# Why Always report errors

**URL:** <https://discourse.processing.org/t/why-always-report-errors/36342>\
**Category:** Coding Questions\
**Tags:** homework\
**Created:** [April 15, 2022, 6:16am UTC](https://discourse.processing.org/t/why-always-report-errors/36342 "2022-04-15T06:16:06Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![glv](https://yyz2.discourse-cdn.com/flex036/user_avatar/discourse.processing.org/glv/32/18785_2.png) [@glv](https://discourse.processing.org/u/glv)\
**Post date:** [April 15, 2022, 11:05am UTC](https://discourse.processing.org/t/why-always-report-errors/36342/3 "2022-04-15T11:05:01Z")

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Hello @jiajia,

This was answered here:

> [@This is the third chapter of the book "The Nature of Code" about friction and resistance, I don't know what the problem is, as a beginner this is my first problem I can't solve, so I ask you for help.THANKS！](https://discourse.processing.org/t/this-is-the-third-chapter-of-the-book-the-nature-of-code-about-friction-and-resistance-i-dont-know-what-the-problem-is-as-a-beginner-this-is-my-first-problem-i-cant-solve-so-i-ask-you-for-help-thanks/36331/2):
>
> Hello, The answer is here: [https://natureofcode.com/book/chapter-2-forces/](https://natureofcode.com/book/chapter-2-forces/) The chapter tells you which class to put the functions in. slight_smile

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