SdkClientException: Unable to find a region via the region provider chain 에러

Configuration and credential file settings

---

1. C:\Users\[사용자명]/.aws 구성

2. ~/.aws/config

[default]
region=ap-northeast-2
output=json

3.~/.aws/credentials

[default]
aws_access_key_id=[]
aws_secret_access_key=[]

참고

https://docs.aws.amazon.com/ko_kr/cli/latest/userguide/cli-configure-files.html
https://docs.aws.amazon.com/sdk-for-java/v1/developer-guide/java-dg-region-selection.html