SyntaxError: Unexpected token ... in serialport in node_modules

Question

I hav been trying to run the vue-electron app. But the following error comes.

  App threw an error during load
  C:\newFolder02\pos4-desktop\node_modules\@serialport\stream\lib\index.js:103
    const settings = { ...defaultSettings, ...options }
                       ^^^

  SyntaxError: Unexpected token ...
      at createScript (vm.js:74:10)
      at Object.runInThisContext (vm.js:116:10)
      at Module._compile (module.js:533:28)
      at Object.Module._extensions..js (module.js:580:10)
      at Module.load (module.js:503:32)
      at tryModuleLoad (module.js:466:12)
      at Function.Module._load (module.js:458:3)
      at Module.require (module.js:513:17)
      at require (internal/module.js:11:18)
      at Object.<anonymous> (C:\newFolder02\pos4-desktop\node_modules\serialport\lib\index.js:1:175)

The error comes from the following line.

const settings = { ...defaultSettings, ...options }

I use following tools

node 8.16.0
npm 6.4.1
electron 1.8.2

It doesn't work in Windows. But it works in Mac OS. Any idea..?

Your node environment doesn't support ES6 syntax which is supposed to be already included in node 8.16 — fodma1, Jan 30 '20 at 07:31
@fodma1 Yes. It is true. The development of the software started more than one years ago. Upgrading to the latest ones is the best solution. — bhanuka.w, Jan 30 '20 at 08:04

score 0 · Answer 1 · answered Jan 30 '20 at 08:55

I have found a solution. You can convert the ES6 code to original JavaScript code with Babel(https://babeljs.io/en/repl).

I converted the ES6 code to vanilla JavaScript through Babel. I ticked ENV PRESET in left sidebar. I set Electron to "1.8" and Node to "8.16". It worked well. Babel Screenshot

SyntaxError: Unexpected token ... in serialport in node_modules

1 Answers1