# Webcam Bar code/ QR code Read

**URL:** <https://discourse.processing.org/t/webcam-bar-code-qr-code-read/2911>\
**Category:** Project Guidance\
**Created:** [August 24, 2018, 6:53am UTC](https://discourse.processing.org/t/webcam-bar-code-qr-code-read/2911 "2018-08-24T06:53:53Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![tony](https://yyz2.discourse-cdn.com/flex036/user_avatar/discourse.processing.org/tony/32/949_2.png) [@tony](https://discourse.processing.org/u/tony)\
**Post date:** [August 24, 2018, 6:11pm UTC](https://discourse.processing.org/t/webcam-bar-code-qr-code-read/2911/2 "2018-08-24T18:11:44Z")

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Can I ask you to be more specific? For instance

- Is the library you’re using for reading the code up to date?
- Does the error occur in your own code, or the library’s code?
- _Which_ QR-Code library are you using? There’s a lot!

Also, if you haven’t already, take a look at our guide for asking questions:

> [@Guidelines—Asking Questions](https://discourse.processing.org/t/guidelines-tips-on-asking-questions/2147):
>
> Summary (TL;DR) Ask complete questions to get better answers! Be specific. For example: I want to load an image. I tried using createImg() , and I expected the image to be on canvas, but what happened instead was the image showing up below the canvas. Isolate your problem and work in small steps. Share only the code directly related to your problem if it is part of a bigger project, and if something isn’t working, try the smallest code that could do the thing you want. Can we run your code to …

(Don’t feel bad about it though, breaking down a problem and communicating it well is a skill that is really only learned through practice. It’s something that I still have trouble with sometimes 😅)

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