Cannot find an overload for "PeopleManager" and the argument count: "1".

Question

Every time getting following error
Cannot find an overload for “PeopleManager” and the argument count: “1”.
at following line
$people = New-Object Microsoft.SharePoint.Client.UserProfiles.PeopleManager($context)
I am referring userprofile dll from 16 hive...

Answer 1

Hi,
Can you provide the complete script in use for a further research? It would make others easier to find out the root cause of this issue.
Here is a working demo which works in my environment, you can take it for a try:
#Specify tenant admin and URL
$User = "[email protected]"
#Configure Site URL and User
$SiteURL = "https://tenant.sharepoint.com/sites/mysite"
#Add references to SharePoint client assemblies and authenticate to Office 365 site - required for CSOM
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"
Add-Type -Path "C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\16\ISAPI\Microsoft.SharePoint.Client.UserProfiles.dll"
$Password = Read-Host -Prompt "Please enter your password" -AsSecureString
$Creds = New-Object Microsoft.SharePoint.Client.SharePointOnlineCredentials($User,$Password)
#Bind to Site Collection
$Context = New-Object Microsoft.SharePoint.Client.ClientContext($SiteURL)
$Context.Credentials = $Creds
#Identify users in the Site Collection
$Users = $Context.Web.SiteUsers
$Context.Load($Users)
$Context.ExecuteQuery()
#Create People Manager object to retrieve profile data
$PeopleManager = New-Object Microsoft.SharePoint.Client.UserProfiles.PeopleManager($Context)
Foreach ($User in $Users)
$UserProfile = $PeopleManager.GetPropertiesFor($User.LoginName)
$Context.Load($UserProfile)
$Context.ExecuteQuery()
If ($UserProfile.Email -ne $null)
Write-Host "User:" $User.LoginName -ForegroundColor Green
$UserProfile.UserProfileProperties
Write-Host ""
Thanks 
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