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npx createでエラー、UNABLE_TO_GET_ISSUER_CERT_LOCALLYの対処メモ

Last updated at Posted at 2024-08-17

問題

npx create-next-app@latest でプロジェクトが作成できない。
エラー文は以下。

npm error code UNABLE_TO_GET_ISSUER_CERT_LOCALLY
npm error errno UNABLE_TO_GET_ISSUER_CERT_LOCALLY
npm error request to https://registry.npmjs.org/create-next-app failed, reason: unable to get local issuer certificate

環境

macOS sonoma 14.6.1

解決策

実行したこと。

1. npm の registry 設定

npm -g config set registry https://registry.npmjs.org/

設定は初回のみでOK。
URLは http://registry.npmjs.org/ との情報もある。

2. npm の SSL証明書の検証を無効にする設定

npm -g config set strict-ssl false

3. 失敗した npx create を再試行

npx create-next-app@latest my-next-project
...
...
...

Success! Created my-next-project at...

プロジェクト作成が成功したことを確認できた。

4. 検証設定を元に戻す

npm の SSL証明書の検証を有効に設定。

npm -g config set strict-ssl true

5. 設定の確認

npm config list

参考サイト

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