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)：
module not found
対処
関連リンク
Module not found: Error: Can't resolve 'aws-sdk' ・ Issue #335 ・ Kitt-AI ...
https://github.com/Kitt-AI/snowboy/issues/335
Module not found: Error: Can't resolve 'aws-sdk' when importing ...
https://github.com/webpack/webpack/issues/8400
Module not found: Error: Can't resolve 'aws-sdk' - GitHub
https://github.com/tessel/node-usb/issues/215
webpackで「Module not found: Error: Can't resolve 'fs'」が出たときの ...
https://tomokazu-kozuma.com/what-to-do-when-module-not-found-error-can-not-resolve-fs-comes-out-in-w・・・
webpackでModule not found: Error: Cannot resolve module 'react'と叱 ...
http://otiai10.hatenablog.com/entry/2016/05/05/010121
Module not found: Error: Can't resolve 'crypto' - Stack Overflow
https://stackoverflow.com/questions/54162297/module-not-found-error-cant-resolve-crypto
serverless build webpack config failing to resolve modules for aws ...
https://stackoverflow.com/questions/50294527/serverless-build-webpack-config-failing-to-resolve-modu・・・
nodejsのAWS Lambda functionをビルド/アップロードするシェルスクリプト ...
https://qiita.com/suhirotaka/items/a6762b4e55fc13b40a6e
Serverless+TypeScript+Github Projectsを使ったToDoリスト通知サービス ...
https://qiita.com/takehilo/items/75cb2106e36d821f7de8
Use aws-sdk with Webpack - JavaScript Stuff
https://www.javascriptstuff.com/aws-sdk-with-webpack/