calling removeAllListeners() method which doesn't exit

[joselee]

Tried running a simple test. Here's my server.js:

var fs = require('fs'); var xml2js = require('xml2js');

var parser = xml2js.Parser();

fs.readFile(__dirname + '/test.xml', function(err, data) { parser.parseString(data, function(err, result){ console.dir(result); console.log("done"); }); });

Console throws an error: Object #

[Leonidas-from-XIV]

What is the test.xml that you are parsing? Have you tried running the unittests, if so, did they work?

[albertoa]

Note that the problem is while instantiating Parser. In my case:

var xml2jsparser = require('xml2js').Parser({"explicitArray":true,"ignoreAttrs":true});

is the line that causes the problem, well before I try to process an XML string.

[Leonidas-from-XIV]

You forgot to use the new keyword,

var xml2js = require('xml2js')
var xml2jsparser = new xml2js.Parser({"explicitArray":true,"ignoreAttrs":true});

When you add this keyword you can create instances just fine.

[albertoa]

Yep I can confirm that it was indeed the lack of new.

Thanks.

[Mithgol]

@Leonidas-from-XIV

Would you be interested in eliminating any further issues related to the lack of new?

That could be accomplished by turning xml2js.Parser() into some John Resig's self-calling constructor (that autoruns new before itself whenever new is missing).

Such a change would be a pretty one-liner, like if ( !(this instanceof exports.Parser) ) return new exports.Parser(opts) in the first line of your Parser's constructor, if it were in JavaScript.

(However, it's in CoffeeScript — and I don't know CoffeeScript enough to make a reliable pull request, even for a one-liner.)

[Leonidas-from-XIV]

@Mithgol I agree this is a good idea, can you open a ticket to keep track of this feature? I'll try to add that ASAP, should be very similar in CoffeeScript as well.

[Mithgol]

Okay. Opened #89.

[Leonidas-from-XIV]

Thanks. Then this issue can be considered closed for good.

[Mithgol]

I've also noticed that I somehow ended making the hyperlink titled “John Resig's self-calling constructor” pointing to http://habrahabr.ru/post/135027/ (a detailed article, but in Russian and thus not internationally helpful) instead of the intended http://ejohn.org/blog/simple-class-instantiation/ (the original Resig's blog entry) yesterday.

(That's fixed now.)

[hatton]

Note to others that may happen upon this issue, as I did. I had the same error with a modern xml2js (so it wasn't the same problem). The problem was building in an environment (vite with vite-plugin-electron-renderer) that was choking on the cjs nature of this older library. The fix was to tell that environment leave xml2js as an "external package".

[VaneeOfficialNet]

Hi @hatton, How do we let Vite know xml2js as external package. I'm facing error: TypeError: this.removeAllListeners is not a function at Parser.reset (parser.js:111:12)

[hatton]

See https://vitejs.dev/config/dep-optimization-options.html. In my case, I have

      optimizeDeps: {
        include: ["xml2js", "glob", "fs-extra", "graceful-fs"]
      }

[VaneeOfficialNet]

Thanks, @hatton .. However, the issue still exists..

[psantos9]

Getting the same issue, after adding "optimizeDeps" as recommended by @hatton. Any other clues here? Thanks

[Pic212]

in my case, installing events solved the issue: npm i events

Good afternoon, same error, seeking for help please !

Thank you in advance !

Empty NUXT 3 project, npm i xml2js + timers

package.json: { "name": "nuxt-app", "private": true, "scripts": { "build": "nuxt build", "dev": "nuxt dev", "generate": "nuxt generate", "preview": "nuxt preview", "postinstall": "nuxt prepare" }, "devDependencies": { "@nuxt/devtools": "latest", "@types/node": "^18.17.3", "nuxt": "^3.6.5" }, "dependencies": { "timers": "^0.1.1", "xml2js": "^0.6.2" } }

nuxt.config.ts: // https://nuxt.com/docs/api/configuration/nuxt-config export default defineNuxtConfig({ devtools: { enabled: true }, vite:{ optimizeDeps: { include: ["xml2js"] } } })

app.vue:

sax.js:222 Uncaught TypeError: Cannot read properties of undefined (reading 'prototype') at sax.js:222:46 at node_modules/sax/lib/sax.js (sax.js:1565:1) at require (chunk-RSJERJUL.js?v=b6cf498b:3:50) at Object. (parser.js:9:9) at node_modules/xml2js/lib/parser.js (parser.js:395:4) at __require (chunk-RSJERJUL.js?v=b6cf498b:3:50) at Object. (xml2js.js:12:12) at node_modules/xml2js/lib/xml2js.js (xml2js.js:39:4) at require (chunk-RSJERJUL.js?v=b6cf498b:3:50) at xml2js.js:39:13

[eimlfang]

@Pic212 is helpful <script setup> import { parseString } from 'xml2js'; </script>

[jhfoo]

+1 on @Pic212 's latest answer above:

npm i events resolved the error.

[josephosan]

same as @jhfoo npm i events. and then rerun your project. worked for me.

[willymateo]

thanks @josephosan @jhfoo @Pic212 . Installing events resolved the error: npm i events