Kubuntu: Error on Automatically connect to VPN when using this connection

Problem

I want my VPN connection to automatically become active when my network wired connection gets activated. But the network manager stays "Waiting for secondary connection".

When I manually try to activate the OpenVPN connection, it also stays waiting and in /var/log/syslog I can see this message:

reason="The VPN service 'org.freedesktop.NetworkManager.openvpn' was not installed."

Environment

• Kubuntu-17.04

Solution

sudo apt-get install network-manager-openvpn

See:

KDE 4.5.2 How to activate VPN connection • KDE Community Forums

Forum question with solution