This is better suited to the Apple developer forums/stack overflow, FYI.
> I selected "Class Definition" in the CodeGen pop up menu in the inspector.
This tells Xcode to automatically create and maintain the entity classes for
you. They don't show up in the project navigator because they're autogenerated
files, but they're available via autocomplete and command-click jump to
definition.
> I then asked Xcode to generate the files with the "Create NSManagedObject
> subclasses".
Xcode has already generated NSManagedObject subclasses for you, so you've now
created duplicate classes. That's why you're getting this:
> But everything breaks. Building the project, I now get several errors similar
> to this:
>
> <unknown>:0: error: filename "PHAudioFile+CoreDataClass.swift" used twice:
TL;DR: Don't create NSManagedObject subclasses manually—they're already created
and automatically updated for you in Xcode 8.
> On Jan 15, 2017, at 10:01 PM, Jean-Denis Muys via swift-users
> <swift-users@swift.org> wrote:
>
> Hi,
>
> Using Xcode 8.2.1 I just created a brand new document-based Cocoa application
> using Core Data and Swift. I created a single entity in the
> Document.xcdatamodeld file. I selected "Class Definition" in the CodeGen pop
> up menu in the inspector.
>
> My entity is named PHAudioFile.
>
> I then asked Xcode to generate the files with the "Create NSManagedObject
> subclasses". It generated two files:
>
> - PHAudioFile+CoreDataClass.swift
> - PHAudioFile+CoreDataProperties.swift
>
> But everything breaks. Building the project, I now get several errors similar
> to this:
>
> <unknown>:0: error: filename "PHAudioFile+CoreDataClass.swift" used twice:
> '/Users/jdmuys/Phoenix/PHAudioFile+CoreDataClass.swift' and
> '/Users/jdmuys/Library/Developer/Xcode/DerivedData/Phoenix-buxfnwoppzieggdrogkoajdyimri/Build/Intermediates/Phoenix.build/Debug/Phoenix.build/DerivedSources/CoreDataGenerated/Document/PHAudioFile+CoreDataClass.swift'
> <unknown>:0: note: filenames are used to distinguish private declarations
> with the same name
>
> More over, the Xcode editor shows many syntax errors in the generated files.
>
> PHAudioFile+CoreDataClass.swift contains this:
>
> import Foundation
> import CoreData
>
> @objc(PHAudioFile)
> public class PHAudioFile: NSManagedObject {
>
> }
>
> With this error on the "public class PHAudioFile" line:
>
> "Invalid redeclaration of PHAudioFile"
>
> PHAudioFile+CoreDataProperties.swift starts with this line:
>
> extension PHAudioFile {
>
> Which breaks with:
>
> "'PHAudioFile' is ambiguous for type lookup in this context"
>
> and of course every line thereafter breaks too.
>
> Searching for 'PHAudioFile' in my Xcode project, finds only those two files.
> In particular I can't find any other declaration for 'PHAudioFile'.
>
> Am I missing something, or is this broken?
>
> Thanks,
>
> Jean-Denis
>
>
>
>
>
>
>
>
>
>
>
>
> has this line in error:
>
>
>
>
> _______________________________________________
> swift-users mailing list
> swift-users@swift.org
> https://lists.swift.org/mailman/listinfo/swift-users
_______________________________________________
swift-users mailing list
swift-users@swift.org
https://lists.swift.org/mailman/listinfo/swift-users
