Cannot deploy

[FilipeOS]

Hi there,

I can't deploy the index.js and have no idea why, can you advise please?

const functions = require('firebase-functions');
const admin = require('firebase-admin');
admin.initializeApp(functions.config().firebase);

const firestore = functions.firestore;

exports.onUserStatusChange = functions.database
	.ref('/status/{userId}')
	.onUpdate(event => {
		
		var db = admin.firestore();
		
		
		//const usersRef = firestore.document('/users/' + event.params.userId);
		const usersRef = db.collection("users");
		var snapShot = event.data;
		
		return event.data.ref.once('value')
			.then(statusSnap => snapShot.val())
			.then(status => {
				if (status === 'offline'){
					usersRef
						.doc(event.params.userId)
						.set({
							online: false
						}, {merge: true});
				}
			})
	});

ERROR:

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   'C:\\Users\\XXX\\AppData\\Roaming\\npm\\functions',
1 verbose cli   'run',
1 verbose cli   'lint' ]
2 info using [email protected]
3 info using [email protected]
4 verbose run-script [ 'prelint', 'lint', 'postlint' ]
5 info lifecycle functions@~prelint: functions@
6 info lifecycle functions@~lint: functions@
7 verbose lifecycle functions@~lint: unsafe-perm in lifecycle true
8 verbose lifecycle functions@~lint: PATH: C:\Program Files\nodejs\node_modules\npm\node_modules\npm-lifecycle\node-gyp-bin;C:\Users\XXX\AppData\Roaming\npm\functions\node_modules\.bin;C:\Users\XXX\AppData\Roaming\npm;C:\Program Files\nodejs\;C:\Program Files (x86)\Intel\iCLS Client\;C:\Program Files\Intel\iCLS Client\;C:\Program Files (x86)\Common Files\Oracle\Java\javapath;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Windows\System32\OpenSSH\;C:\Program Files (x86)\NVIDIA Corporation\PhysX\Common;C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\DAL;C:\Program Files\Intel\Intel(R) Management Engine Components\DAL;C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\IPT;C:\Program Files\Intel\Intel(R) Management Engine Components\IPT;C:\Program Files\Intel\WiFi\bin\;C:\Program Files\Common Files\Intel\WirelessCommon\;C:\Program Files\NVIDIA Corporation\NVIDIA NvDLISR;C:\Program Files\PuTTY\;D:\Android\flutter\bin;C:\Program Files\nodejs\;C:\Program Files\Git\cmd;C:\Users\XXX\AppData\Roaming\npm
9 verbose lifecycle functions@~lint: CWD: C:\Users\XXX\AppData\Roaming\npm\functions
10 silly lifecycle functions@~lint: Args: [ '/d /s /c', 'eslint .' ]
11 silly lifecycle functions@~lint: Returned: code: 1  signal: null
12 info lifecycle functions@~lint: Failed to exec lint script
13 verbose stack Error: functions@ lint: `eslint .`
13 verbose stack Exit status 1
13 verbose stack     at EventEmitter.<anonymous> (C:\Program Files\nodejs\node_modules\npm\node_modules\npm-lifecycle\index.js:301:16)
13 verbose stack     at EventEmitter.emit (events.js:189:13)
13 verbose stack     at ChildProcess.<anonymous> (C:\Program Files\nodejs\node_modules\npm\node_modules\npm-lifecycle\lib\spawn.js:55:14)
13 verbose stack     at ChildProcess.emit (events.js:189:13)
13 verbose stack     at maybeClose (internal/child_process.js:970:16)
13 verbose stack     at Process.ChildProcess._handle.onexit (internal/child_process.js:259:5)
14 verbose pkgid functions@
15 verbose cwd C:\Users\XXX\AppData\Roaming\npm
16 verbose Windows_NT 10.0.17763
17 verbose argv "C:\\Program Files\\nodejs\\node.exe" "C:\\Program Files\\nodejs\\node_modules\\npm\\bin\\npm-cli.js" "--prefix" "C:\\Users\\XXX\\AppData\\Roaming\\npm\\functions" "run" "lint"
18 verbose node v10.15.3
19 verbose npm  v6.4.1
20 error code ELIFECYCLE
21 error errno 1
22 error functions@ lint: `eslint .`
22 error Exit status 1
23 error Failed at the functions@ lint script.
23 error This is probably not a problem with npm. There is likely additional logging output above.
24 verbose exit [ 1, true ]

The Hello World I can submit and works but not your code