# Chapter 2 - Missing challenge solution

**URL:** <https://forums.kodeco.com/t/chapter-2-missing-challenge-solution/169015>\
**Category:** Modern Concurrency in Swift\
**Created:** [April 14, 2022, 5:32pm UTC](https://forums.kodeco.com/t/chapter-2-missing-challenge-solution/169015 "2022-04-14T17:32:26Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![igenio](https://assets.chunter.kodeco.com/user_avatar/forums.kodeco.com/igenio/32/102075_2.png) [@igenio](https://forums.kodeco.com/u/igenio)\
**Post date:** [April 14, 2022, 5:32pm UTC](https://forums.kodeco.com/t/chapter-2-missing-challenge-solution/169015/1 "2022-04-14T17:32:27Z")

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Hi, the SuperStorageModel.swift file in the challenge folder, doesn’t contains the solution code.

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**Author:** ![icanzilb](https://assets.chunter.kodeco.com/user_avatar/forums.kodeco.com/icanzilb/32/109333_2.png) [@icanzilb](https://forums.kodeco.com/u/icanzilb)\
**Post date:** [April 19, 2022, 8:54am UTC](https://forums.kodeco.com/t/chapter-2-missing-challenge-solution/169015/2 "2022-04-19T08:54:22Z")

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Hi, that’s true. The code to the challenge in Chapter 2 is located in DownloadView.swift: [mcon-materials/DownloadView.swift at editions/1.0 · raywenderlich/mcon-materials · GitHub](https://github.com/raywenderlich/mcon-materials/blob/editions/1.0/02-beginner-async-await/projects/challenge/SuperStorage/DownloadView.swift#L54-L59)

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**Author:** ![icanzilb](https://assets.chunter.kodeco.com/user_avatar/forums.kodeco.com/icanzilb/32/109333_2.png) [@icanzilb](https://forums.kodeco.com/u/icanzilb)\
**Post date:** [April 19, 2022, 8:55am UTC](https://forums.kodeco.com/t/chapter-2-missing-challenge-solution/169015/3 "2022-04-19T08:55:46Z")

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As per the challenge:  
 ![image](https://files.chunter.kodeco.com/original/3X/7/0/700b0994bd1e10a0607e3b8405f7b99bcfc1b512.png)

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**Author:** ![mayo](https://assets.chunter.kodeco.com/user_avatar/forums.kodeco.com/mayo/32/110330_2.png) [@mayo](https://forums.kodeco.com/u/mayo)\
**Post date:** [December 19, 2022, 1:48pm UTC](https://forums.kodeco.com/t/chapter-2-missing-challenge-solution/169015/4 "2022-12-19T13:48:08Z")

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I was expecting to have to implement progress here since we explicitly set the data task’s delegate to `nil` earlier in the chapter. I think it would be good to say “Challenge: Displaying an activity indicator while downloading” here so it’s clear we don’t need to update the progress as we’re downloading.