Web server failed to start. Port 8081 was already in use. 포트가 중복됐다고 실행되지 않을 때(mac)

mac

2022-02-16 16:34:18.854 ERROR 29791 --- [  restartedMain] o.s.b.d.LoggingFailureAnalysisReporter   : 

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APPLICATION FAILED TO START
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Description:

Web server failed to start. Port 8081 was already in use.

Action:

Identify and stop the process that's listening on port 8081 or configure this application to listen on another port.


Process finished with exit code 0

sudo lsof -i :포트번호

sudo kill -9 pid번호

 

<예>

sudo lsof -i :8081

sudo kill -9 12345