npm install ->Failed at the node-sass@4.5.0 postinstall script

Question

I'm trying to do npm install and an error appears :

Failed at the node-sass@4.5.0 postinstall script.

I tried to delete node_modules and then reinstall it, same error appears. what will be the solution?

node v8.9.3
npm v5.4.2
ionic 3.19.0

Please post full log of the error. – Jayamurugan Jan 17 '18 at 10:10 — Jayamurugan, Jan 17 '18 at 10:10

score 166 · Answer 1 · answered Jun 18 '18 at 09:25

166

Got the same problem (node v10.3.0, ionic 3.13.0). This worked :

Delete package-lock.json,
Delete node_modules folder,
Run npm install again.

answered Jun 18 '18 at 09:25

Michaël Polla

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1

It worked. Anyone who is having this issue should try this and I am also wondering that cleaning the cache without removing the whole folder should also work. – Sagar Khatri Jul 16 '19 at 09:05
Is package.backup.json a replacement for package-lock.json? I can't find package-lock.json in my ionic app folder – mykoman May 06 '20 at 21:48

score 57 · Answer 2 · edited Dec 14 '21 at 12:26

57

try

sudo rm -rf package-lock.json node_modules
sudo npm cache clean --force
npm i --unsafe-perm node-sass

edited Dec 14 '21 at 12:26

Zymotik

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answered Dec 23 '18 at 13:26

Jaisa Ram

1,687
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2

Ran this without `sudo` worked perfectly. Thanks :) – 8bithero Aug 21 '19 at 15:23
4

Do not use sudo with npm i – Daniel Dec 18 '20 at 16:32

score 44 · Answer 3 · answered Oct 09 '18 at 07:30

44

Just Try with this command hope it will very helpful. it's working for me

sudo npm install -g node-sass@4.5.0 --unsafe-perm=true --allow-root

answered Oct 09 '18 at 07:30

Abhay Singh

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Hours, spent looking into this nightmare and this is the resolution on my mac. Thank you! – Chris Hawkes Mar 28 '19 at 16:22
4

`sudo npm install --unsafe-perm=true --allow-root` works as well. – emen Mar 29 '19 at 15:22
2

That works for me after using `sudo npm cache clean --force` – MRP Jul 22 '19 at 09:43
@Abhay:- tell me one thing bro above command is affect another ionic project or not? – Kapil Soni Aug 26 '19 at 15:29
@Kapilsoni its not affected on my project. – Abhay Singh Aug 27 '19 at 11:07
@AbhaySingh above error is resolved but got another erros – Kapil Soni Aug 27 '19 at 12:06
This solution still works in 2020! Saved my life. Thanks! – SirPedr Mar 27 '20 at 14:38
1

@SirPedr Most importantly that issue is still there in 2020...I keep coming back here every few years. – user276648 Sep 24 '20 at 05:51

score 26 · Answer 4 · answered Nov 07 '19 at 22:35

26

rolling back to node v10.17.0 fixed the problem to me.

You can use nvm to do so:

https://github.com/nvm-sh/nvm

> nvm install 10.17.0
> nvm use 10.17.0
> node -v
10.17.0

answered Nov 07 '19 at 22:35

solimanware

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this works flawlessly! saved the day man! – Gaurav Nov 30 '20 at 11:41
1

You are my hero))I searched a correct version for nvm, you save my time. – Jackkobec Mar 26 '22 at 17:14

score 21 · Answer 5 · answered Aug 05 '20 at 17:01

21

I also had to face the same problem with node v12.16.3.

Remove node-sass dependency from your package.json if it is mentioned in your dependencies.This will allow npm to install other required dependencies without any disruption.
Delete package-lock.json file and node_modules folder from your project.
Force clean the entire NPM cache by using following comand.
```
npm cache clean --force
```
Re-Install all the dependencies.
```
npm install
```
Now you can install node-sass.
```
npm i node-sass
```

answered Aug 05 '20 at 17:01

Aravinda Meewalaarachchi

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If you'll don't want to downgrade your node version, you can try this solution, it worked for me! Thanks @Aravinda – itsHarshad Feb 19 '21 at 06:31
2

Node makes me say things like "I can't believe this worked"... – Albert Jul 08 '22 at 05:20
1

you saved my time :) – Morteza QorbanAlizade Jun 25 '23 at 11:48

score 18 · Answer 6 · answered Jan 15 '20 at 16:17

18

Node-sass@4.5.0 cannot be installed on node 8

Please update either node-sass or node version compatible

Go to https://github.com/sass/node-sass/releases to check which fits for you

answered Jan 15 '20 at 16:17

amc software

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18

score 6 · Answer 7 · answered Sep 17 '18 at 08:03

6

use this flag --unsafe-perm=true

sudo npm i gulp-sass -ES --unsafe-perm=true

answered Sep 17 '18 at 08:03

Ankit Sinha

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19

Worked for me. Thanks – Niño Angelo Orlanes Lapura Feb 09 '22 at 05:14

score 4 · Answer 8 · answered Jan 17 '18 at 10:13

4

Uninstall current npm and install lower versions, it is a common error if version didn't match, downgrading node/npm will mostly fix this kind of issues

npm install -g npm@4.6.1

answered Jan 17 '18 at 10:13

Jayamurugan

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i did npm uninstall >> then npm install -g npm@4.6.1, not working – Joe Sleiman Jan 17 '18 at 10:22
I used nvm to install `lts/boron` which is the latest node 6. after that everything ran fine – michael Jan 02 '19 at 10:17

score 3 · Answer 9 · answered Jan 17 '18 at 10:32

3

After uninstalling node-sass try cleaning your npm cache. After that try installing node-sass again.

npm cache clean && npm install node-sass

answered Jan 17 '18 at 10:32

Jonas Hohmann

43
5

i tried it with npm@4.6.1, should i upgrade it to v8.9.3 as it was – Joe Sleiman Jan 17 '18 at 10:45
dumping the cache worked for me, but for my npm version it had to be `npm cache clean --force && npm install node-sass` – SalientGreen Apr 18 '19 at 19:38

score 3 · Answer 10 · answered Jan 18 '18 at 04:57

3

The minimum version of node-sass that supports Node 8 is 4.5.3. You'll need to upgrade your node-sass or downgrade your Node version. Ionic may also have separate issues since it isn't a tested platform with node-sass.

answered Jan 18 '18 at 04:57

nschonni

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28
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score 2 · Answer 11 · answered Jan 17 '18 at 10:07

2

You should try to install SASS.

I remember havign this issue in AngularJS with compass, I had to install it with Ruby to make it work. This was 3 years ago, so I'm not sure this would be the solution, but it doesn't cost anything except time to try, right ?

answered Jan 17 '18 at 10:07

pm ERR! code ELIFECYCLE npm ERR! errno 1 npm ERR! node-sass@4.5.0 postinstall: `node scripts/build.js` npm ERR! Exit status 1 npm ERR! npm ERR! Failed at the node-sass@4.5.0 postinstall 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\jsleiman\AppData\Roaming\npm-cache\_logs\2018-01-17T10_13_04_021Z-debug.log – Joe Sleiman Jan 17 '18 at 10:13
Ok I give up. Good luck. – Jan 17 '18 at 10:14
Installing sass globally worked for me. I still see the npm build errors but they seem to be ignored and npm install succeeds. – C.M. Dec 20 '19 at 16:21

score 2 · Answer 12 · answered Feb 27 '20 at 17:56

I needed to take the following steps to "resolve" this problem:

Create folder at the root: mkdir ~/safe_node_module;
Download package wget -q https://github.com/sass/node-sass/releases/download/v4.13.0/linux-x64-72_binding.node and then send to the folder created in step 1;
Set the export environment variable export SASS_BINARY_PATH=/home/ronaldaraujo/safe_node_module/linux-x64-72_binding.node;
Install packages normally npm i;

score 2 · Answer 13 · answered Feb 11 '21 at 04:07

2

Install the higher version of node-sass

npm install node-sass@4.13.1

answered Feb 11 '21 at 04:07

Vinay Somawat

639
14
23

score 1 · Answer 14 · answered May 27 '19 at 21:52

I had the same issue with a new install with Keystone.js. I was able to get pass this issue by removing Node Sass from package.json and running npm install again. Being that the package wasn't listed under node modules. And it worked fine after that.

score 1 · Answer 15 · answered Jun 02 '20 at 23:52

1

Solved this by force installing node-sass locally: npm install -f node-sass

I was pretty sure I knew what I was doing... this

answered Jun 02 '20 at 23:52

saber tabatabaee yazdi

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score 1 · Answer 16 · answered Dec 08 '20 at 13:51

I'm trying to do npm install in the ionic project and an error appears

Failed at the node-sass@4.9.0 postinstall script.

The following steps worked for me ionic project

Remove npm than run the following commands

npm i

npm install @ionic/app-scripts@latest--unsafe-perm=true --allow-root

score 0 · Answer 17 · answered May 29 '20 at 07:22

0

Sometime unable to download file win32-x64-79_binding.node due to your proxy restrict to download so plase follow this below link set them manually. https://github.com/sass/node-sass/issues/2773

answered May 29 '20 at 07:22

Arunkumar Ramanujam

1
1

Saabbir · Answer 18 · 2021-08-18T11:44:19.960

0

This works for me on Windows running Node.js version v14.17.3

npm install -g node-sass@4.5.0 --unsafe-perm=true --allow-root --force

Note: My node-sass version was node-sass@4.13.1. But the above command will work for other versions too. Just replace the node-sass version number in the above command with your required node-sass version.

edited Aug 18 '21 at 11:44

answered Aug 18 '21 at 11:38

Saabbir

588
6
8

score -1 · Answer 19 · edited Mar 11 '20 at 09:18

-1

The following steps worked for me

npm install -g node-sass@4.5.0 --unsafe-perm=true --allow-root

npm cache clean


npm install

edited Mar 11 '20 at 09:18

Amit Joshi

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answered Mar 11 '20 at 08:55

rahul gowda

9
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npm install ->Failed at the node-sass@4.5.0 postinstall script

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