I run the usual command to start openvpn but since the upgrade to 2.4 it throws up an error message:
sudo openvpn /etc/openvpn/my_expressvpn_uk_-_london_udp1.ovpn
[sudo] password for phoenix:
Options error: Unrecognized option or missing or extra parameter(s) in /etc/openvpn/my_expressvpn_uk_-_london_udp1.ovpn:16: tls-remote (2.4.1)
Use --help for more information.
I have fixed it by downgrading to 2.3 but it is not a permanent fix.