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
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Fix: Xcode Wireless Debugging Not Connecting to iPhone or Apple TV
Set up Xcode wireless debugging for iPhone, iPad and Apple TV 4K, and fix the missing network icon or vanishing ‘Connect via…
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How to View iOS Simulator Console Logs Without Running Xcode
See iOS Simulator console logs without running your app from Xcode: use simctl log stream in Terminal, the Simulator Debug menu, or…
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Fix: A Valid Provisioning Profile for This Executable Was Not Found
Getting ‘A valid provisioning profile for this executable was not found’ when running on a device? Check your signing identity and the…
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Fix: UIButton Title Is Centered Instead of Left-Aligned in Swift
UIButton title stuck in the center? Set contentHorizontalAlignment to .left, add a left inset, and use UIButton.Configuration on iOS 15+. Code for…
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Fix: Noisy Xcode Console Logs from OS_ACTIVITY_MODE in Simulator
Silence the system log spam in the Xcode console, like ‘subsystem: com.apple.UIKit, category: HIDEvents’, using OS_ACTIVITY_MODE without hiding device logs.
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How to Localize Info.plist Strings in Xcode with InfoPlist.strings
Localize permission descriptions and other Info.plist values in Xcode using InfoPlist.strings. Step-by-step setup, examples, and simulator testing tips.
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How to Declare Optional Methods in a Swift Protocol
Swift has no plain optional protocol methods. Learn the two ways to fake them: default implementations in an extension, or @objc optional,…
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Fix: Back Button Text Not Changing in UINavigationController
Your navigation back button title won’t change? Set backBarButtonItem on the previous view controller, in code or Interface Builder, and hide the…
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How to Replace dispatch_after with asyncAfter and Task.sleep
Replace the old dispatch_after call with DispatchQueue.main.asyncAfter or Task.sleep. Covers delay syntax, canceling delayed work, and SwiftUI’s .task modifier.
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Fix: CocoaPods Specs Repository Is Too Out-of-Date in Flutter iOS
Fix the CocoaPods ‘specs repository is too out-of-date’ error in Flutter iOS builds. Reset Podfile.lock, update the spec repo and set the…
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.