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SSL_connect returned=1 errno=0 state=error: certificate verify failed

Posted at

発生した問題

突然以下のエラーが発生しました。

SSL_connect returned=1 errno=0 state=error: certificate verify failed

原因

SlackのAPIを実行する時に発生していた。
ググるとrubyで使用しているopensslライブラリの証明書の有効期限が切れてしまったことが原因?
参考:SSL_connect returned=1 errno=0 state=error: certificate verify failed というエラーが発生した際の対応

対応

参考記事の通りコマンドを実行して対応。その後エラーは発生しなくなりました。

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