Remark : 서버 환경 ASPNETCORE_ENVIRONMENT 설정으로 오류 확인
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Swapping to Development environment will display more detailed information about the error that occurred.
The Development environment shouldn’t be enabled for deployed applications. It can result in displaying sensitive information from exceptions to end users. For local debugging, enable the Development environment by setting the ASPNETCORE_ENVIRONMENT environment variable to Development and restarting the app.