I am using Appium version V1.15.0 and have already start the server successfully with the default Host: 0.0.0.0 and Port: 4723
But now when i try to start the server it shows me this error "Error Starting Appium server: listen EADDRINUSE 0.0.0.0:4723"
I have tried to solve this issue by changing the port but could not find any solution.
Suggest me if you guys have any better solution.
If EADDRINUSE, Address already in use is the issue, 
do
ps aux | grep node
to get the process ids.
Then:
kill -9 PID
Doing the -9 on kill sends a SIGKILL.
Could not start Appium server. It's showing [Error Starting appium server: listen EADDRINUSE 0.0.0.0:4723]