM API)
Function Create-Folder()
{
Param(
[Parameter(Mandatory=$True)]
[Microsoft.SharePoint.Client.Folder]$ParentFolder,
[Parameter(Mandatory=$True)]
[String]$FolderName
)
$folder = $ParentFolder.Folders.Add($folderName)
$ParentFolder.Context.Load($folder)
$ParentFolder.Context.ExecuteQuery()
return $folder
}
Function Get-Context($Url,$Username,$Password){
$SecurePassword = $Password | ConvertTo-SecureString -AsPlainText -Force
$credentials = New-Object Microsoft.SharePoint.Client.SharePointOnlineCredentials($UserName, $SecurePassword)
$ctx = New-Object Microsoft.SharePoint.Client.ClientContext($url)
$ctx.Credentials = $credentials
return $ctx
}
Usage
$Url = "https://contoso.sharepoint.com/"
$UserName = "jdoe#contoso.onmicrosoft.com"
$Password = ""
$TargetFolderName = "Archive2016"
$ctx = Get-Context -Url $Url -Username $Username -Password $Password
$parentFolder = $ctx.Web.Lists.GetByTitle("Documents").RootFolder
$folder = Create-Folder -ParentFolder $parentFolder -FolderName $TargetFolderName
Write-Host "Folder [$TargetFolderName] has been created succesfully. Url: $($folder.ServerRelativeUrl)"
For creating a folder hierarchy the following script could be utilized:
Function Create-FolderHierarchy()
{
Param(
[Parameter(Mandatory=$True)]
[Microsoft.SharePoint.Client.Folder]$ParentFolder,
[Parameter(Mandatory=$True)]
[String]$FolderUrl
)
$folderNames = $FolderUrl.Trim().Split("/",[System.StringSplitOptions]::RemoveEmptyEntries)
$folderName = $folderNames[0]
$curFolder = $ParentFolder.Folders.Add($folderName)
$ParentFolder.Context.Load($curFolder)
$ParentFolder.Context.ExecuteQuery()
if ($folderNames.Length -gt 1)
{
$curFolderUrl = [System.String]::Join("/", $folderNames, 1, $folderNames.Length - 1)
return Create-FolderHierarchy -ParentFolder $curFolder -FolderUrl $curFolderUrl
}
return $curFolder
}
If you are interested in scenario for uploading files while preserving a folder structure, take a look at How to: Upload files into Office 365 via PowerShell post, it contains ready made script for that purpose.