firebase deploy functions not working - firebase

Question

It this the first time that this happend to me. I've tried to init firebase more than once, but still having the same results.
When I try to deploy functions with command:
firebase deploy --only functions
The console returns next:
=== Deploying to 'hay-equipo-3a19b'...
i deploying functions
Running command: npm --prefix functions run build
npm ERR! missing script: build
npm ERR! A complete log of this run can be found in:
npm ERR! C:\Users\Usuario\AppData\Roaming\npm-cache\_logs\2018-01-24T21_36_36_260Z-debug.log
Error: functions predeploy error: Command terminated with non-zero exit code1
Here is my package.json of functions folder
{
"name": "functions",
"description": "Cloud Functions for Firebase",
"scripts": {
"serve": "firebase serve --only functions",
"shell": "firebase experimental:functions:shell",
"start": "npm run shell",
"deploy": "firebase deploy --only functions",
"logs": "firebase functions:log"
},
"dependencies": {
"firebase-admin": "~5.8.1",
"firebase-functions": "^0.8.1",
"nodemailer": "^4.4.2"
},
"private": true
}
The log file says
0 info it worked if it ends with ok
1 verbose cli [ 'C:\\Program Files\\nodejs\\node.exe',
1 verbose cli 'C:\\Program Files\\nodejs\\node_modules\\npm\\bin\\npm-cli.js',
1 verbose cli '--prefix',
1 verbose cli 'functions',
1 verbose cli 'run',
1 verbose cli 'build' ]
2 info using npm#5.5.1
3 info using node#v8.9.3
4 verbose stack Error: missing script: build
4 verbose stack at run (C:\Program Files\nodejs\node_modules\npm\lib\run-script.js:151:19)
4 verbose stack at C:\Program Files\nodejs\node_modules\npm\lib\run-script.js:61:5
4 verbose stack at C:\Program Files\nodejs\node_modules\npm\node_modules\read-package-json\read-json.js:115:5
4 verbose stack at C:\Program Files\nodejs\node_modules\npm\node_modules\read-package-json\read-json.js:402:5
4 verbose stack at checkBinReferences_ (C:\Program Files\nodejs\node_modules\npm\node_modules\read-package-json\read-json.js:357:45)
4 verbose stack at final (C:\Program Files\nodejs\node_modules\npm\node_modules\read-package-json\read-json.js:400:3)
4 verbose stack at then (C:\Program Files\nodejs\node_modules\npm\node_modules\read-package-json\read-json.js:160:5)
4 verbose stack at ReadFileContext.<anonymous> (C:\Program Files\nodejs\node_modules\npm\node_modules\read-package-json\read-json.js:332:20)
4 verbose stack at ReadFileContext.callback (C:\Program Files\nodejs\node_modules\npm\node_modules\graceful-fs\graceful-fs.js:78:16)
4 verbose stack at FSReqWrap.readFileAfterOpen [as oncomplete] (fs.js:420:13)
5 verbose cwd C:\Users\Usuario\Projects\torneos-club-oeste
6 verbose Windows_NT 10.0.16299
7 verbose argv "C:\\Program Files\\nodejs\\node.exe" "C:\\Program Files\\nodejs\\node_modules\\npm\\bin\\npm-cli.js" "--prefix" "functions" "run" "build"
8 verbose node v8.9.3
9 verbose npm v5.5.1
10 error missing script: build
11 verbose exit [ 1, true ]

Answer 1

Seems if you just put a blank "build" entry into your functions/package.json file under 'scripts' then it solves this (well it did for me).
{
"scripts": {
"build": "", <----- simply add this!
...
},
...
}