플라스크 코드를 입력하면 아래와 같은 메시지가 뜹니다.

포트번호가 겹친다는거 같은데 이런경우 코드에 있는 포트번호를 임의로 변경해서 진행해도 상관없는건가요?

/Users/dw/Desktop/sparta/projects/prac/venv/bin/python /Users/dw/Desktop/sparta/projects/prac/app.py 

 * Serving Flask app 'app'

 * Debug mode: on

Address already in use

Port 5000 is in use by another program. Either identify and stop that program, or start the server with a different port.

On macOS, try disabling the 'AirPlay Receiver' service from System Preferences -> Sharing.