identify and stop on port 7081 or configure this application to listen on another port.

how to correct this error.

CodePudding user response：

Change your program to bind on a different port or kill the existing process running on that port.

Run lsof -i :7081 This will display details of process that is listening on port 7081.
copy the process ID 
Run kill -9 <ProcessID> example kill -9 321321