Chapter 13: Adding extensions to Checklist

📚 Official Books iOS Apprentice
1

Problem 1:

When I open resource folder for chapter 13 it looks like that:
Screenshot 2019-12-27 at 16.25.03

So there is no folder extensions.

Workaround for problem 1:
In same directory where resource folder is located, there is another folder called source code. There you can navigate to 13-Editing Items → chapter-13-final.zip. If you unzip this folder you will get content of final project for Chapter 13. I used this extensions folder that is located in Checklist folder of unzipped file and copied it to my project. And yes I checked “Copy items if needed”, “Create groups” and “Checklist” target . I think this shouldn’t make any effect for my next problem.

Problem 2:

Now folder extensions is copied to my project, so now I change ForEach loop to what it says in the book. Then I run the project and I get this two errors:
Screenshot 2019-12-27 at 15.48.23

Here is error log for “Segmentation fault: 11”:

Stack dump:
0. Program arguments: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift -frontend -c /Users/lukacefarin/Documents/Tutorials/iOS Apprentice/My Exercises/TodoApp/TodoApp/Checklist.swift /Users/lukacefarin/Documents/Tutorials/iOS Apprentice/My Exercises/TodoApp/TodoApp/AppDelegate.swift -primary-file /Users/lukacefarin/Documents/Tutorials/iOS Apprentice/My Exercises/TodoApp/TodoApp/Extensions/ForEach.swift -primary-file /Users/lukacefarin/Documents/Tutorials/iOS Apprentice/My Exercises/TodoApp/TodoApp/Extensions/IndexedCollection.swift /Users/lukacefarin/Documents/Tutorials/iOS Apprentice/My Exercises/TodoApp/TodoApp/SceneDelegate.swift /Users/lukacefarin/Documents/Tutorials/iOS Apprentice/My Exercises/TodoApp/TodoApp/RowView.swift /Users/lukacefarin/Documents/Tutorials/iOS Apprentice/My Exercises/TodoApp/TodoApp/ChecklistView.swift /Users/lukacefarin/Documents/Tutorials/iOS Apprentice/My Exercises/TodoApp/TodoApp/EditChecklistItemView.swift /Users/lukacefarin/Documents/Tutorials/iOS Apprentice/My Exercises/TodoApp/TodoApp/NewChecklistItemView.swift /Users/lukacefarin/Documents/Tutorials/iOS Apprentice/My Exercises/TodoApp/TodoApp/ChecklistItem.swift /Users/lukacefarin/Documents/Tutorials/iOS Apprentice/My Exercises/TodoApp/TodoApp/Extensions/Binding.swift -emit-module-path /Users/lukacefarin/Library/Developer/Xcode/DerivedData/TodoApp-ebkeemjdmphbmlcpxrgboaqzyfyw/Build/Intermediates.noindex/TodoApp.build/Debug-iphonesimulator/TodoApp.build/Objects-normal/x86_64/ForEach~partial.swiftmodule -emit-module-path /Users/lukacefarin/Library/Developer/Xcode/DerivedData/TodoApp-ebkeemjdmphbmlcpxrgboaqzyfyw/Build/Intermediates.noindex/TodoApp.build/Debug-iphonesimulator/TodoApp.build/Objects-normal/x86_64/IndexedCollection~partial.swiftmodule -emit-module-doc-path /Users/lukacefarin/Library/Developer/Xcode/DerivedData/TodoApp-ebkeemjdmphbmlcpxrgboaqzyfyw/Build/Intermediates.noindex/TodoApp.build/Debug-iphonesimulator/TodoApp.build/Objects-normal/x86_64/ForEach~partial.swiftdoc -emit-module-doc-path /Users/lukacefarin/Library/Developer/Xcode/DerivedData/TodoApp-ebkeemjdmphbmlcpxrgboaqzyfyw/Build/Intermediates.noindex/TodoApp.build/Debug-iphonesimulator/TodoApp.build/Objects-normal/x86_64/IndexedCollection~partial.swiftdoc -serialize-diagnostics-path /Users/lukacefarin/Library/Developer/Xcode/DerivedData/TodoApp-ebkeemjdmphbmlcpxrgboaqzyfyw/Build/Intermediates.noindex/TodoApp.build/Debug-iphonesimulator/TodoApp.build/Objects-normal/x86_64/ForEach.dia -serialize-diagnostics-path /Users/lukacefarin/Library/Developer/Xcode/DerivedData/TodoApp-ebkeemjdmphbmlcpxrgboaqzyfyw/Build/Intermediates.noindex/TodoApp.build/Debug-iphonesimulator/TodoApp.build/Objects-normal/x86_64/IndexedCollection.dia -emit-dependencies-path /Users/lukacefarin/Library/Developer/Xcode/DerivedData/TodoApp-ebkeemjdmphbmlcpxrgboaqzyfyw/Build/Intermediates.noindex/TodoApp.build/Debug-iphonesimulator/TodoApp.build/Objects-normal/x86_64/ForEach.d -emit-dependencies-path /Users/lukacefarin/Library/Developer/Xcode/DerivedData/TodoApp-ebkeemjdmphbmlcpxrgboaqzyfyw/Build/Intermediates.noindex/TodoApp.build/Debug-iphonesimulator/TodoApp.build/Objects-normal/x86_64/IndexedCollection.d -emit-reference-dependencies-path /Users/lukacefarin/Library/Developer/Xcode/DerivedData/TodoApp-ebkeemjdmphbmlcpxrgboaqzyfyw/Build/Intermediates.noindex/TodoApp.build/Debug-iphonesimulator/TodoApp.build/Objects-normal/x86_64/ForEach.swiftdeps -emit-reference-dependencies-path /Users/lukacefarin/Library/Developer/Xcode/DerivedData/TodoApp-ebkeemjdmphbmlcpxrgboaqzyfyw/Build/Intermediates.noindex/TodoApp.build/Debug-iphonesimulator/TodoApp.build/Objects-normal/x86_64/IndexedCollection.swiftdeps -target x86_64-apple-ios13.2-simulator -enable-objc-interop -sdk /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator13.2.sdk -I /Users/lukacefarin/Library/Developer/Xcode/DerivedData/TodoApp-ebkeemjdmphbmlcpxrgboaqzyfyw/Build/Products/Debug-iphonesimulator -F /Users/lukacefarin/Library/Developer/Xcode/DerivedData/TodoApp-ebkeemjdmphbmlcpxrgboaqzyfyw/Build/Products/Debug-iphonesimulator -enable-testing -g -module-cache-path /Users/lukacefarin/Library/Developer/Xcode/DerivedData/ModuleCache.noindex -swift-version 5 -enforce-exclusivity=checked -Onone -D DEBUG -serialize-debugging-options -Xcc -working-directory -Xcc /Users/lukacefarin/Documents/Tutorials/iOS Apprentice/My Exercises/TodoApp -enable-anonymous-context-mangled-names -Xcc -I/Users/lukacefarin/Library/Developer/Xcode/DerivedData/TodoApp-ebkeemjdmphbmlcpxrgboaqzyfyw/Build/Intermediates.noindex/TodoApp.build/Debug-iphonesimulator/TodoApp.build/swift-overrides.hmap -Xcc -iquote -Xcc /Users/lukacefarin/Library/Developer/Xcode/DerivedData/TodoApp-ebkeemjdmphbmlcpxrgboaqzyfyw/Build/Intermediates.noindex/TodoApp.build/Debug-iphonesimulator/TodoApp.build/TodoApp-generated-files.hmap -Xcc -I/Users/lukacefarin/Library/Developer/Xcode/DerivedData/TodoApp-ebkeemjdmphbmlcpxrgboaqzyfyw/Build/Intermediates.noindex/TodoApp.build/Debug-iphonesimulator/TodoApp.build/TodoApp-own-target-headers.hmap -Xcc -I/Users/lukacefarin/Library/Developer/Xcode/DerivedData/TodoApp-ebkeemjdmphbmlcpxrgboaqzyfyw/Build/Intermediates.noindex/TodoApp.build/Debug-iphonesimulator/TodoApp.build/TodoApp-all-target-headers.hmap -Xcc -iquote -Xcc /Users/lukacefarin/Library/Developer/Xcode/DerivedData/TodoApp-ebkeemjdmphbmlcpxrgboaqzyfyw/Build/Intermediates.noindex/TodoApp.build/Debug-iphonesimulator/TodoApp.build/TodoApp-project-headers.hmap -Xcc -I/Users/lukacefarin/Library/Developer/Xcode/DerivedData/TodoApp-ebkeemjdmphbmlcpxrgboaqzyfyw/Build/Products/Debug-iphonesimulator/include -Xcc -I/Users/lukacefarin/Library/Developer/Xcode/DerivedData/TodoApp-ebkeemjdmphbmlcpxrgboaqzyfyw/Build/Intermediates.noindex/TodoApp.build/Debug-iphonesimulator/TodoApp.build/DerivedSources-normal/x86_64 -Xcc -I/Users/lukacefarin/Library/Developer/Xcode/DerivedData/TodoApp-ebkeemjdmphbmlcpxrgboaqzyfyw/Build/Intermediates.noindex/TodoApp.build/Debug-iphonesimulator/TodoApp.build/DerivedSources/x86_64 -Xcc -I/Users/lukacefarin/Library/Developer/Xcode/DerivedData/TodoApp-ebkeemjdmphbmlcpxrgboaqzyfyw/Build/Intermediates.noindex/TodoApp.build/Debug-iphonesimulator/TodoApp.build/DerivedSources -Xcc -DDEBUG=1 -module-name TodoApp -o /Users/lukacefarin/Library/Developer/Xcode/DerivedData/TodoApp-ebkeemjdmphbmlcpxrgboaqzyfyw/Build/Intermediates.noindex/TodoApp.build/Debug-iphonesimulator/TodoApp.build/Objects-normal/x86_64/ForEach.o -o /Users/lukacefarin/Library/Developer/Xcode/DerivedData/TodoApp-ebkeemjdmphbmlcpxrgboaqzyfyw/Build/Intermediates.noindex/TodoApp.build/Debug-iphonesimulator/TodoApp.build/Objects-normal/x86_64/IndexedCollection.o -index-store-path /Users/lukacefarin/Library/Developer/Xcode/DerivedData/TodoApp-ebkeemjdmphbmlcpxrgboaqzyfyw/Index/DataStore -index-system-modules

  1. While silgen emitConstructor SIL function “@$s7SwiftUI7ForEachV7TodoAppAA4ViewR0_rlE_7contentACyAD17IndexedCollectionVyqd__Gq_q0_Gqd___q0_AI5IndexQactcAIRsz7Element_2IDQYd__Rs_SkRd__s12IdentifiableAMRpd__lufC”.
    for ‘init(_:content:)’ (at /Users/lukacefarin/Documents/Tutorials/iOS Apprentice/My Exercises/TodoApp/TodoApp/Extensions/ForEach.swift:16:3)
    0 swift 0x00000001058b2a63 PrintStackTraceSignalHandler(void*) + 51
    1 swift 0x00000001058b2236 SignalHandler(int) + 358
    2 libsystem_platform.dylib 0x00007fff7417bb1d _sigtramp + 29
    3 swift 0x00000001024a6c80 llvm::Optionalswift::Type llvm::function_ref<llvm::Optionalswift::Type (swift::TypeBase*)>::callback_fn<substType(swift::Type, llvm::function_ref<swift::Type (swift::SubstitutableType*)>, llvm::function_ref<llvm::Optionalswift::ProtocolConformanceRef (swift::CanType, swift::Type, swift::ProtocolDecl*)>, swift::SubstOptions)::$_17>(long, swift::TypeBase*) + 0
    4 swift 0x0000000101915898 (anonymous namespace)::SILGenApply::visitApplyExpr(swift::ApplyExpr*) + 6952
    5 swift 0x00000001019143c9 (anonymous namespace)::SILGenApply::visitApplyExpr(swift::ApplyExpr*) + 1625
    6 swift 0x0000000101905ccd swift::Lowering::SILGenFunction::emitApplyExpr(swift::Expr*, swift::Lowering::SGFContext) + 189
    7 swift 0x000000010196cb6a (anonymous namespace)::RValueEmitter::visitRebindSelfInConstructorExpr(swift::RebindSelfInConstructorExpr*, swift::Lowering::SGFContext) + 698
    8 swift 0x0000000101972a7f swift::Lowering::SILGenFunction::emitIgnoredExpr(swift::Expr*) + 799
    9 swift 0x00000001019d2563 swift::ASTVisitor<(anonymous namespace)::StmtEmitter, void, void, void, void, void, void>::visit(swift::Stmt*) + 3139
    10 swift 0x000000010193b6b7 swift::Lowering::SILGenFunction::emitValueConstructor(swift::ConstructorDecl*) + 8583
    11 swift 0x00000001018ef939 swift::Lowering::SILGenModule::emitConstructor(swift::ConstructorDecl*) + 1385
    12 swift 0x00000001019e3b27 swift::Lowering::SILGenModule::visitExtensionDecl(swift::ExtensionDecl*) + 247
    13 swift 0x00000001018f8316 swift::Lowering::SILGenModule::emitSourceFile(swift::SourceFile*) + 1238
    14 swift 0x00000001018f9d76 swift::SILModule::constructSIL(swift::ModuleDecl*, swift::SILOptions&, swift::FileUnit*) + 1238
    15 swift 0x00000001014fb974 performCompile(swift::CompilerInstance&, swift::CompilerInvocation&, llvm::ArrayRef<char const*>, int&, swift::FrontendObserver*, swift::UnifiedStatsReporter*) + 28340
    16 swift 0x00000001014f12b4 swift::performFrontend(llvm::ArrayRef<char const*>, char const*, void*, swift::FrontendObserver*) + 6820
    17 swift 0x000000010147e7b3 main + 1219
    18 libdyld.dylib 0x00007fff73f7a2e5 start + 1
    error: Segmentation fault: 11 (in target ‘TodoApp’ from project ‘TodoApp’)

And here is error log for “Command CompileSwift failed with a nonzero exit code”:

CompileSwift normal x86_64 /Users/lukacefarin/Documents/Tutorials/iOS\ Apprentice/My\ Exercises/TodoApp/TodoApp/SceneDelegate.swift (in target ‘TodoApp’ from project ‘TodoApp’)
cd /Users/lukacefarin/Documents/Tutorials/iOS\ Apprentice/My\ Exercises/TodoApp
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift -frontend -c /Users/lukacefarin/Documents/Tutorials/iOS\ Apprentice/My\ Exercises/TodoApp/TodoApp/Checklist.swift /Users/lukacefarin/Documents/Tutorials/iOS\ Apprentice/My\ Exercises/TodoApp/TodoApp/AppDelegate.swift /Users/lukacefarin/Documents/Tutorials/iOS\ Apprentice/My\ Exercises/TodoApp/TodoApp/Extensions/ForEach.swift /Users/lukacefarin/Documents/Tutorials/iOS\ Apprentice/My\ Exercises/TodoApp/TodoApp/Extensions/IndexedCollection.swift -primary-file /Users/lukacefarin/Documents/Tutorials/iOS\ Apprentice/My\ Exercises/TodoApp/TodoApp/SceneDelegate.swift /Users/lukacefarin/Documents/Tutorials/iOS\ Apprentice/My\ Exercises/TodoApp/TodoApp/RowView.swift /Users/lukacefarin/Documents/Tutorials/iOS\ Apprentice/My\ Exercises/TodoApp/TodoApp/ChecklistView.swift /Users/lukacefarin/Documents/Tutorials/iOS\ Apprentice/My\ Exercises/TodoApp/TodoApp/EditChecklistItemView.swift /Users/lukacefarin/Documents/Tutorials/iOS\ Apprentice/My\ Exercises/TodoApp/TodoApp/NewChecklistItemView.swift /Users/lukacefarin/Documents/Tutorials/iOS\ Apprentice/My\ Exercises/TodoApp/TodoApp/ChecklistItem.swift /Users/lukacefarin/Documents/Tutorials/iOS\ Apprentice/My\ Exercises/TodoApp/TodoApp/Extensions/Binding.swift -emit-module-path /Users/lukacefarin/Library/Developer/Xcode/DerivedData/TodoApp-ebkeemjdmphbmlcpxrgboaqzyfyw/Build/Intermediates.noindex/TodoApp.build/Debug-iphonesimulator/TodoApp.build/Objects-normal/x86_64/SceneDelegate~partial.swiftmodule -emit-module-doc-path /Users/lukacefarin/Library/Developer/Xcode/DerivedData/TodoApp-ebkeemjdmphbmlcpxrgboaqzyfyw/Build/Intermediates.noindex/TodoApp.build/Debug-iphonesimulator/TodoApp.build/Objects-normal/x86_64/SceneDelegate~partial.swiftdoc -serialize-diagnostics-path /Users/lukacefarin/Library/Developer/Xcode/DerivedData/TodoApp-ebkeemjdmphbmlcpxrgboaqzyfyw/Build/Intermediates.noindex/TodoApp.build/Debug-iphonesimulator/TodoApp.build/Objects-normal/x86_64/SceneDelegate.dia -emit-dependencies-path /Users/lukacefarin/Library/Developer/Xcode/DerivedData/TodoApp-ebkeemjdmphbmlcpxrgboaqzyfyw/Build/Intermediates.noindex/TodoApp.build/Debug-iphonesimulator/TodoApp.build/Objects-normal/x86_64/SceneDelegate.d -emit-reference-dependencies-path /Users/lukacefarin/Library/Developer/Xcode/DerivedData/TodoApp-ebkeemjdmphbmlcpxrgboaqzyfyw/Build/Intermediates.noindex/TodoApp.build/Debug-iphonesimulator/TodoApp.build/Objects-normal/x86_64/SceneDelegate.swiftdeps -target x86_64-apple-ios13.2-simulator -enable-objc-interop -sdk /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator13.2.sdk -I /Users/lukacefarin/Library/Developer/Xcode/DerivedData/TodoApp-ebkeemjdmphbmlcpxrgboaqzyfyw/Build/Products/Debug-iphonesimulator -F /Users/lukacefarin/Library/Developer/Xcode/DerivedData/TodoApp-ebkeemjdmphbmlcpxrgboaqzyfyw/Build/Products/Debug-iphonesimulator -enable-testing -g -module-cache-path /Users/lukacefarin/Library/Developer/Xcode/DerivedData/ModuleCache.noindex -swift-version 5 -enforce-exclusivity=checked -Onone -D DEBUG -serialize-debugging-options -Xcc -working-directory -Xcc /Users/lukacefarin/Documents/Tutorials/iOS\ Apprentice/My\ Exercises/TodoApp -enable-anonymous-context-mangled-names -Xcc -I/Users/lukacefarin/Library/Developer/Xcode/DerivedData/TodoApp-ebkeemjdmphbmlcpxrgboaqzyfyw/Build/Intermediates.noindex/TodoApp.build/Debug-iphonesimulator/TodoApp.build/swift-overrides.hmap -Xcc -iquote -Xcc /Users/lukacefarin/Library/Developer/Xcode/DerivedData/TodoApp-ebkeemjdmphbmlcpxrgboaqzyfyw/Build/Intermediates.noindex/TodoApp.build/Debug-iphonesimulator/TodoApp.build/TodoApp-generated-files.hmap -Xcc -I/Users/lukacefarin/Library/Developer/Xcode/DerivedData/TodoApp-ebkeemjdmphbmlcpxrgboaqzyfyw/Build/Intermediates.noindex/TodoApp.build/Debug-iphonesimulator/TodoApp.build/TodoApp-own-target-headers.hmap -Xcc -I/Users/lukacefarin/Library/Developer/Xcode/DerivedData/TodoApp-ebkeemjdmphbmlcpxrgboaqzyfyw/Build/Intermediates.noindex/TodoApp.build/Debug-iphonesimulator/TodoApp.build/TodoApp-all-target-headers.hmap -Xcc -iquote -Xcc /Users/lukacefarin/Library/Developer/Xcode/DerivedData/TodoApp-ebkeemjdmphbmlcpxrgboaqzyfyw/Build/Intermediates.noindex/TodoApp.build/Debug-iphonesimulator/TodoApp.build/TodoApp-project-headers.hmap -Xcc -I/Users/lukacefarin/Library/Developer/Xcode/DerivedData/TodoApp-ebkeemjdmphbmlcpxrgboaqzyfyw/Build/Products/Debug-iphonesimulator/include -Xcc -I/Users/lukacefarin/Library/Developer/Xcode/DerivedData/TodoApp-ebkeemjdmphbmlcpxrgboaqzyfyw/Build/Intermediates.noindex/TodoApp.build/Debug-iphonesimulator/TodoApp.build/DerivedSources-normal/x86_64 -Xcc -I/Users/lukacefarin/Library/Developer/Xcode/DerivedData/TodoApp-ebkeemjdmphbmlcpxrgboaqzyfyw/Build/Intermediates.noindex/TodoApp.build/Debug-iphonesimulator/TodoApp.build/DerivedSources/x86_64 -Xcc -I/Users/lukacefarin/Library/Developer/Xcode/DerivedData/TodoApp-ebkeemjdmphbmlcpxrgboaqzyfyw/Build/Intermediates.noindex/TodoApp.build/Debug-iphonesimulator/TodoApp.build/DerivedSources -Xcc -DDEBUG=1 -module-name TodoApp -o /Users/lukacefarin/Library/Developer/Xcode/DerivedData/TodoApp-ebkeemjdmphbmlcpxrgboaqzyfyw/Build/Intermediates.noindex/TodoApp.build/Debug-iphonesimulator/TodoApp.build/Objects-normal/x86_64/SceneDelegate.o -index-store-path /Users/lukacefarin/Library/Developer/Xcode/DerivedData/TodoApp-ebkeemjdmphbmlcpxrgboaqzyfyw/Index/DataStore -index-system-modules

It is interesting that when I run project from source code everything works perfectly.

3 Likes
2

Hi, what color of your “Extensions” folder? If blue - delete it, create folder “Extensions” - it should be yellow, and copy-past files from source code to it, or copy-past only files without folder.

1 Like
3

Tried everything but doesn’t help, I think that must be some Xcode problem because everything worked perfectly until I copied this folder to my project.

1 Like
4

Resurrecting this thread to say that I am experiencing the same issue as well.

I have tried the drag-n-drop method as described in the book, I have created the files and groups manually in the finder and added them to the project, I have even through Xcode created the files and copy pasted the code into each of the files.

The fault seems to come from the ForEach.swift file, as both seen from the dump and that once the file is removed from the project the seg fault disappears; though as expected the project will not compile either.

The dump can be found here: hatebin

iMac 17,1
Xcode Version 11.3.1 (11C504)
macOS Catalina Version 10.15.2

Any insight on this from the staff, or someone who has overcome this issue, would be greatly appreciated!

1 Like
5

Having the same issue…

6

@accordionguy Would you be able to offer any insight into this issue? I do not know if a recent Xcode update has borked the compiler and its ability to handle the ForEach extension?

I have just downloaded the 8.1.0 edition of the book again, to verify that I had the latest materials and sadly that did not resolve any issue. I have exceeded my, albeit limited, ability to resolve this issue, and my Google-fu has proven futile.

Any help or acknowledgement on this issue would be greatly appreciated. Thank you!

2 Likes
7

To further make this even more curious: The Chapter 13-Final project that is bundled, compiles and runs within the simulator without a hitch. At a quick glance over the Xcode project properties, I did not see any real differences to the build settings. I would have expected a compiler seg-fault to persist between projects, but that does not seem to be the case?

8

I don’t know if this helps… I created an Extensions group folder, added new Swift files, and then typed in the code that’s in the final app (from the zip file) into those appropriately-named files. Basically added the extensions “manually.” That produced a working app without errors.

That would make me think that the code is good-- something else must go awry when pasting from Resource folder.

9

I’ve got the exact same issue as well. Anyone managed to fix it?

I tried @wizarddr 's workaround(copying the code and pasting it) too but that doesn’t seem to work either for me. However, running the project from the source code seems to work fine for whatever reason.

1 Like
10

Just want to clarify-- I didn’t copy or paste any code. I manually created the appropriate folders, and then typed in all of the code. I realize that it seems that shouldn’t make a difference, but it worked for me.

11

i started the whole project again and then that issue disappeared, i know its silly, but i dont even know what went wrong!!

12

Tried everything. Nothing actually works so far. Even created new project, copied all code manually, still no luck…

13

What works - only taking project from source iOS apprentice.

1 Like
14

I also have the same issue, very frustrating to not have a response when the book tells you on pages 422-423 that this is where to go for help.

That said, the error seems to be coming from this block of code.
init<Base: RandomAccessCollection>(
_ base: Base,
@ViewBuilder content: @escaping (Data.Index) → Content
)
where
Data == IndexedCollection,
Base.Element: Identifiable,
ID == Base.Element.ID
{
self.init(base) { index, _ in content(index) }
}

Any response would be appreciated! Copy, paste, manually adding etc do not solve the issue.

1 Like
15

Sorry to reply to my own post! I found this on another post for Chapter 13 and it works!
Make the same @Binding changes and .content() chapter 13 describes, then use this code in ChecklistView.swift and ignore (don’t implement) all the extensions

This works!
Thanks to ftc for posting!

1 Like
16

@accordionguy Can you please help with this when you get a chance? Thank you - much appreciated! :]

17

It works, I did as you described. Many thanks!

18

This does not work(.

20

@sergeytay Do you still have issues with this?