React Native CLI安装Google Maps失败，编译报错求排查原因

Hey there! Let's break down why you're hitting this CompileC error with RCTDevSettings.mm while setting up Google Maps in React Native CLI, and how to fix it:

1. Version Mismatches Between React Native and Dependencies #

This is the most common culprit. If your React Native version is out of sync with the react-native-maps library or other Pods, it can lead to syntax or API conflicts in files like RCTDevSettings.mm.

• Fix:
  • Double-check the compatibility matrix for react-native-maps against your React Native version (you can find this directly in the library's README).
  • If versions don't align, either upgrade/downgrade React Native or switch to a compatible version of react-native-maps.
  • Run pod deintegrate in your ios directory, then pod install to refresh the Pods with the correct versions.

2. Incomplete or Cached Pod Installations #

Sometimes Pods don't install properly, or old cached files interfere with the build process.

• Fix:
  • Delete the Pods folder and Podfile.lock in your ios directory:

    cd ios
    rm -rf Pods Podfile.lock
    

  • Clear Xcode's build cache: Go to Xcode > Product > Clean Build Folder (or press Cmd+Shift+K).
  • Reinstall Pods with repo updates:

    pod install --repo-update
    

3. Path Issues (Spaces in Your Project Directory) #

Looking at your error path: /Volumes/DATA/React\ Native/Redux-React-Native/... — spaces in the project path can sometimes confuse Xcode's compiler when resolving file paths.

• Fix:
  • Try moving your project to a directory without spaces (e.g., /Volumes/DATA/ReactNative/Redux-React-Native/ instead of React Native).
  • After moving, re-run pod install in the ios folder and rebuild the project.

4. Xcode Architecture Configuration Problems #

The error mentions x86_64 (simulator architecture). If your Xcode project's architecture settings are misconfigured, it can cause compilation failures for simulator builds.

• Fix:
  • Open your project in Xcode, go to your target's Build Settings.
  • Search for Architectures and ensure it's set to Standard Architectures (arm64, x86_64) for the simulator.
  • Also check Excluded Architectures — make sure it doesn't exclude x86_64 for the Debug-iphonesimulator configuration.

5. File Permission Issues #

Rare but possible: the RCTDevSettings.mm file might have incorrect permissions preventing the compiler from accessing it.

• Fix:
  • Navigate to the file path in your terminal:

    cd node_modules/react-native/React/Modules/
    

  • Set proper permissions:

    chmod 644 RCTDevSettings.mm
    

  • Rebuild the project in Xcode.

After trying these steps, rebuild your project in Xcode or run npx react-native run-ios again. If the error persists, sharing the full, untruncated error log would help narrow it down further!

内容的提问来源于stack exchange，提问作者Sras