# Errata in challenges in chapter 8

**URL:** <https://forums.kodeco.com/t/errata-in-challenges-in-chapter-8/41490>\
**Category:** iOS Animations by Tutorials\
**Created:** [April 12, 2018, 8:22am UTC](https://forums.kodeco.com/t/errata-in-challenges-in-chapter-8/41490 "2018-04-12T08:22:04Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![ericlm](https://assets.chunter.kodeco.com/user_avatar/forums.kodeco.com/ericlm/32/111914_2.png) [@ericlm](https://forums.kodeco.com/u/ericlm)\
**Post date:** [April 12, 2018, 8:22am UTC](https://forums.kodeco.com/t/errata-in-challenges-in-chapter-8/41490/1 "2018-04-12T08:22:04Z")

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In the chapter 8 of the book, for the challenges 2 and 3, it is asked to set the animation’s duration to 1.0, and to 0.33, but in the sample code, it’s set to 0.5. Also, for the challenge 3, it’s not asked to set a `fromValue` for the `roundCorners` animation, but it is present in the sample code.

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**Author:** ![shogunkaramazov](https://assets.chunter.kodeco.com/user_avatar/forums.kodeco.com/shogunkaramazov/32/108826_2.png) [@shogunkaramazov](https://forums.kodeco.com/u/shogunkaramazov)\
**Post date:** [April 29, 2018, 10:15pm UTC](https://forums.kodeco.com/t/errata-in-challenges-in-chapter-8/41490/2 "2018-04-29T22:15:55Z")

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Thank you for the heads up - much appreciated! :] We will definitely fix this in the book’s next version.

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**Author:** ![system](https://s3.amazonaws.com/cdn.raywenderlich.com/community/forum-assets/noun-game-ghost-878668.png) [@system](https://forums.kodeco.com/u/system)\
**Post date:** [September 26, 2018, 12:28am UTC](https://forums.kodeco.com/t/errata-in-challenges-in-chapter-8/41490/3 "2018-09-26T00:28:43Z")

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Closed on September 26, 2018, 12:28am UTC

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