Getting "Error: ENOENT: no such file or directory" when running "npm run uglify" task

Question

I could produce the correct output all the way till this uglify task. Then I got this error below:

PS H:\TeamTreeHouse\Full Stack JavaScript\Using npm as a Task Runner\DiceSimulator2015> npm run uglify

> dice_simulator_2015@1.0.0 uglify H:\TeamTreeHouse\Full Stack JavaScript\Using npm as a Task Runner\DiceSimulator2015
> uglifyjs src/models/* src/frontend.js -m -c -o build/app.js

fs.js:646
  return binding.open(pathModule._makeLong(path), stringToFlags(flags), mode);
                 ^

Error: ENOENT: no such file or directory, open 'H:\TeamTreeHouse\Full Stack JavaScript\Using npm as a Task Runner\DiceSimulator2015\build\app.js'
    at Object.fs.openSync (fs.js:646:18)
    at Object.fs.writeFileSync (fs.js:1299:33)
    at done (H:\TeamTreeHouse\Full Stack JavaScript\Using npm as a Task Runner\DiceSimulator2015\node_modules\uglify-js\bin\uglifyjs:527:16)
    at cb (H:\TeamTreeHouse\Full Stack JavaScript\Using npm as a Task Runner\DiceSimulator2015\node_modules\uglify-js\bin\uglifyjs:324:39)
    at H:\TeamTreeHouse\Full Stack JavaScript\Using npm as a Task Runner\DiceSimulator2015\node_modules\uglify-js\bin\uglifyjs:391:9
    at FSReqWrap.readFileAfterClose [as oncomplete] (fs.js:511:3)
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! dice_simulator_2015@1.0.0 uglify: `uglifyjs src/models/* src/frontend.js -m -c -o build/app.js`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the dice_simulator_2015@1.0.0 uglify script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR!     C:\Users\taobo33\AppData\Roaming\npm-cache\_logs\2018-05-23T18_13_32_735Z-debug.log
PS H:\TeamTreeHouse\Full Stack JavaScript\Using npm as a Task Runner\DiceSimulator2015>

I have no idea what went wrong...my package.jason are as below:

{
  "name": "dice_simulator_2015",
  "version": "1.0.0",
  "description": "",
  "scripts": {
    "test": "mocha",
    "uglify": "uglifyjs src/models/* src/frontend.js -m -c -o build/app.js"
  },
  "author": "Andrew Chalkley",
  "license": "MIT",
  "devDependencies": {
    "mocha": "^2.2.5",
    "uglify-js": "^2.4.23"
  }
}

all the other files are in the right place and I can run "npm test" fine before this step. I've compared the typing more than twice to make sure it's not a typo. Some help would be appreciated here @@.

(PS. I ran npm command from Windows Power Shell as Admin)

Answer 1 · 2018-05-23T18:53:05Z

May 23, 2018 6:53pm

What is the last command what you use? You installed the "npm i uglify-js"?

Answer 2 · 2018-05-24T06:55:04Z

May 24, 2018 6:55am

Hi Adam Beer thanks for the advise :) Yes I have uglify-js successfully installed. After watching the video for another time I suddenly realized that this is me making a silly mistake... I choose to practice on my local machine, however I didn't create a build folder like the work-space had in the first place. That's why I get the following prompt.

Error: ENOENT: no such file or directory, open 'H:\TeamTreeHouse\Full Stack JavaScript\Using npm as a Task Runner\DiceSimulator2015\build\app.js'

Now it's working properly after the directory to copy to has been created :) Thanks again!

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Bozhong Tao

Bozhong Tao

Getting "Error: ENOENT: no such file or directory" when running "npm run uglify" task

2 Answers

Adam Beer

Adam Beer

Bozhong Tao

Bozhong Tao