# šŸ“š Official Books **URL:** https://forums.kodeco.com/c/books/6.md?page=108 [Latest](https://forums.kodeco.com/latest.md) Ā· [Categories](https://forums.kodeco.com/categories.md) Ā· [Tags](https://forums.kodeco.com/tags.md) **Page:** 109 --- ## [File /Applications/Xcode.app/Contents/MacOS/Xcode not working](https://forums.kodeco.com/t/file-applications-xcode-app-contents-macos-xcode-not-working/54605)
**Author:** [@williamlynn](https://forums.kodeco.com/u/williamlynn)\ **Replies:** 4\ **Last updated:** [November 5, 2018, 4:57pm UTC](https://forums.kodeco.com/t/file-applications-xcode-app-contents-macos-xcode-not-working/54605 "2018-11-05T16:57:32Z")
Using Xcode 10.1, Mojave 10.14.1 Page 26 of the book says to use ā€œfile /Applications/Xcode.app/Contents/MacOS/Xcodeā€ but it returns a error: error: unable to find executable for ā€˜/Applications/Xcode.app/Contents/MacOSā€¦ --- ## [Table of Contents Missing in PDF Version of the Book](https://forums.kodeco.com/t/table-of-contents-missing-in-pdf-version-of-the-book/51785)
**Author:** [@may\_ber00t](https://forums.kodeco.com/u/may_ber00t)\ **Replies:** 6\ **Last updated:** [October 30, 2018, 8:17pm UTC](https://forums.kodeco.com/t/table-of-contents-missing-in-pdf-version-of-the-book/51785 "2018-10-30T20:17:43Z")
Hello, I was curious if the table of contents will be added for the PDF version of the book? I prefer to read the book in PDF form and table of contents would help a lot. Otherwise I absolutely love all the books you guyā€¦ --- ## [Chapter 3: Behavior Subjects Example Error](https://forums.kodeco.com/t/chapter-3-behavior-subjects-example-error/54482)
**Author:** [@ariopolis](https://forums.kodeco.com/u/ariopolis)\ **Replies:** 6\ **Last updated:** [November 5, 2018, 2:45pm UTC](https://forums.kodeco.com/t/chapter-3-behavior-subjects-example-error/54482 "2018-11-05T14:45:22Z")
In the func for CustomStringConvertible, I am getting an error with the following line of code: print(label, event.element ?? event.error ?? event) I get the following error: Playground execution failed: error: RxSwiā€¦ --- ## [Drawing to Multiple MTKViews](https://forums.kodeco.com/t/drawing-to-multiple-mtkviews/54557)
**Author:** [@johnlobe](https://forums.kodeco.com/u/johnlobe)\ **Replies:** 2\ **Last updated:** [November 4, 2018, 3:07pm UTC](https://forums.kodeco.com/t/drawing-to-multiple-mtkviews/54557 "2018-11-04T15:07:22Z")
Having read through Chapter 14 ( Multipass and Deferred Rendering ), I am intrigued by the possibility of viewing several textures at once in a window while an app is rendering and combining them. I have created a View ā€¦ --- ## [Ch 14 User Location and Permission](https://forums.kodeco.com/t/ch-14-user-location-and-permission/52095)
**Author:** [@williammr](https://forums.kodeco.com/u/williammr)\ **Replies:** 4\ **Last updated:** [November 3, 2018, 12:13pm UTC](https://forums.kodeco.com/t/ch-14-user-location-and-permission/52095 "2018-11-03T12:13:17Z")
Hello, I have an error in the function getCurrentLocation. private fun getCurrentLocation() { if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS\_FINE\_LOCATION) != PackageManager.PERMISSION\_GRANTEā€¦ --- ## [ARKit book problem](https://forums.kodeco.com/t/arkit-book-problem/48249)
**Author:** [@askarstone](https://forums.kodeco.com/u/askarstone)\ **Replies:** 2\ **Last updated:** [November 3, 2018, 10:26am UTC](https://forums.kodeco.com/t/arkit-book-problem/48249 "2018-11-03T10:26:20Z")
I stuck with ARKit book! The author didnā€™t bother himself to at least explain how to use xcode. Could anybody help with this? Looks like my layout! is different from the authorā€™s one. I dont know how to drag and drop ā€¦ --- ## [Unable to download the source code file for Swift-apprentic](https://forums.kodeco.com/t/unable-to-download-the-source-code-file-for-swift-apprentic/45874)
**Author:** [@sakarsh](https://forums.kodeco.com/u/sakarsh)\ **Replies:** 5\ **Last updated:** [November 2, 2018, 9:34pm UTC](https://forums.kodeco.com/t/unable-to-download-the-source-code-file-for-swift-apprentic/45874 "2018-11-02T21:34:14Z")
Continuing the discussion from Where are the resource and code files for the sixth addition?: https://store.raywenderlich.com/products/ios-apprentice-source-code This link does not show the download button to download ā€¦ --- ## [Book error. UiBindingObserver is deprecated](https://forums.kodeco.com/t/book-error-uibindingobserver-is-deprecated/37628)
**Author:** [@mirceagrelus](https://forums.kodeco.com/u/mirceagrelus)\ **Replies:** 1\ **Last updated:** [November 2, 2018, 7:23pm UTC](https://forums.kodeco.com/t/book-error-uibindingobserver-is-deprecated/37628 "2018-11-02T19:23:27Z")
The book often references UIBindingObserver, but thatā€™s deprecated. Binder should be used instead --- ## [Unity Games 2nd Edition stuck at pg 38!](https://forums.kodeco.com/t/unity-games-2nd-edition-stuck-at-pg-38/43597)
**Author:** [@tuscolamatt](https://forums.kodeco.com/u/tuscolamatt)\ **Replies:** 7\ **Last updated:** [November 2, 2018, 4:31pm UTC](https://forums.kodeco.com/t/unity-games-2nd-edition-stuck-at-pg-38/43597 "2018-11-02T16:31:47Z")
After importing the package, the BobbleArena (and 3 others) Model has a generic icon that wonā€™t move into the scene. I have the latest Unity and Blender installed on a coreI7 laptop - win10. Any help would be great.ā€¦ --- ## [Running multiple Tests fails (running one by one succeeds)](https://forums.kodeco.com/t/running-multiple-tests-fails-running-one-by-one-succeeds/54287)
**Author:** [@bennokress](https://forums.kodeco.com/u/bennokress)\ **Replies:** 3\ **Last updated:** [November 2, 2018, 9:16am UTC](https://forums.kodeco.com/t/running-multiple-tests-fails-running-one-by-one-succeeds/54287 "2018-11-02T09:16:22Z")
Iā€™m following Chapter 11 - Testing on a company project, so itā€™s not the TIL App, but the structure for this particular part is basically the same. When testing my Users API, I always get a success on the first call and ā€¦ --- ## [RxSwift resources not released](https://forums.kodeco.com/t/rxswift-resources-not-released/42245)
**Author:** [@zishanj](https://forums.kodeco.com/u/zishanj)\ **Replies:** 0\ **Last updated:** [May 4, 2018, 3:12pm UTC](https://forums.kodeco.com/t/rxswift-resources-not-released/42245 "2018-05-04T15:12:03Z")
After studying the book I have tried to create a custom player component in xib file that includes buttons like play, pause, forward, backward etc. I have then used @IBDesignable class named Player that initializes this ā€¦ --- ## [Make the DetailView appearing animation on iPad a bit cooler](https://forums.kodeco.com/t/make-the-detailview-appearing-animation-on-ipad-a-bit-cooler/41956)
**Author:** [@tenryu](https://forums.kodeco.com/u/tenryu)\ **Replies:** 0\ **Last updated:** [April 26, 2018, 3:38am UTC](https://forums.kodeco.com/t/make-the-detailview-appearing-animation-on-ipad-a-bit-cooler/41956 "2018-04-26T03:38:20Z")
Well, thanks to the useful topics here in the forum Iā€™ve found out how to make the DetailView appear animated on the iPad. But as book says, ā€œApple is the king of animationsā€, and the exercise itself offer us to make theā€¦ --- ## [Lots of New Things to Check Out!](https://forums.kodeco.com/t/lots-of-new-things-to-check-out/52249)
**Author:** [@johnlobe](https://forums.kodeco.com/u/johnlobe)\ **Replies:** 1\ **Last updated:** [November 1, 2018, 10:18pm UTC](https://forums.kodeco.com/t/lots-of-new-things-to-check-out/52249 "2018-11-01T22:18:30Z")
Iā€™m not sure that this qualifies as a ā€˜Topicā€™, but I am just looking through the final chapters and sample projects for Metal by Tutorials - Super fun, thanks for all of the work and creativity! Time to put my phone on ā€¦ --- ## [None of the starter projects will build/run properly](https://forums.kodeco.com/t/none-of-the-starter-projects-will-build-run-properly/47412)
**Author:** [@gordonmzx](https://forums.kodeco.com/u/gordonmzx)\ **Replies:** 6\ **Last updated:** [November 1, 2018, 7:12am UTC](https://forums.kodeco.com/t/none-of-the-starter-projects-will-build-run-properly/47412 "2018-11-01T07:12:05Z")
Iā€™ve followed all the instructions and double checked everything twice. I have the latest version of Cocoapods installed and I am using Xcode 9.4.1, Swift 4 on a Mac running MacOS 10.13.5 . So far the projects fro chapteā€¦ --- ## [Dog Walk tutorial](https://forums.kodeco.com/t/dog-walk-tutorial/36652)
**Author:** [@joachimfh](https://forums.kodeco.com/u/joachimfh)\ **Replies:** 1\ **Last updated:** [November 1, 2018, 3:46am UTC](https://forums.kodeco.com/t/dog-walk-tutorial/36652 "2018-11-01T03:46:29Z")
Hi, I am following your Dog Walk tutorial, and try implement it in my own project. However my main storyboard is different because I have a UITabBarController. So I found out that I need to rewrite the following: func aā€¦ --- ## [Chapter 6.seems somehow confusing](https://forums.kodeco.com/t/chapter-6-seems-somehow-confusing/35750)
**Author:** [@simons1994](https://forums.kodeco.com/u/simons1994)\ **Replies:** 1\ **Last updated:** [November 1, 2018, 3:41am UTC](https://forums.kodeco.com/t/chapter-6-seems-somehow-confusing/35750 "2018-11-01T03:41:51Z")
Somehow confusing(( Thanks:blush: everyone in advance. Why do we need NotesListViewController+Additions.h file in the starter project? Is it really necessary?\` if it necessary then why? @interface NotesListViewControllā€¦ --- ## [Core Data in a UITabBarController](https://forums.kodeco.com/t/core-data-in-a-uitabbarcontroller/36721)
**Author:** [@joachimfh](https://forums.kodeco.com/u/joachimfh)\ **Replies:** 1\ **Last updated:** [November 1, 2018, 3:29am UTC](https://forums.kodeco.com/t/core-data-in-a-uitabbarcontroller/36721 "2018-11-01T03:29:42Z")
I am using your Dog Walk tutorial as my starting point for my own project. But my app keeps crashing when I fetch data in the ViewController, Probably because I have a UITabBarController between my UINavigationControllerā€¦ --- ## [Screen Goes Blank after Installing DatePicker in Chapter 20](https://forums.kodeco.com/t/screen-goes-blank-after-installing-datepicker-in-chapter-20/54282)
**Author:** [@stevelhunt](https://forums.kodeco.com/u/stevelhunt)\ **Replies:** 1\ **Last updated:** [October 31, 2018, 2:41pm UTC](https://forums.kodeco.com/t/screen-goes-blank-after-installing-datepicker-in-chapter-20/54282 "2018-10-31T14:41:59Z")
In Chapter 20, Local Noptifications, right after I install the DatePicker in Storyboard and run the app, when a new item is entered in a CheckList ( Press the + key), the DatePicker momentarily shows and then the screen ā€¦ --- ## [What does "out of the blue" mean?](https://forums.kodeco.com/t/what-does-out-of-the-blue-mean/48417)
**Author:** [@woorazilboy](https://forums.kodeco.com/u/woorazilboy)\ **Replies:** 3\ **Last updated:** [September 13, 2018, 9:47am UTC](https://forums.kodeco.com/t/what-does-out-of-the-blue-mean/48417 "2018-09-13T09:47:33Z")
in page 23, Using Swift requires much more typing. In addition, when stopping the debugger out of the blue, or on Objective-C code, LLDB will default to Objective-C. and page 74, You stopped the debugger out of the blā€¦ --- ## [Ch. 39 Landscape](https://forums.kodeco.com/t/ch-39-landscape/54214)
**Author:** [@bkotis](https://forums.kodeco.com/u/bkotis)\ **Replies:** 1\ **Last updated:** [October 31, 2018, 3:42am UTC](https://forums.kodeco.com/t/ch-39-landscape/54214 "2018-10-31T03:42:01Z")
Iā€™m trying to add a case for the iPhone XS Max to the switch statement that is within the tileButtons(\_ searchResults: ) method in the LandscapeViewController. Does anyone have this case for the XS Max? Items in the caā€¦ --- ## [Update for Xcode 10 and iOS 12? If so, best estimate when to expect it](https://forums.kodeco.com/t/update-for-xcode-10-and-ios-12-if-so-best-estimate-when-to-expect-it/53784)
**Author:** [@lou](https://forums.kodeco.com/u/lou)\ **Replies:** 1\ **Last updated:** [October 31, 2018, 1:23am UTC](https://forums.kodeco.com/t/update-for-xcode-10-and-ios-12-if-so-best-estimate-when-to-expect-it/53784 "2018-10-31T01:23:16Z")
Great book looking forward to more updates for games books --- ## [Chapter 10 Antialiasing section](https://forums.kodeco.com/t/chapter-10-antialiasing-section/53559)
**Author:** [@12o1v](https://forums.kodeco.com/u/12o1v)\ **Replies:** 5\ **Last updated:** [October 31, 2018, 12:57am UTC](https://forums.kodeco.com/t/chapter-10-antialiasing-section/53559 "2018-10-31T00:57:31Z")
When I toggle antialiasing on, my view just flickers, badly. Also, the view becomes almost unresponsive, it wonā€™t scale and other toggle keys stop working (like ā€˜tā€™ in this example). It looks like the flicker is around ā€¦ --- ## [Workaround For Gradle Errors](https://forums.kodeco.com/t/workaround-for-gradle-errors/53506)
**Author:** [@designatednerd](https://forums.kodeco.com/u/designatednerd)\ **Replies:** 1\ **Last updated:** [October 30, 2018, 11:49pm UTC](https://forums.kodeco.com/t/workaround-for-gradle-errors/53506 "2018-10-30T23:49:00Z")
Hey folks, Iā€™m one of the Tech Editors. Weā€™ve had some people getting this pop-up when trying to open existing projects: This is because newer versions of Gradle and Kotlin have come out since the book was published. ā€¦ --- ## [Chapter 1 - System Image API 28?](https://forums.kodeco.com/t/chapter-1-system-image-api-28/53275)
**Author:** [@ttrrooyy](https://forums.kodeco.com/u/ttrrooyy)\ **Replies:** 2\ **Last updated:** [October 30, 2018, 10:55pm UTC](https://forums.kodeco.com/t/chapter-1-system-image-api-28/53275 "2018-10-30T22:55:05Z")
I am just starting with this book. There is now an option to download API 28. Does it matter if I use this instead of API 27? --- ## [Stuck at Home base (Hello Metal) on](https://forums.kodeco.com/t/stuck-at-home-base-hello-metal-on/44646)
**Author:** [@thehumbleog](https://forums.kodeco.com/u/thehumbleog)\ **Replies:** 14\ **Last updated:** [October 30, 2018, 10:41pm UTC](https://forums.kodeco.com/t/stuck-at-home-base-hello-metal-on/44646 "2018-10-30T22:41:33Z")
Hi everyone, Just got the book and very excited to start trying things out, however I canā€™t get past the very first sample - Iā€™ve followed the coding to the T and canā€™t seem to render the red circle in Playground, thereā€¦ --- ## [WatchOS4 3rd edition -- tutorial source code is missing?](https://forums.kodeco.com/t/watchos4-3rd-edition-tutorial-source-code-is-missing/53096)
**Author:** [@markw](https://forums.kodeco.com/u/markw)\ **Replies:** 2\ **Last updated:** [October 30, 2018, 10:00pm UTC](https://forums.kodeco.com/t/watchos4-3rd-edition-tutorial-source-code-is-missing/53096 "2018-10-30T22:00:13Z")
Hi. Page 22 says to go here for to download source code: https://www.raywenderlich.com/store/watchos-by-tutorials/source-code File not found. Where should I be looking for these files? --- ## [Can you access the Vapor Server from another device when running locally?](https://forums.kodeco.com/t/can-you-access-the-vapor-server-from-another-device-when-running-locally/52811)
**Author:** [@hodgins](https://forums.kodeco.com/u/hodgins)\ **Replies:** 2\ **Last updated:** [October 30, 2018, 9:38pm UTC](https://forums.kodeco.com/t/can-you-access-the-vapor-server-from-another-device-when-running-locally/52811 "2018-10-30T21:38:29Z")
I canā€™t seem to access the server from another device when running locally. It works on localhost but if I try to access from a different device it wonā€™t work. Donā€™t think itā€™s my router as it works fine if I run simplā€¦ --- ## [Vapor Cloud 2 Alpha launched](https://forums.kodeco.com/t/vapor-cloud-2-alpha-launched/52920)
**Author:** [@jonasschwartz](https://forums.kodeco.com/u/jonasschwartz)\ **Replies:** 1\ **Last updated:** [October 30, 2018, 9:23pm UTC](https://forums.kodeco.com/t/vapor-cloud-2-alpha-launched/52920 "2018-10-30T21:23:19Z")
For people interested in trying out the latest and greatest, we just launched Vapor Cloud 2 Alpha. Vapor Cloud 2 is a huge improvement, allowing for a lot of customization. So far itā€™s possible to setup and deploy your ā€¦ --- ## [MVVM Pattern and view](https://forums.kodeco.com/t/mvvm-pattern-and-view/53033)
**Author:** [@lema10](https://forums.kodeco.com/u/lema10)\ **Replies:** 2\ **Last updated:** [October 30, 2018, 9:21pm UTC](https://forums.kodeco.com/t/mvvm-pattern-and-view/53033 "2018-10-30T21:21:10Z")
Hi. Iā€™m just starting my programming adventure, Iā€™m asking for your understanding. My question is: Why in the case of the MVVM design pattern you do not separate the view as in the case of MVC. --- ## [Update labels, page 533 of PDF iOS Apprentice v7, Get Locations](https://forums.kodeco.com/t/update-labels-page-533-of-pdf-ios-apprentice-v7-get-locations/52474)
**Author:** [@seanec](https://forums.kodeco.com/u/seanec)\ **Replies:** 2\ **Last updated:** [October 30, 2018, 8:53pm UTC](https://forums.kodeco.com/t/update-labels-page-533-of-pdf-ios-apprentice-v7-get-locations/52474 "2018-10-30T20:53:43Z")
My app has been building perfectly with no errors or warnings. I added the final updateLabels() to the viewDidLoad and there are still no errors but my ā€œGet My Locationā€ button has gone missing. At first I thought perhā€¦ [Previous page](https://forums.kodeco.com/c/books/6.md?page=107) [Next page](https://forums.kodeco.com/c/books/6.md?page=109)