"An unexpected error has occurred" after firebase deploy

Question

When I am hosting my web page through firebase hosting then after writing command firebase deploy I got the following error:

Microsoft Windows [Version 10.0.14393]
(c) 2016 Microsoft Corporation. All rights reserved.

C:\Users\amarg\Desktop\amar>firebase init

     ######## #### ########  ######## ########     ###     ######  ########
     ##        ##  ##     ## ##       ##     ##  ##   ##  ##       ##
     ######    ##  ########  ######   ########  #########  ######  ######
     ##        ##  ##    ##  ##       ##     ## ##     ##       ## ##
     ##       #### ##     ## ######## ########  ##     ##  ######  ########

You're about to initialize a Firebase project in this directory:

  C:\Users\amarg\Desktop\amar

Before we get started, keep in mind:

  * You are initializing in an existing Firebase project directory

? Are you ready to proceed? Yes
? What Firebase CLI features do you want to setup for this folder? Hosting: Configure and deploy Firebase Hosting sites


=== Project Setup

First, let's associate this project directory with a Firebase project.
You can create multiple project aliases by running firebase use --add,
but for now we'll just set up a default project.

i  .firebaserc already has a default project, skipping

=== Hosting Setup

Your public directory is the folder (relative to your project directory) that
will contain Hosting assets to be uploaded with firebase deploy. If you
have a build process for your assets, use your build's output directory.

? What do you want to use as your public directory? public
? Configure as a single-page app (rewrite all urls to /index.html)? No
? File public/404.html already exists. Overwrite? No
i  Skipping write of public/404.html
? File public/index.html already exists. Overwrite? No
i  Skipping write of public/index.html

i  Writing configuration info to firebase.json...
i  Writing project information to .firebaserc...

+  Firebase initialization complete!

C:\Users\amarg\Desktop\amar>firebase deploy

=== Deploying to 'learningweb-6b2a3'...

i  deploying hosting
+  database: rules ready to deploy.
i  hosting: preparing public directory for upload...

Error: An unexpected error has occurred.

C:\Users\amarg\Desktop\amar>

I'd recommend reaching out to Firebase [support](https://firebase.google.com/support/contact/troubleshooting/) and include the output of `firebase deploy --debug` in your message. — Michael Bleigh, Feb 27 '17 at 18:34
follow this tutorial step by step or watch youtube video on this blog. you will understand everything. http://codingaffairs.blogspot.com/2017/06/how-to-firebase-web-hosting-and-connect.html — Developine, Jun 25 '17 at 06:15
Check the below solution [https://stackoverflow.com/questions/50360477/angular-6-0-firebase-hosting-deploy-not-working/51809723#51809723](https://stackoverflow.com/questions/50360477/angular-6-0-firebase-hosting-deploy-not-working/51809723#51809723) — bajran, Aug 12 '18 at 14:41

score 26 · Answer 1 · answered Nov 23 '18 at 17:39

26

For me updating firebase-tools solved the issue

run below command in your cmd prompt

npm install -g firebase-tools

then try firebase init again

answered Nov 23 '18 at 17:39

Ravi arn

484
4
13

score 12 · Answer 2 · answered Dec 15 '19 at 11:24

First of all, looking into firebase-debug.log in the root of your project (next to firebase.json) might help to define the error. In my case there was "Cannot read property 'deploys' of undefined" error. There's an associated issue on github. Removing extra sites (I didn't actually need them) and leaving only the default one in the Firebase hosting dashboard solved my problem.

score 10 · Answer 3 · answered Dec 30 '19 at 12:55

10

If you still are serving your site on localhost using firebase serve it might cause problems. Shut it down then try the deploy. Worked for me.

answered Dec 30 '19 at 12:55

Mr. Arbitrary

932
11
25

this is the one that helped me – sshah98 Apr 10 '20 at 03:16

score 8 · Answer 4 · answered Jan 17 '19 at 12:58

Close the integrated terminal of your IDE by typing exit and hit enter, then re-open it and give the command firebase deploy

If the above option does not work then just use terminal in linux/mac and CMD in windows and navigate to the folder then give firebase deploy command

score 6 · Answer 5 · answered Apr 29 '18 at 19:15

6

In my case, resolve with:

firebase deploy --except functions

answered Apr 29 '18 at 19:15

Diego Venâncio

5,698
2
49
68

5

While this works for building any other firebase services you are using, it doesn't include the function service... it's kinda like kicking the can down the road if the problem in your environment is firebase functions. – Darrow Hartman Oct 10 '20 at 19:23
Very bad. This is not resolving the issue, instead omitting functionality of your app. – codingexplorer Jan 29 '23 at 15:00

Maheshvirus · Answer 6 · 2020-04-20T04:21:46.350

4

Below code fixed my issue.

Add below code into firebase.json.

 {
    "hosting": {
      "public": "./",
      "ignore": [
        "firebase.json",
        "database-rules.json",
        "storage.rules",
        "functions"
      ],
      "headers": [{
        "source" : "**/*.@(js|html)",
        "headers" : [ {
          "key" : "Cache-Control",
          "value" : "max-age=0"
        } ]
      }]
    }
  }

edited Apr 20 '20 at 04:21

answered Jan 09 '18 at 12:21

Maheshvirus

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40

This worked for me, I was having the error: "the firebase database has been disabled by a database owner function" – M. Mansuelli May 26 '19 at 23:57
4

DONT simply copy and paste this into your firebase.json – Kevin Potgieter Apr 19 '20 at 20:37
1

What the hell!! This just ignores all major services like functions and databases. Please DONT use this if you are using functions or databases – Trect Jul 22 '21 at 15:57

score 3 · Answer 7 · edited Apr 22 '20 at 20:40

3

Make sure that you are logged in by running firebase login in the terminal.

edited Apr 22 '20 at 20:40

Adam Michalak

155
1
8

answered Apr 08 '20 at 15:36

George Ogden

596
9
15

3

"unexpected error" for not logged in seem like a bad joke :D Thanks for your answer. – Günter Zöchbauer Apr 16 '20 at 14:49

score 2 · Answer 8 · answered Jan 01 '21 at 19:50

2

I was using Firebase functions in the past, I scrapped the idea and created what I wanted in node.js.

So, if you are not using firebase functions remove the following in firebase.json file

      "functions": {
    "predeploy": [
      "npm --prefix \"$RESOURCE_DIR\" run lint"
    ]
  }

answered Jan 01 '21 at 19:50

Michael Norris

73
1
8

Thanks @MichaelNorris It saves my day – Naga Hemanth Mar 31 '21 at 23:02

score 2 · Answer 9 · answered Jan 07 '21 at 12:31

For me I tried a lot, then I figured out that firebase.json still has functions, I removed it and it worked By the way I was using

firebase deploy --except functions
firebase deploy --only hosting

That didn't help so maybe remove the ones that you don't need

{
  *"functions": {
    "predeploy": [
  "npm --prefix \"$RESOURCE_DIR\" run lint",
  "npm --prefix \"$RESOURCE_DIR\" run build"
 ]
  },*
 "hosting": {
   "public": "build",
   "ignore": [
   "firebase.json",
   "**/.*",
   "**/node_modules/**"
 ]
}
 }

score 1 · Answer 10 · answered Nov 14 '17 at 13:23

1

Yes I've faced this issue.. This is because of my node version I was using Node v.8.0.0 I just downgrade it to Node v.16.0.3 and then my deployment done :)

answered Nov 14 '17 at 13:23

Rizwan Jamal

1,254
10
13

Snehil Chouhan · Answer 11 · 2018-12-13T14:53:14.127

It could be due to npm and node version For mac os, you can update npm using command:

npm install -g npm@latest

and update node directly by going to link https://nodejs.org/en/ and download installer. and run

npm install -g firebase-tools

For removing firebase hosting deployment errors (also if you are updating existing hosted site) you can do process again 1] firebase login 2] firebase init 3] firebase deploy

Make sure your current folder has two things: public folder (which contains all files index.html) And firebase.json file

score 1 · Answer 12 · edited Aug 28 '21 at 23:37

1

In my case, this error occurred when I had not set the site name in firebase.json.

edited Aug 28 '21 at 23:37

Taslim Oseni

6,086
10
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answered May 22 '20 at 12:33

Nathan Foreman

11
2

score 1 · Answer 13 · answered Sep 08 '20 at 13:54

1

In your firebase.json file, do you have a value set for functions or functions.source? If you do, that may be causing this issue. Remove the functions in angular.json it will work

Firebase document for functions

answered Sep 08 '20 at 13:54

ragav

29
3

score 0 · Answer 14 · answered Jul 24 '18 at 12:11

0

I get that error when I haven't run npm install. Try it out. I hope that simple solution helps anyone with the same problem.

answered Jul 24 '18 at 12:11

Gásten

123
3
8

1

For me, it worked when I went into the functions directory and ran npm install. See here: https://stackoverflow.com/questions/48602833/eslint-error-while-trying-to-deploy-firebase-functions – Darrow Hartman Oct 10 '20 at 19:22

score 0 · Answer 15 · edited May 12 '20 at 11:53

0

To solve this problem without restart,

You have to make sure you shut down the server, by click on CTRL + C
Then deploy your functions by firebase deploy --only functions
Then run it again firebase --serve

edited May 12 '20 at 11:53

RobC

22,977
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answered May 11 '20 at 20:26

lio

419
5
9

score 0 · Answer 16 · answered Jun 08 '20 at 05:49

0

For me, it is because I run firebase deploy inside functions folder. I need to run it in the parent firebase directory

answered Jun 08 '20 at 05:49

onmyway133

45,645
31
257
263

score 0 · Answer 17 · answered Mar 23 '21 at 15:43

you should check if you have the folder of nodeJs and the folder of your website in the same local disk first!

I had the same problem, NodeJs was in local disk (D:) and I was trying deploy from local disk (C:), but when I changed the folder of the website to (D:) it worked fine.

score 0 · Answer 18 · answered Mar 27 '21 at 21:30

firebase deploy, firebase serve, firebase ... without any meaningful information in the firebase-debug.log while using Cloud Functions for Firebase?

Check out if you've package.json in your functions folder. It should have all dependencies from your root's package.json, and look somehow like this:

{
  "name": "functions",
  "description": "Cloud Functions for Firebase",
  "engines": {
    "node": "12"
  },
  "scripts": {
    "serve": "firebase serve --only functions",
    "shell": "firebase functions:shell",
    "start": "npm run shell",
    "deploy": "firebase deploy --only functions",
    "logs": "firebase functions:log"
  },
  "dependencies": {
    "@angular-builders/custom-webpack": "^11.1.1",
    "@angular/animations": "^11.2.7",
    "@angular/cdk": "^11.2.6",
    ...
  },
  "private": true
}

devDependencies aren't required.

score 0 · Answer 19 · answered Apr 20 '21 at 18:17

Just check your firebase.json and remove unnecessary dependencies, check mine

{
"hosting": {
"public": "build",
"ignore": [
  "firebase.json",
  "**/.*",
  "**/node_modules/**"
],
"rewrites": [
  {
    "source": "**",
    "destination": "/index.html"
  }
]
}
}

Rishabh Pratap SIngh · Answer 20 · 2023-05-27T19:28:17.040

0

If it is throwing this error again and again "An unexpected error has occurred. [Reason: Requested entity already exists] in firebase console"

Then instead of doing anything simply restart your system.Then you will get to know it will automatically get registered.

Then click on your ProjectName and click on settings Icon and then you will get the option "See SDK Instructions". Go continue with these steps

edited May 27 '23 at 19:28

answered May 27 '23 at 19:17

Rishabh Pratap SIngh

1
1

score -2 · Answer 21 · answered Aug 03 '22 at 13:12

-2

FWIW, I had this error while calling firebase deploy from a wrong directory..

answered Aug 03 '22 at 13:12

Nicolas Degen

1,522
2
15
24

score -2 · Answer 22 · answered Feb 07 '23 at 12:18

-2

I'm not sure that this is the answer, but I think this happened to me because I was still running npm run dev in another terminal when I did firebase deploy.

answered Feb 07 '23 at 12:18

Peter Davis

162
1
8

"An unexpected error has occurred" after firebase deploy

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