maven clean 할 때 에러 나오는데요 ㅠㅜ

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원인을 모르겠습니다 ㅠㅜ 실수로 maven update porject 한 뒤로 프로젝트가 엉망이 되어버린거 같아서 처음부터 하는데요. maven에서 clean 한다음 install 할려는데 clean 할 때 다음처럼 에러가 뜹니다 ㅠㅜ [ERROR] Plugin org.apache.maven.plugins:maven-clean-plugin:2.5 or one of its dependencies could not be resolved: Failed to read artifact descriptor for org.apache.maven.plugins:maven-clean-plugin:jar:2.5: Could not transfer artifact org.apache.maven.plugins:maven-clean-plugin:pom:2.5 from/to central (https://repo.maven.apache.org/maven2): Received fatal alert: protocol_version -> [Help 1][ERROR] [ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.[ERROR] Re-run Maven using the -X switch to enable full debug logging.[ERROR] [ERROR] For more information about the errors and possible solutions, please read the following articles:[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/PluginResolutionException 원인이 뭘까요?? 도와주세요.

maven clean 할 때 에러 나오는데요 ㅠㅜ

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