Xcode全局替换功能失效求助：Xcode 8.3.3无法全项目替换内容

Hey, sorry to hear you're stuck with global find-and-replace not working—having to update content file by file is a huge hassle. Let's walk through some tried-and-true fixes that usually resolve this problem:

• Double-check your search scope
  Open the Find Navigator with ⌘+F, then click the "Find" dropdown next to the search bar. Make sure you've selected Find in Project (not "Find in Current File" or "Find in Selection"). Also, check the "Scope" option below the search results—if it's restricted to a specific folder or file type, switch it back to the default Project scope.

• Clear Xcode's cache and Derived Data
  Corrupted cache often messes up search functionality. Close Xcode completely, then open Terminal and run these commands:

  rm -rf ~/Library/Caches/com.apple.dt.Xcode
  rm -rf ~/Library/Developer/Xcode/DerivedData
  

  Reopen Xcode afterward and try the global replace again.

• Verify search matching options
  Click the magnifying glass icon next to the search bar in the Find Navigator. If you have Case Sensitive, Whole Words, or Regular Expression checked and don't need those rules for your replacement, uncheck them. These settings can narrow your search results unexpectedly, making it look like the replace isn't working.

• Restart Xcode (and your Mac if needed)
  Sometimes Xcode's background processes glitch out. A simple restart of the app can fix odd behavior. If that doesn't help, rebooting your Mac clears any lingering system-level issues that might be interfering.

• Check for corrupted project files
  Your .xcodeproj file might have minor corruption. Right-click the .xcodeproj file in Finder, select Show Package Contents, then delete the project.xcworkspace folder and xcuserdata folder. Reopen your project in Xcode and test the replace feature again.

内容的提问来源于stack exchange，提问作者MUNCH IOS