macOS 10.13.3 Telugu修复补充更新后Xcode 9.2无法启动求助

Hey there, sorry to hear Xcode 9.2 is being stubborn and won’t launch after that macOS 10.13.3 supplementary update—let’s work through some practical fixes to get it running again:

• Reset Xcode’s preferences
  System updates can sometimes muck up app preferences. First, make sure Xcode is completely closed (check Activity Monitor if you’re unsure it’s not running in the background). Open Terminal and run this command:
  defaults delete com.apple.dt.Xcode
  After running it, try launching Xcode again. If that doesn’t work, you can also manually delete the preferences file by navigating to ~/Library/Preferences/com.apple.dt.Xcode.plist and moving it to the trash.

• Clear Xcode’s cached data
  Corrupted cache files are a common culprit for launch issues. In Terminal, run these two commands to clear the main caches:
  rm -rf ~/Library/Caches/com.apple.dt.Xcode
rm -rf ~/Library/Developer/Xcode/DerivedData
  Once done, restart your Mac and try opening Xcode again.

• Reinstall Xcode Command Line Tools
  The system update might have messed up the compatibility between Xcode and the command line tools. Open Terminal and run:
  xcode-select --install
  Follow the on-screen prompts to install the tools, then restart Xcode to see if it launches.

• Verify and re-install Xcode
  Sometimes system updates can corrupt Xcode’s core files. Open the App Store, find Xcode, and click the cloud icon (if it’s visible) to re-download and reinstall it. Alternatively, you can delete the Xcode app from your Applications folder first, then re-download it fresh from the App Store. This ensures all files are intact and compatible with your updated macOS.

• Run Disk Utility First Aid
  Even though macOS 10.13+ uses a different permission system, disk errors can still interfere with app launches. Open Disk Utility, select your system drive, click the "First Aid" button, and let it run a full check and repair. Once finished, restart your Mac and try launching Xcode again.

If none of these steps work, you might want to consider upgrading to Xcode 9.3 (which is officially compatible with macOS 10.13.3) if your project allows it—this would eliminate version compatibility issues entirely.

内容的提问来源于stack exchange，提问作者Rool Paap