创建 NSManagedObject 子类...在我的项目中创建一个新的错误 [英] Create NSManagedObject Subclass... make a new Error in my project

问题描述

我想通过 EditorCreate NSManagedObject Subclass... menu 为我的实体添加一个类.但是当我添加它时，项目出错了，这是消息:

i want to add a class for my entity by EditorCreate NSManagedObject Subclass... menu . but when i added it , the project made an error , this is the message:

Multiple commands produce '/Users/mohsenkhodadadzadeh/Library/Developer/Xcode/DerivedData/walk-fcnteanemrfigmfaalqkvwigvwqc/Build/Intermediates.noindex/walk.build/Debug-iphonesimulator/walk.build/Objects-normal/x86_64/WalkEntity+CoreDataProperties.o':
1) Target 'walk' (project 'walk') has compile command for Swift source files
2) Target 'walk' (project 'walk') has compile command for Swift source files


Multiple commands produce '/Users/mohsenkhodadadzadeh/Library/Developer/Xcode/DerivedData/walk-fcnteanemrfigmfaalqkvwigvwqc/Build/Intermediates.noindex/walk.build/Debug-iphonesimulator/walk.build/Objects-normal/x86_64/WalkEntity+CoreDataClass.o':
1) Target 'walk' (project 'walk') has compile command for Swift source files
2) Target 'walk' (project 'walk') has compile command for Swift source files

我在 File->Project settings 中将该构建系统更改为 Legacy Build 系统.但是还没用

i changed that build system to Legacy Build system in File->Project settings . but it diden't work yet

这个项目是用 xcode9 制作的，我现在用 xcode 10 开发它

this project made with xcode9 and i develope it with xcode 10 now

推荐答案

在项目导航器中选择xcdatamodeld文件，选择实体并按⌥⌘3 – inXcode 13 ⌥⌘4 – 显示数据模型检查器.

Select the xcdatamodeld file in the project navigator, select the entity and press ⌥⌘3 – in Xcode 13 ⌥⌘4 – to show the Data Model Inspector.

如果您手动创建了类，Codegen 弹出窗口必须设置为 Manual/None，否则类文件将被隐式创建.

If you created the class manually the Codegen popup must be set to Manual/None otherwise the class file is created implicitly.

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