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Electronのクイックスタートで 「 Unable to find Electron app at ...」と出てしまう

More than 3 years have passed since last update.

Electronを始めようと思い、例のごとく Hello World をしようと思ったところ
以下のようにクイックスタートしようとするとタイトルの通りのエラーがでて
アプリが動かない

$ electron プロジェクトのフォルダパス

原因は極めて簡単なことで、
npmのpackage.jsonの記述でした。

Hello World を表示させるプログラムのJSファイルを

main.js

にしていたのですが、package.jsonの中には

"main": "index.js",

との記述が...

これを以下のように修正

"main": "main.js",

これで動きました。

以上。

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