ReferenceError: TextEncoder is not defined Node.js with mongoose

Question

the problem seems to be with mongoose & mongodb packages as it works fine when

mongoose.connect('mongodb+srv://mydb:<password>@cluster0.w1opr.mongodb.net/test?retryWrites=true&w=majority');

is removed it also works fine on repl.it cloud env here is my code

var express = require('express');
var ejs = require('ejs');
var app = express();
var bodyParser = require('body-parser');
var mongoose = require('mongoose');
mongoose.connect('mongodb+srv://mydb:<password>@cluster0.w1opr.mongodb.net/test? 
retryWrites=true&w=majority');
app.set('view engine','ejs')
app.use(bodyParser.urlencoded({extended: true}));
.
.
.
app.listen(3000,function(){
console.log('Server is running on port 3000');
});

Muhammad Tariq · Accepted Answer · 2021-09-08T06:48:43.300

35

Actually mongoose 6 requires Node 12 or higher, so this is expected behavior. Mongoose 6 does not support Node 10.So updating Node version will fix the issue. It also fix the problem by downgrading mongoose version to 5.

edited Sep 08 '21 at 06:48

answered Sep 08 '21 at 06:42

Muhammad Tariq

396
2
5

4

I am using Node 14 and still go this error. – dragonfly02 Aug 23 '22 at 05:24
4

Using node 16 and the error persists. – Dan Oct 27 '22 at 23:21
4

getting this error with node version 18 too – Gaurav Ingalkar Nov 03 '22 at 05:21

score 6 · Answer 2 · answered Dec 20 '22 at 13:50

6

Had the same problem when using tests. Setting the testEnvironment to node in my jest config fixed it (https://mongoosejs.com/docs/jest.html)

module.exports = {
  testEnvironment: 'node'
};

answered Dec 20 '22 at 13:50

Jonathan Callewaert

121
2
5

1

this answer was the correct one for me. – AmitK Feb 15 '23 at 10:41

score 5 · Answer 3 · answered Sep 03 '21 at 04:51

Check your node version, if it's lower than 12 it won't work, if that's the case updating node should do do the job. You could downgrade your mongoose version too.

There's an issue closed on Mongoose github page. https://github.com/Automattic/mongoose/issues/10638

score 5 · Answer 4 · answered Oct 28 '21 at 07:29

To get rid of this error in Windows upgrade to the latest version of Node.js by visiting this site https://nodejs.org/en/download/ and downloading the latest version of Node.js else if you do not want to upgrade to the latest version then you can get rid of this error by adding this line at the top of the file in node_modules/whatwg-url/dist/encoding.js:

const {TextDecoder, TextEncoder} = require("util");

score 0 · Answer 5 · answered Mar 31 '22 at 04:57

0

For me i'm using UBUNUTU 20.04, as @MuhammadTariq said my node version was 10 and after upgrading the version to 16 the error is gone.

answered Mar 31 '22 at 04:57

sh6210

4,190
1
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27

ReferenceError: TextEncoder is not defined Node.js with mongoose

5 Answers5