このエラーメッセージに関する原因と対処に関して説明します。
エラーメッセージ(英語)：
if file does not exist
対処
関連リンク
Node.js check if file exists - Stack Overflowstackoverflow.com/questions/.../node-js-check-if-file-ex...
https://stackoverflow.com/questions/17699599/node-js-check-if-file-exists
How do I tell if a regular file does not exist in Bash? - Stack ...stackoverflow.com/.../how-do-i-tell-if-a-regular-file-do...
https://stackoverflow.com/questions/638975/how-do-i-tell-if-a-regular-file-does-not-exist-in-bash?rq・・・
Storage.get('file') should throw an error if file does not exist ...github.com/aws-amplify/amplify-js/issues/1145
https://github.com/aws-amplify/amplify-js/issues/1145