使用Xcode 7.3跟随iOS单视图应用教程运行默认代码出现数百错误

Hey there! Let's work through those frustrating errors you're facing—when even a brand-new, unmodified single-view project throws hundreds of issues, it's almost always tied to setup or compatibility glitches. Here are the most likely fixes to try:

1. Verify System & Xcode Compatibility #

Xcode 7.3 requires OS X 10.10.5 (Yosemite) or later. Double-check that your MacBook Pro is running a compatible macOS version—even if you installed the latest Xcode your CPU supports, an outdated system can cause hidden compatibility conflicts.

2. Clear Xcode's Derived Data Cache #

Corrupted cache files are a super common culprit. Here's how to wipe them:

• Close Xcode completely
• Open Terminal and run this command:

  rm -rf ~/Library/Developer/Xcode/DerivedData
  

• Reopen your project, press Cmd+Shift+K to clean the project, then Cmd+B to rebuild it.

3. Check Simulator/Device Selection #

Make sure you've selected a simulator or device that's compatible with Xcode 7.3:

• Xcode 7.3 only supports iOS versions up to 9.3—avoid any simulator targets for newer iOS versions (they shouldn't appear in Xcode 7.3, but leftover configurations might cause issues)
• If targeting a physical device, ensure it's running iOS 9.3 or earlier, and that you've properly set up developer certificates for it.

4. Validate Project Build Settings #

Open your project's settings (click the root project icon in the navigator, then select your target under "TARGETS") and verify these:

• Base SDK: Set to "Latest iOS (iOS 9.3)"
• Deployment Target: Choose a version between iOS 7.0 and 9.3 (match it to your simulator/device)
• Architectures: Ensure it's set to "Standard architectures (armv7, arm64)" (or "i386, x86_64" for simulator) — older Macs might have issues with unsupported architectures if this is misconfigured.

5. Reinstall Xcode Components #

Sometimes Xcode's core SDK or simulator components don't install correctly. Go to Xcode > Preferences > Downloads and check if any iOS 9.3 SDK or simulator updates are pending. Install them if available, then restart Xcode.

6. Test with a Fresh Project #

If none of the above works, create a brand-new single-view project (no modifications at all) and try running it. If it still throws errors, your Xcode installation might be corrupted. Uninstall Xcode completely (delete /Applications/Xcode.app and ~/Library/Developer), then redownload and reinstall Xcode 7.3.

Hope one of these steps gets your default project running smoothly! Let me know if you need clarification on any of these steps.

内容的提问来源于stack exchange，提问作者emma_lynn_rose