The Remote Desktop license server "%1" does not have any Remote Desktop Services client access licenses (RDS CALs) installed ...

The Remote Desktop license server "%1" does not have any Remote Desktop Services client access licenses (RDS CALs) installed and registered with the Microsoft Clearinghouse for product "%2". Therefore, the Remote Desktop license server cannot issue RDS CALs of the type "%2" to the Remote Desktop Session Host server "%3". To resolve this problem, install additional RDS CALs as required.