Expo Android Rescue (SDK 52 / RN 0.76)

A reference repo showing how to fix Expo SDK 52 Android builds without ejecting.
These scripts dynamically inject missing Kotlin files and patch Gradle during EAS remote builds, restoring compatibility with React Native 0.76.

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Why This Exists

• Expo SDK 52 stopped generating critical Kotlin files:
  • MainApplication.kt
  • MainActivity.kt
  • ReactNativeHostWrapper.kt
  • PackageList.kt
  • ApplicationLifecycleDispatcher.kt
• React Native 0.76 still expects them to exist.
• Without them → 100+ failed builds, Gradle crashes, unresolved references.
• Ejecting was not an option.

This repo shows the working approach: inject Kotlin stubs + patch Gradle on the fly.

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How To Use

1. Copy scripts into your project

   • Place scripts/eas-build-post-install.js under scripts/
   • Place plugins/withInjectHostWrapper.js under plugins/

2. Add postinstall hook to your package.json

   {
     "scripts": {
       "postinstall": "node ./scripts/eas-build-post-install.js"
     }
   }