# šŸ“š Official Books **URL:** https://forums.kodeco.com/c/books/6.md?page=83 [Latest](https://forums.kodeco.com/latest.md) Ā· [Categories](https://forums.kodeco.com/categories.md) Ā· [Tags](https://forums.kodeco.com/tags.md) **Page:** 84 --- ## [Don't know where to download the assets](https://forums.kodeco.com/t/dont-know-where-to-download-the-assets/84837)
**Author:** [@misenrol](https://forums.kodeco.com/u/misenrol)\ **Replies:** 1\ **Last updated:** [November 14, 2019, 6:10pm UTC](https://forums.kodeco.com/t/dont-know-where-to-download-the-assets/84837 "2019-11-14T18:10:59Z")
So I bought the book version of the tutorial and I finished the first game but know I donā€™t know where I can download the assets for Robot Rampage. Please help --- ## [Chapter1 BobbleHeadWars](https://forums.kodeco.com/t/chapter1-bobbleheadwars/88127)
**Author:** [@nakram](https://forums.kodeco.com/u/nakram)\ **Replies:** 1\ **Last updated:** [November 14, 2019, 3:42pm UTC](https://forums.kodeco.com/t/chapter1-bobbleheadwars/88127 "2019-11-14T15:42:30Z")
Hi I can not import soud in chapter1 when i import package on my mac . But it is working on My pc --- ## [Chapter 1: Installation failed due to: 'null'](https://forums.kodeco.com/t/chapter-1-installation-failed-due-to-null/84787)
**Author:** [@mrbass21](https://forums.kodeco.com/u/mrbass21)\ **Replies:** 1\ **Last updated:** [November 14, 2019, 3:01pm UTC](https://forums.kodeco.com/t/chapter-1-installation-failed-due-to-null/84787 "2019-11-14T15:01:43Z")
I ran into this issue using Android Studio 3.5.1. I was using a test device (Nexus 7ā€¦ yeah, yeah. I know). I updated the ROM on it to Android 9. When I tried running the very first app, it installed and ran fine. When Iā€¦ --- ## [I have encountered an odd test failure](https://forums.kodeco.com/t/i-have-encountered-an-odd-test-failure/84778)
**Author:** [@roryhinnen](https://forums.kodeco.com/u/roryhinnen)\ **Replies:** 1\ **Last updated:** [November 14, 2019, 2:30pm UTC](https://forums.kodeco.com/t/i-have-encountered-an-odd-test-failure/84778 "2019-11-14T14:30:33Z")
Iā€™m getting an odd failure in testController\_whenCreated\_buttonLabelIsStart(). Changes in StepCountController sometimes caused this function to fail the test. Iā€™m currently working through Chapter 3. Attempting to resolā€¦ --- ## [Errata - Chapter 11 references to chapter 8](https://forums.kodeco.com/t/errata-chapter-11-references-to-chapter-8/84593)
**Author:** [@nyquist](https://forums.kodeco.com/u/nyquist)\ **Replies:** 1\ **Last updated:** [November 14, 2019, 1:40pm UTC](https://forums.kodeco.com/t/errata-chapter-11-references-to-chapter-8/84593 "2019-11-14T13:40:23Z")
Chapter 11, page 232, states we ā€˜should follow the installation instructions found in chapter 8, ā€œRESTful Networkingā€ to install Vapor.ā€™ A search of ā€œVaporā€ in the book only yield page 232, chapter 8 does not reference Vā€¦ --- ## [Apprentice iOS developer, an introduction](https://forums.kodeco.com/t/apprentice-ios-developer-an-introduction/84275)
**Author:** [@sdv711](https://forums.kodeco.com/u/sdv711)\ **Replies:** 1\ **Last updated:** [November 14, 2019, 11:08am UTC](https://forums.kodeco.com/t/apprentice-ios-developer-an-introduction/84275 "2019-11-14T11:08:00Z")
Hey guys. After scrounging on the web for a while Iā€™ve come across Rayā€™s website and books along with itā€™s high recommendations everywhere I looked. I bought the book yesterday and Iā€™m quite impressed! Itā€™s clear, concisā€¦ --- ## [Index problems in some projects](https://forums.kodeco.com/t/index-problems-in-some-projects/86350)
**Author:** [@knight556](https://forums.kodeco.com/u/knight556)\ **Replies:** 9\ **Last updated:** [November 13, 2019, 5:09am UTC](https://forums.kodeco.com/t/index-problems-in-some-projects/86350 "2019-11-13T05:09:55Z")
Hi guys, any idea why some of the projects are having these issues? (see images). I did a frame capture and it seems that one of the triangle indices is a crazy huge number. Possibly a problem loading the obj file? Tā€¦ --- ## [Core Data in Combine](https://forums.kodeco.com/t/core-data-in-combine/87799)
**Author:** [@gjzwart](https://forums.kodeco.com/u/gjzwart)\ **Replies:** 2\ **Last updated:** [November 12, 2019, 6:54am UTC](https://forums.kodeco.com/t/core-data-in-combine/87799 "2019-11-12T06:54:02Z")
Does the book cover Core Data with Combine? --- ## [Why is guard tail !== node else going into the scope](https://forums.kodeco.com/t/why-is-guard-tail-node-else-going-into-the-scope/87717)
**Author:** [@mcneils](https://forums.kodeco.com/u/mcneils)\ **Replies:** 1\ **Last updated:** [November 12, 2019, 2:07am UTC](https://forums.kodeco.com/t/why-is-guard-tail-node-else-going-into-the-scope/87717 "2019-11-12T02:07:47Z")
In the LinkedList section, when you are inserting a node at the tail you have the case guard tail !== node else { append(value) //add to end of the list by calling append func return } what doesā€¦ --- ## [Stuck with building process in Deploying with AWS](https://forums.kodeco.com/t/stuck-with-building-process-in-deploying-with-aws/87538)
**Author:** [@thammaporn](https://forums.kodeco.com/u/thammaporn)\ **Replies:** 2\ **Last updated:** [November 9, 2019, 4:33am UTC](https://forums.kodeco.com/t/stuck-with-building-process-in-deploying-with-aws/87538 "2019-11-09T04:33:20Z")
Iā€™m following by the tutorial regarding deploying my vapor project with AWS. But stop me while run the command ā€œswift build -c releaseā€ . It stop at line " Fetching https://github.com/brokenhandsio/cmart-gfm.git " as ā€¦ --- ## [Do job in background when app is killed](https://forums.kodeco.com/t/do-job-in-background-when-app-is-killed/87176)
**Author:** [@tkallioras](https://forums.kodeco.com/u/tkallioras)\ **Replies:** 1\ **Last updated:** [November 8, 2019, 3:57pm UTC](https://forums.kodeco.com/t/do-job-in-background-when-app-is-killed/87176 "2019-11-08T15:57:03Z")
I read this book and I try to implement the following scenario. When my app receives a push notification, I want to do some work in the background. I have managed to do so when the app is in foreground or in backgroundā€¦ --- ## [The Download button don't download all the assets](https://forums.kodeco.com/t/the-download-button-dont-download-all-the-assets/79536)
**Author:** [@rafaelriva](https://forums.kodeco.com/u/rafaelriva)\ **Replies:** 3\ **Last updated:** [November 7, 2019, 6:08am UTC](https://forums.kodeco.com/t/the-download-button-dont-download-all-the-assets/79536 "2019-11-07T06:08:07Z")
I have this problem since the book was officially launched. When I click download at the store page it downloads both book format and the assets folder, but only chapter 14 onwardsā€¦ I wasnā€™t able to find the resources ā€¦ --- ## [Deploying to Vapor Cloud fails while trying to load organizations](https://forums.kodeco.com/t/deploying-to-vapor-cloud-fails-while-trying-to-load-organizations/87275)
**Author:** [@thedan84](https://forums.kodeco.com/u/thedan84)\ **Replies:** 1\ **Last updated:** [November 6, 2019, 3:10pm UTC](https://forums.kodeco.com/t/deploying-to-vapor-cloud-fails-while-trying-to-load-organizations/87275 "2019-11-06T15:10:26Z")
Hello all. When trying to deploy the TIL app to Vapor Cloud it fails with the following error: Note that I have an organisation set up in Vapor Cloud and I have provided an SSH key to access my GitHub repo, is there ā€¦ --- ## [Chapter 11 - Testing on Linux fails (possibly outdated dependencies?)](https://forums.kodeco.com/t/chapter-11-testing-on-linux-fails-possibly-outdated-dependencies/86113)
**Author:** [@thedan84](https://forums.kodeco.com/u/thedan84)\ **Replies:** 5\ **Last updated:** [November 6, 2019, 2:53pm UTC](https://forums.kodeco.com/t/chapter-11-testing-on-linux-fails-possibly-outdated-dependencies/86113 "2019-11-06T14:53:00Z")
Hello all. Iā€™ve got a weird error when running docker-compose up --abort-on-container-exit. Seems like some dependencies arenā€™t compatible or something. Could someone please explain whatā€™s going on and maybe suggest a fiā€¦ --- ## [Using user UUID on other StoryBoards! Help!](https://forums.kodeco.com/t/using-user-uuid-on-other-storyboards-help/86167)
**Author:** [@erdmzgr](https://forums.kodeco.com/u/erdmzgr)\ **Replies:** 1\ **Last updated:** [November 4, 2019, 2:47pm UTC](https://forums.kodeco.com/t/using-user-uuid-on-other-storyboards-help/86167 "2019-11-04T14:47:16Z")
Hi, i am developing an iOS App like memorizing english words. My problem is when the user login on iOS App login screen, the user actually has an UUID, and i cant use this UUID for other story boards, i want api/userā€¦ --- ## [Chapter 9 starter doesn't compile on Xcode 11.2 beta (11B41)](https://forums.kodeco.com/t/chapter-9-starter-doesnt-compile-on-xcode-11-2-beta-11b41/86452)
**Author:** [@danielbyon](https://forums.kodeco.com/u/danielbyon)\ **Replies:** 4\ **Last updated:** [November 4, 2019, 12:34am UTC](https://forums.kodeco.com/t/chapter-9-starter-doesnt-compile-on-xcode-11-2-beta-11b41/86452 "2019-11-04T00:34:28Z")
Get a Type of expression is ambiguous without more context compiler error when opening the starter project and building. --- ## [Zombie Conga , Moving the zombie](https://forums.kodeco.com/t/zombie-conga-moving-the-zombie/85780)
**Author:** [@game\_gecko](https://forums.kodeco.com/u/game_gecko)\ **Replies:** 3\ **Last updated:** [October 30, 2019, 2:24am UTC](https://forums.kodeco.com/t/zombie-conga-moving-the-zombie/85780 "2019-10-30T02:24:05Z")
I bought 2D iOS & tvOs Games by tutorials a long time ago, and now I am reading it. I am disappointed there wonā€™t be any new updates! So, anyway I had the same problem that the zombie wonā€™t move across the screen, it juā€¦ --- ## [SwiftUI Problem with view navigation](https://forums.kodeco.com/t/swiftui-problem-with-view-navigation/82202)
**Author:** [@mazurick](https://forums.kodeco.com/u/mazurick)\ **Replies:** 3\ **Last updated:** [October 30, 2019, 1:43am UTC](https://forums.kodeco.com/t/swiftui-problem-with-view-navigation/82202 "2019-10-30T01:43:06Z")
Hello, I hope this message finds you well. I am learning SwiftUI. All I want to do at this stage is navigate between two views without using the NavigationView. How might I adjust my code to allow me to click on the buā€¦ --- ## [Chapter 4 - Value of type 'Double' has no member 'value'](https://forums.kodeco.com/t/chapter-4-value-of-type-double-has-no-member-value/86460)
**Author:** [@danieleciti](https://forums.kodeco.com/u/danieleciti)\ **Replies:** 1\ **Last updated:** [October 29, 2019, 12:54pm UTC](https://forums.kodeco.com/t/chapter-4-value-of-type-double-has-no-member-value/86460 "2019-10-29T12:54:36Z")
Hi, Iā€™m experiencing this error inside the Coordinator class inside the valueChanged @objc func: Value of type ā€˜Doubleā€™ has no member ā€˜valueā€™. --- ## [Textbox, label, selectbox on metal 3d](https://forums.kodeco.com/t/textbox-label-selectbox-on-metal-3d/86435)
**Author:** [@levanlong](https://forums.kodeco.com/u/levanlong)\ **Replies:** 1\ **Last updated:** [October 29, 2019, 2:28am UTC](https://forums.kodeco.com/t/textbox-label-selectbox-on-metal-3d/86435 "2019-10-29T02:28:41Z")
Hi, I donā€™t find anywhere even on metal by tutorial how to manage textbox or label to add them on 3d metal ? is there any existing lib or we must create them ? or maybe we can used 2d from swift to incoporated them on sā€¦ --- ## [GameController button B and menu](https://forums.kodeco.com/t/gamecontroller-button-b-and-menu/84984)
**Author:** [@jan-willem](https://forums.kodeco.com/u/jan-willem)\ **Replies:** 2\ **Last updated:** [October 26, 2019, 8:12pm UTC](https://forums.kodeco.com/t/gamecontroller-button-b-and-menu/84984 "2019-10-26T20:12:02Z")
Using XCode and SpriteKit and connecting and using the extendedGamePad. There seems to be the problem that when ever i use the B of Menu button, my program stops and tvOS returns to itā€™s menu. So the menu button will bā€¦ --- ## [Chapter 3: swiftUI error message at deceptive location](https://forums.kodeco.com/t/chapter-3-swiftui-error-message-at-deceptive-location/86198)
**Author:** [@darrellr](https://forums.kodeco.com/u/darrellr)\ **Replies:** 1\ **Last updated:** [October 26, 2019, 4:14am UTC](https://forums.kodeco.com/t/chapter-3-swiftui-error-message-at-deceptive-location/86198 "2019-10-26T04:14:13Z")
A general warning that swiftUI error messages may be at very deceptive locations. In the first code sample below I left the ā€œlā€ off of ā€œ.padding(.horizontal)ā€ at the end of my ColorSlider VStack. That resulted in a ā€œboā€¦ --- ## [Challenges solution for paperback buyers?](https://forums.kodeco.com/t/challenges-solution-for-paperback-buyers/86103)
**Author:** [@philport](https://forums.kodeco.com/u/philport)\ **Replies:** 2\ **Last updated:** [October 25, 2019, 5:33pm UTC](https://forums.kodeco.com/t/challenges-solution-for-paperback-buyers/86103 "2019-10-25T17:33:57Z")
The book is really great but does not contain the solutions for the challenges. Is there a place on the web where I could get these? Iā€™d like to make sur my code is Ok before going forward. I have the 2D Apple Games 1ā€¦ --- ## [Zstack causes misalignment of Vstacks](https://forums.kodeco.com/t/zstack-causes-misalignment-of-vstacks/83440)
**Author:** [@rknabb](https://forums.kodeco.com/u/rknabb)\ **Replies:** 6\ **Last updated:** [October 23, 2019, 12:02pm UTC](https://forums.kodeco.com/t/zstack-causes-misalignment-of-vstacks/83440 "2019-10-23T12:02:44Z")
Hi all, While doing the RGBullsEye tutorial in chapter 3, when I add the Text(ā€œ60ā€) line inside the Zstack shown on page 48, it causes my target and guess colors in the Vstacks above to become misaligned - the guess oneā€¦ --- ## [PassthroughSubject not required - Chapter 3](https://forums.kodeco.com/t/passthroughsubject-not-required-chapter-3/84336)
**Author:** [@createch](https://forums.kodeco.com/u/createch)\ **Replies:** 1\ **Last updated:** [October 23, 2019, 12:00pm UTC](https://forums.kodeco.com/t/passthroughsubject-not-required-chapter-3/84336 "2019-10-23T12:00:47Z")
let objectWillChange = PassthroughSubect\() and the objectWillChange.send(self) in the TimeCounter class are no longer necessary. Simply mark counter with the propertyWrapper @Published @Publishedā€¦ --- ## [Chapter 4- NavigationView hides ContentView](https://forums.kodeco.com/t/chapter-4-navigationview-hides-contentview/84976)
**Author:** [@iosdevelopr](https://forums.kodeco.com/u/iosdevelopr)\ **Replies:** 1\ **Last updated:** [October 23, 2019, 11:43am UTC](https://forums.kodeco.com/t/chapter-4-navigationview-hides-contentview/84976 "2019-10-23T11:43:42Z")
It looks like both in the final project and my own, adding a NavigationView to the body of ContentView causes it to disappear from the screen. ViewDebugger seems to indicate that a UIHostingController exists, but nothingā€¦ --- ## [SwiftUI Chapter 12 Gestures](https://forums.kodeco.com/t/swiftui-chapter-12-gestures/85254)
**Author:** [@tnewton42](https://forums.kodeco.com/u/tnewton42)\ **Replies:** 1\ **Last updated:** [October 21, 2019, 11:20pm UTC](https://forums.kodeco.com/t/swiftui-chapter-12-gestures/85254 "2019-10-21T23:20:55Z")
It appears that in Swift UI when there are two gestures added to a view, only the first one is implemented. In the CardView.swift body if I create gestures in this order .gesture(TapGesture() .onEnded { ā€¦ --- ## [Is there any text controls event in Swift ui](https://forums.kodeco.com/t/is-there-any-text-controls-event-in-swift-ui/85267)
**Author:** [@yangwulong1978](https://forums.kodeco.com/u/yangwulong1978)\ **Replies:** 3\ **Last updated:** [October 21, 2019, 1:05pm UTC](https://forums.kodeco.com/t/is-there-any-text-controls-event-in-swift-ui/85267 "2019-10-21T13:05:14Z")
as for textfield in storyboard, there are many event we can use, like Edit changed, Edit Did Endā€¦ etc I am wondering for text in swiftui, is there any similiar event, text control can trigger? --- ## [Official V0.1 Errata Thread](https://forums.kodeco.com/t/official-v0-1-errata-thread/83645)
**Author:** [@chrisrazeware](https://forums.kodeco.com/u/chrisrazeware)\ **Replies:** 2\ **Last updated:** [October 21, 2019, 1:04pm UTC](https://forums.kodeco.com/t/official-v0-1-errata-thread/83645 "2019-10-21T13:04:33Z")
Found an issue in the v0.1 release of the book? Add it here! --- ## [Coordinator Pattern (c. 23): How to pass data back to parent/ sibling coordinator](https://forums.kodeco.com/t/coordinator-pattern-c-23-how-to-pass-data-back-to-parent-sibling-coordinator/83314)
**Author:** [@alekplay](https://forums.kodeco.com/u/alekplay)\ **Replies:** 3\ **Last updated:** [October 20, 2019, 11:46pm UTC](https://forums.kodeco.com/t/coordinator-pattern-c-23-how-to-pass-data-back-to-parent-sibling-coordinator/83314 "2019-10-20T23:46:44Z")
Hi all, If Iā€™m using the coordinator pattern as outlined in chapter 23 of the Design Patterns by Tutorials book, how do I go about passing data back through to a parent coordinator from a child coordinator? Imagine a sā€¦ [Previous page](https://forums.kodeco.com/c/books/6.md?page=82) [Next page](https://forums.kodeco.com/c/books/6.md?page=84)