Mac恢复出厂设置后，数据线安装的iPhone APP闪退求助

Hey there, let's work through this app crash issue together—you’re absolutely right that provisioning profiles and certificates are almost certainly the root cause here. Resetting your Mac would have cleared local signing-related data that Xcode relies on, so here’s a step-by-step breakdown to get your apps launching properly again:

1. Re-trust Your Developer Certificate on iPhone #

When you reset your Mac, the certificate used to sign apps might no longer be trusted by your iPhone. Here’s how to fix that:

• On your iPhone, open Settings > General > VPN & Device Management
• Look for your Apple Developer account entry under "Developer App"
• Tap it, then select Trust [Your Account Name] and confirm the prompt

2. Refresh Provisioning Profiles in Xcode #

Local provisioning profiles were likely wiped during the Mac reset. Let’s get the latest ones from Apple:

• Open Xcode, go to Xcode > Settings > Accounts (or press Cmd + ,)
• Select your Apple Developer account from the list on the left
• Click the Download Manual Profiles button (this pulls all your account’s valid profiles to your Mac)
• Alternatively, in your project’s Signing & Capabilities tab, make sure Automatically manage signing is checked—Xcode will auto-fetch and use the correct profile for your target

3. Verify Project Signing Configuration #

Double-check that your project’s signing settings are correctly linked to your developer account:

• Open your Xcode project, select your app target from the left sidebar
• Go to the Signing & Capabilities tab
  • Ensure the Team dropdown is set to your Apple Developer account
  • If using manual signing, confirm the selected provisioning profile includes your iPhone’s UDID (and matches your app’s bundle identifier)
  • Verify the Bundle Identifier matches the one registered in your Apple Developer account

4. Clear Xcode’s Signing Cache #

Corrupted cache can cause unexpected signing issues. Let’s wipe it:

• Close Xcode completely
• Open Terminal and run these commands one by one:

  rm -rf ~/Library/Developer/Xcode/DerivedData
  rm -rf ~/Library/MobileDevice/Provisioning Profiles
  

• Reopen Xcode, re-download your provisioning profiles (step 2), and try installing the app again

5. Confirm Your iPhone’s UDID is Registered #

If your iPhone’s UDID wasn’t added to your developer account (or wasn’t synced after the reset), apps will crash on launch:

• Connect your iPhone to your Mac, open Xcode
• Go to Window > Devices and Simulators, select your iPhone from the list
• Copy the UDID displayed (right-click and select Copy)
• Log into your Apple Developer account, navigate to Certificates, Identifiers & Profiles > Devices
• Check if your iPhone’s UDID is listed—if not, click the plus icon to add it, then let Xcode sync the updated profile (or re-download manually)

Quick Final Check #

If none of the above works, try restarting both your Mac and iPhone—sometimes a simple reboot clears up lingering connection or sync issues.

内容的提问来源于stack exchange，提问作者Agung