Hi,
I have a Swift project which has 149 warnings. I am a bit confused as to why warnings are shown in unrelated files and many of them are the same warnings repeated a number of times.
Environment:
- Xcode Version 14.3 (14E222b)
- macOS: 13.3.1 (a) (22E772610a)
- Build setting: swift strict concurrency is turned on
Questions:
- Am I missing something?
- Is there a way to fix these warnings? (As it seems as a big distraction from other warnings)
Problem 1:
40 compiler warnings correspond to the warning message:
Non-sendable type 'Notification?' returned by call from main actor-isolated context to non-isolated instance method 'next()' cannot cross actor boundary
- These are thrown on files which are not using Notification at all
- I have removed returning a notification
- I don't have a function called
next()
in my project / swift packages I use. - I have quit the project, cleared DerivedData, cleaned build folder (Command Shift K) and re-compiled still I see the 40 same warnings
Problem 2:
Over a 100 of them correspond to the following warning:
Cannot form key path that captures non-sendable type 'KeyPath<AttributeScopes.SwiftUIAttributes, AttributeScopes.SwiftUIAttributes.ForegroundColorAttribute>'
The code responsible for this warning is:
func f1() {
var attributedString = AttributedString("This is a green car.")
let range = attributedString.range(of: "green")!
//Warning: ContentView.swift Cannot form key path that captures non-sendable type 'KeyPath<AttributeScopes.SwiftUIAttributes, AttributeScopes.SwiftUIAttributes.ForegroundColorAttribute>'
attributedString[range].foregroundColor = .green
}
- I am using this code, but I have used
ForegroundColorAttribute
only in 2 functions, yet I get 110 compiler warnings. - Feedback: FB11748376
Problem 3:
Using @preconcurrency import SwiftUI
shows the following warning:
'@preconcurrency' attribute on module 'SwiftUI' is unused
- Should all occurrences of import SwiftUI be replaced by the above or just 1?