Cannot read properties of null (reading 'byteLength')

[stark fiber]

I keep getting this error in my script but I can't figure out the cause of it.

TypeError: Cannot read properties of null (reading 'byteLength')
    at Object.pull (C:\Users\*\Documents\Bot\node_modules\undici\lib\web\fetch\body.js:66:20)
    at invokePromiseCallback (node:internal/webstreams/util:172:10)
    at Object.<anonymous> (node:internal/webstreams/util:177:23)
    at readableByteStreamControllerCallPullIfNeeded (node:internal/webstreams/readablestream:3145:24)
    at readableByteStreamControllerPullSteps (node:internal/webstreams/readablestream:3254:3)
    at [kPull] (node:internal/webstreams/readablestream:1201:5)
    at readableStreamDefaultReaderRead (node:internal/webstreams/readablestream:2269:39)
    at nextSteps (node:internal/webstreams/readablestream:493:7)
    at async writeIterable (C:\Users\*\Documents\Bot\node_modules\undici\lib\dispatcher\client-h1.js:1439:22)

Short code snippet:

if (interaction.commandName === "cardtest") {
    const canvas = createCanvas(700, 250);
    const context = canvas.getContext('2d');

    const backgroundPath = path.join(__dirname, "assets", "contribution-card-background.png")
    const background = await readFile(backgroundPath);
    const backgroundImage = new Image();
    backgroundImage.src = background;
    context.drawImage(backgroundImage, 0, 0, canvas.width, canvas.height);

    const attachment = new AttachmentBuilder(canvas.toBuffer('image/png'), { name: 'profile-image.png' });
    console.log(attachment)

    interaction.reply({ files: [attachment] });
}

[stark fiber]

The code snippet is primarily from this sample:
https://github.com/discordjs/guide/blob/main/code-samples/popular-topics/canvas/14/index.js

[hasty shoal]

What is your discord.js version? Can you do npm ls discord.js?

[stark fiber]

14.22.1

[hasty shoal]

Can you do, npm ls @discordjs/rest and show me the output?

[hasty shoal]

Weird, this was fixed. I'm not sure if the fix was backported tho

[stark fiber]

i've been stuck at this problem for a few hours now, I might just scrap the entire thing for the time being

[hasty shoal]

The original issue was from undici which labeled it as non-issue. There was a fix from d.js side
for dev in this pr https://github.com/discordjs/discord.js/pull/11015

[stark fiber]

that sucks

not really sure where to go from there

[hasty shoal]

Do you have undici installed separately?

[stark fiber]

yeah

[hasty shoal]

Then that's likely the issue, the version affected with the bug is not used by d.js, so you installing the latest version could be the issue here

[stark fiber]

let me try and uninstall

the built attachment exists I think, but the image is never sent via reply

the error doesnt show up anymore either

theres nothing wrong with this is there

const attachment = new AttachmentBuilder(canvas.toBuffer('image/png'), { name: 'profile-image.png' });
return interaction.reply({ files: [attachment] })

[stark fiber]

so things work now because I also had noblox.js installed

which was interferring with the discord.js' undici