Symptom:
An error is reported when the netplan apply command is run on ubuntu 18.04.
netplan: fatal error: cannot bind to port 2983, is another daemon running
Fault Locating
The netplan is a calendar service, not a command to restart the network.
Solution:
1. Uninstalling the NetPlan
2. sudo apt-get uninstall netplan
3. Installing netplan.io
4. sudo apt-get install netplan.io
