.backgroundTask in SwiftUI cannot compile

Question

LiYanan04818 OP

Created Jul ’22

Replies 17

Boosts 2

Views 4.4k

Participants 12

Error Code: error build: Command CompileSwift failed with a nonzero exit code

My Code:

 .backgroundTask(.appRefresh("checkValidity")) {
//   scheduleAppRefresh()
//   checkRecords()
}

Boost

Answer 1

DTS Engineer OP

Apple

Sep ’22

AFAIK this is a compile-time only error, and thus it should work on iOS 16.0. However, I wouldn’t take my word for this. You need to test what you ship.

Share and Enjoy
—
Quinn “The Eskimo!” @ Developer Technical Support @ Apple
let myEmail = "eskimo" + "1" + "@" + "apple.com"

0

Answer 2

zhoufeng123 OP

Jan ’24

I also have the same problem. May I ask what the solution is? BackgroundTask still cannot run in blank projects

 @main
struct TestApp: App {
    var body: some Scene {
        WindowGroup {
            ContentView()
        }
        .backgroundTask(.appRefresh("task")) {
            await update()
        }
    }
    func update() async{
        print("ran background")
    }
}

0

	.backgroundTask(.appRefresh("checkValidity")) {
	// scheduleAppRefresh()
	// checkRecords()
	}

	@main
	struct TestApp: App {
	var body: some Scene {
	WindowGroup {
	ContentView()
	}
	.backgroundTask(.appRefresh("task")) {
	await update()
	}
	}
	func update() async{
	print("ran background")
	}
	}