missing script: build - firebase deploy

Question

When I deployed my firebase function project, this error appeared "missing script:build" and I try to fix it but it fails. Please help me

This is error screenshot

If you package.json doesn't define a script action for `build`, that will happen. — Doug Stevenson, Aug 09 '18 at 07:20
Already not defined.How do I define a script action for build? @DougStevenson — Hassan Salah, Aug 09 '18 at 07:22

score 13 · Answer 1 · edited Jun 18 '23 at 18:29

13

Remove the "predeploy" from firebase.json

{
  "functions": {
    "predeploy": "npm --prefix functions run build",
    "source": "functions"
  }
}

edited Jun 18 '23 at 18:29

Evorlor

7,263
17
70
141

answered Aug 10 '18 at 00:57

user3338763

151
4

score 2 · Answer 2 · edited Nov 16 '20 at 00:52

For me, it worked when I added this:

"build": "",
{
  "name": "functions",
  "description": "Cloud Functions for Firebase",
  "scripts": {
    "lint": "eslint .",
    "build": "",
    "serve": "firebase serve --only functions",
    "shell": "firebase functions:shell",
    "start": "npm run shell",
    "deploy": "firebase deploy --only functions",
    "logs": "firebase functions:log"
  },
  "engines": {
    "node": "12"
  },
  "main": "index.js",
  "dependencies": {
    "cookie-parser": "^1.4.5",
    "cors": "^2.8.5",
    "dotenv": "^8.2.0",
    "firebase": "^7.22.0",
    "firebase-admin": "^9.4.1",
    "firebase-functions": "^3.11.0"
  },
  "devDependencies": {
    "eslint": "^5.12.0",
    "eslint-plugin-promise": "^4.0.1",
    "firebase-functions-test": "^0.2.0"
  },
  "private": true
}

config-screenshot

score 0 · Answer 3 · answered Jan 22 '21 at 15:35

I was also facing the same error. I modified the scripts section as follows. This resolved the issue and function got deployed.

"scripts": {
    "build": "",
    "serve": "firebase serve --only functions",
    "shell": "firebase functions:shell",
    "start": "npm run shell",
    "deploy": "firebase deploy --only functions",
    "logs": "firebase functions:log"
  }

missing script: build - firebase deploy

3 Answers3