Cannot read property 'once' of undefined

When start the project by express.

/Users/lxxyx/Desktop/own/yun-type/node_modules/electron-pdf/lib/index.js:32 electronApp.once(‘ready’, () => { ^

TypeError: Cannot read property ‘once’ of undefined at PDFExporter.start (/Users/lxxyx/Desktop/own/yun-type/node_modules/electron-pdf/lib/index.js:32:16) at Object.<anonymous> (/Users/lxxyx/Desktop/own/yun-type/js_server/app.js:22:10) at Module._compile (module.js:570:32) at Object.Module._extensions…js (module.js:579:10) at Module.load (module.js:487:32) at tryModuleLoad (module.js:446:12) at Function.Module._load (module.js:438:3) at Module.runMain (module.js:604:10) at run (bootstrap_node.js:394:7) at startup (bootstrap_node.js:149:9) at bootstrap_node.js:509:3

import * as express from 'express'
import * as bodyParser from 'body-parser'
const ElectronPDF = require('electron-pdf')

const app = express()
app.use(bodyParser.json())

const exporter = new ElectronPDF()

app.post('/pdfexport', (req, res) => {
    const source:string = req.body.source
    exporter.createJob(source, './')
    .then((job) => {
        job.render()
        job.on('job-complete', (r) => {
            console.log('pdf files:', r.results)
        })
    })
})

exporter.on('charged', () => {
    //Only start the express server once the exporter is ready
    app.listen(3000)
})

exporter.start()

[Lxxyx]

@codecounselor Thank you. I run it at Node but not electron.

[codecounselor]

Yes it runs on windows, but you have to run npm install from the target OS or you won’t get the right binaries