Using nodemon doesn't recognize Electron package

Question

I'm trying to use the nodemon package in an Electron project but when I try to execute this with nodemon main.js I catch this error in terminal:

But when I try to execute simply with "npm electron ." this works properly. Why?

The code of main.js:

const { app, BrowserWindow } = require('electron');

let mainWindow;

createMainWindow = () => {
    mainWindow = new BrowserWindow({
        width: 1600, height: 900,
        webPreferences: {
            nodeIntegration: false
        }
    });

    mainWindow.loadFile('./renderer/index.html')

    //mainWindow.webContents.openDevTools();
}

app.whenReady().then(createMainWindow);

Answer 1

I've resolved it.
In package.json I changed the "start": "nodemon ./main.js" to "watch": "nodemon --exec electron ." and it worked.