[Spring] Error starting ApplicationContext. To display the condition evaluation report re-run your application with 'debug' enabled.

Problem

Error starting ApplicationContext. To display the condition evaluation report re-run your application with 'debug' enabled.
[2m2023-11-04T10:37:51.317+09:00[0;39m [31mERROR[0;39m [35m27805[0;39m [2m---[0;39m [2m[           main][0;39m [36mo.s.b.d.LoggingFailureAnalysisReporter  [0;39m [2m:[0;39m 

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APPLICATION FAILED TO START
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Description:

Web server failed to start. Port 8080 was already in use.

Action:

Identify and stop the process that's listening on port 8080 or configure this application to listen on another port.

Cuase

1. The error basically means that your port 8080 is occupied.
   1. 8080 포트 넘버가 이미 사용되고 있다. → 포트 넘버 Kill 해준다.

Solution

1. 어떤 프로세스가 port 8080 점유중인지 확인한다.

lsof -i :8080

2. 점유중인 PID 번호 확인한다.

3. 해당 명령어 입력하여 kill 해준다.

kill -9 <PID>