The Active Directory Schema is not up-to-date and Ldifde.exe is not installed on this computer. You must install Ldifde.exe ...

The Active Directory Schema is not up-to-date and Ldifde.exe is not installed on this computer. You must install Ldifde.exe by opening Windows Powershell, running 'Import-Module ServerManager', then running 'Add-WindowsFeature RSAT-ADDS'. Alternately you can restart setup on a domain controller.