创建NSManagedObject子类...在我的项目中创建一个新的错误

Question

我想通过Editor\Create NSManagedObject Subclass ...菜单为我的实体添加一个类.但是当我添加它时,项目出错,这是消息:

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设置中将该构建系统更改为Legacy Build系统.但它还没有奏效

这个项目用xcode9制作,我现在用xcode 10开发它

Answer 1

选择xcdatamodeld在Project Navigator文件,选择实体,按⌥⌘3(数据模型督察).

如果您手动创建了类,则Codegen必须将弹出窗口设置为Manual/None否则会隐式创建类文件.