Xcode · Swift · iOS · macOS
Fix Xcode errors, Swift bugs & iOS problems, fast.
Step-by-step fixes for build errors, code signing, SwiftUI, App Store Connect and the bugs that come with every new iOS and macOS release.
Browse by topic
For developers
Xcode Errors
Build failures, code signing and provisioning, simulator problems, archive and upload errors.
For developers
Swift & SwiftUI
Swift and SwiftUI explained with working code: concurrency, data flow, navigation, compiler errors.
For developers
App Store & TestFlight
App Store Connect, TestFlight builds, App Review rejections and StoreKit issues.
For iPhone & iPad
iOS Fixes
Battery drain, Wi-Fi, Bluetooth, storage and app problems after iOS updates.
For Mac
macOS Fixes
macOS update problems, Finder, external drives, storage and apps that won’t open.
What’s new
Developer Updates
New Xcode, SDK and OS releases: what changed, known issues and what to update.
Latest guides
-
Fix: SwiftUI View Not Updating When Observable Class Property Changes
Learn why your SwiftUI view ignores changes from an @Observable class function call and how to fix the update cycle with proper…
-
How to Add a Delay in Swift Without Freezing the UI
Add a delay in Swift the right way: DispatchQueue.asyncAfter, Task.sleep in async code, and why sleep() freezes your UI. Working code for…
-
How to Run sudo pmset From a Swift App (No Deprecated APIs)
Run pmset with root rights from a Swift macOS app: read the schedule without privileges, then write it through NSAppleScript’s admin prompt.
-
Swift Array Contains: Check if an Element Exists
Swift arrays have no `include` or `has`. Use `contains(_:)` for Equatable values, `contains(where:)` for predicates, and a Set for fast repeated lookups.
-
Fix: SwiftUI DisclosureGroup Indicator Missing in Reorderable List
Nested DisclosureGroup chevrons vanish when reorderContainer is enabled on a SwiftUI List. A custom DisclosureGroupStyle restores the controls.
-
How to Rename an iOS App in Xcode Without Breaking the Build
Rename an iOS app in Xcode the safe way: change the project name, target Product Name, bundle display name and scheme, then…
-
Fix: Cannot assign to value: ‘isSheetPresented’ is a ‘let’ constant
Pass a Binding through a SwiftUI View extension without the ‘let’ constant error: forward it directly, or use wrappedValue when you rebuild…
-
Fix: CocoaPods `Init_ffi_c` Symbol Not Found on Apple Silicon
Fix the CocoaPods dlsym Init_ffi_c LoadError on Apple Silicon: match the ffi gem to your Ruby’s architecture, or switch to Homebrew CocoaPods…
-
How to Lock Orientation for One Screen on iPad Without Full Screen
iPad ignores per-screen orientation locks while multitasking is on. Keep a scanner screen upright by handling window resizing and preview rotation instead.
-
How to Remove CocoaPods From an Xcode Project (Keep One .xcodeproj)
Remove CocoaPods the safe way: run pod deintegrate, delete Podfile and Pods, then verify no Pods references remain in Build Settings or…
Built from real problems
Every guide starts from an actual error message, release note or issue developers and users are hitting right now.
Fix first, theory second
A quick answer at the top, then the fixes in order of what’s most likely to work, with code you can copy.
Sources you can check
We link Apple’s release notes and the original discussions, and update guides when new versions change the answer.