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NVM for Windows利用時にNode.jsバージョン変更後「npm ERR! Unexpected token '.'」が出るとき

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経緯

NVM for Windows 1.1.7を利用中、Node.jsのバージョンを14系から16系に上げた際、

npm ERR! Unexpected token '.'

が出てビルドできなくなってしまう事象が発生。

対応

NOTICE: If you downloaded this version before Dec 15, 2021 and are affected by issue #706, please re-download. This fix was not present in the initial binary and has since been corrected.
https://github.com/coreybutler/nvm-windows/releases/tag/1.1.9

https://github.com/npm/cli/issues/4234#issuecomment-1080927985
のコメントを参考に、

  1. まずNVM for Windowsを、「1.1.9」までバージョンアップ
  2. nvm uninstall v16.14.2 (管理者権限プロンプトで/エラーが出てしまったバージョンを一回消す)
  3. nvm install v16.14.2 (指定バージョンを入れなおす)
  4. nvm use v16.14.2

といった形で入れ直してから、npmのビルドをかけると解消された模様。

NVMのバージョンアップ後に、使いたいバージョンのNode.jsを入れるのが良さげです。

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