Can't use @observable

Question

111231 OP

Created Dec ’23

Replies 2

Boosts 0

Participants 3

after i import swiftui, there's no @observable?? it shows unknown attribute...

and i cant import observation or swiftdata

import Foundation import SwiftUI

@Observable

class BusinessModel{

var businesses = [Business]()
var selectedBusiness: Business?
var input: String = ""
var service = dataservice()

}

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Answer 1

workingdogintokyo OP

Dec ’23

If you cannot import Observation or import SwiftData it's because you do not have the required environment/target settings, such as target iOS 17, macOS 14. As mentioned in the comments in your StackOverflow question.

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Answer 2

DTS Engineer OP

Apple

Dec ’23

To expand on workingdogintokyo’s comment…

after i import SwiftUI, there's no @Observable?

That’s expected. To access @Observable, you need to do this:

import Observation

If that’s failing, it’s likely that you need to upgrade to Xcode 15. The Observation framework requires iOS 17 [1] and thus you need the iOS 17 SDK, which means Xcode 15.

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[1] Likewise macOS 14 and the other Apple platforms.

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