My issue is similar to another posted here on the site but still happening(Office 365 pre-provision my site issue with Powershell). I've tried to run this on 3 different machines and 1 works, the other two don't.

The following assemblies are installed and loaded on all 3 machines with the same version:

SharePoint Client Components: 16.0.4002.1211
MS Online Services Sign-In Assistant: 7.250.4556.0
Azure AD Module for Windows: 1.0.0 **(I don't think this one is needed)**

On one machine (my laptop), I get an error on the line:

$loader =[Microsoft.SharePoint.Client.UserProfiles.ProfileLoader]::GetProfileLoader($ctx)

ERROR:

Cannot convert argument "context", with value: "Microsoft.SharePoint.Client.ClientContext", for "GetProfileLoader" to type "Microsoft.SharePoint.Client.ClientRuntimeContext": "Cannot convert the "Microsoft.SharePoint.Client.ClientContext" value of type "Microsoft.SharePoint.Client.ClientContext" to type "Microsoft.SharePoint.Client.ClientRuntimeContext"."

On the other machine (2013 SP WFE), the error is on line:

$loader.CreatePersonalSiteEnqueueBulk(@("$user$Domain")) 

Error:

One Drive Not Provisioned Method invocation failed because [Microsoft.SharePoint.Client.UserProfiles.ProfileLoader] does not contain a method named 'CreatePersonalSiteEnqueueBulk'.

I know I'm missing an assembly, reference, version or something but I can't figure out what it is.

cls
$Domain = "@mydomain.com"

Write-Host "Load SharePoint and One Drive Assemblies" -ForegroundColor Yellow
$loadInfo1 = [System.Reflection.Assembly]::LoadWithPartialName("Microsoft.SharePoint.Client")
$loadInfo2 = [System.Reflection.Assembly]::LoadWithPartialName("Microsoft.SharePoint.Client.Runtime")

#Must be SharePoint Administrator URL
$webUrl = "https://SiteDomain-admin.sharepoint.com"
$ctx = New-Object Microsoft.SharePoint.Client.ClientContext($webUrl)

Write-Host "Create Connection To Administration Site" -ForegroundColor Yellow   
$web = $ctx.Web
$username = "[email protected]"
$password = ConvertTo-SecureString '*************' -AsPlainText -Force

$ctx.Credentials = New-Object Microsoft.SharePoint.Client.SharePointOnlineCredentials($username,$password )

Write-Host "Load website into cache" -ForegroundColor Yellow
$ctx.Load($web)
$ctx.ExecuteQuery()

$loader =[Microsoft.SharePoint.Client.UserProfiles.ProfileLoader]::GetProfileLoader($ctx)

#To get the profile
$profile = $loader.GetUserProfile()
$ctx.Load($profile)
$ctx.ExecuteQuery()
#$profile 

Write-Host "Loading User Array" -ForegroundColor Yellow
$UserArray = "User1", "User2", "User3","User4"
Foreach ($user in $UserArray)
{
    try{
        #To queue up the profile
        $loader.CreatePersonalSiteEnqueueBulk(@("$user$Domain")) 
        $loader.Context.ExecuteQuery()
        Write-Host "$user One Drive Provisioned" -ForegroundColor Cyan
    }catch{
        Write-Host "$user One Drive Not Provisioned" $_.Exception.Message -ForegroundColor Red
    }
}
Write-Host "COMPLETED"  -ForegroundColor Green