React Native 0.83 Compatibility: Unable to find React-rncore pod

[herdeybayor]

Description

React Native Navigation 8.6.1 fails to install on React Native 0.83.1 due to a missing React-rncore pod dependency.

Environment

• React Native: 0.83.1
• react-native-navigation: 8.6.1
• Platform: iOS
• New Architecture: Enabled (RCT_NEW_ARCH_ENABLED=1)

Error

[!] Unable to find a specification for React-rncore depended upon by ReactNativeNavigation

You have either:
 * out-of-date source repos which you can update with pod repo update or with pod install --repo-update.
 * mistyped the name or version.
 * not added the source repo that hosts the Podspec to your Podfile.

Root Cause

React Native 0.83 (released Dec 10, 2024) appears to have removed or renamed the React-rncore pod. However, ReactNativeNavigation.podspec still declares it as a dependency when New Architecture is enabled:

ReactNativeNavigation.podspec:60

if fabric_enabled
  # ... other dependencies
  s.dependency "React-rncore"
  s.dependency "React-RuntimeCore"
end

Temporary Workaround

Commenting out the React-rncore dependency allows pod installation to succeed:

# s.dependency "React-rncore"  # Removed for React Native 0.83 compatibility

Using patch-package to persist this change works well as a temporary solution.

Request

Could you please:

1. Investigate React Native 0.83's core dependency changes
2. Update the podspec to support React Native 0.83
3. Consider adding version-specific conditional dependencies if needed

Additional Context

• React Native 0.83 release: https://reactnative.dev/blog/2025/12/10/react-native-0.83
• This affects all react-native-navigation 8.x versions (tested 8.4.0, 8.5.0, 8.6.1)
• The React-rncore pod seems to have been merged into ReactCodegen or React-Core-prebuilt in RN 0.83

Thank you for maintaining this excellent library!

[herdeybayor]

Update: Android Build Also Fails

The incompatibility extends to Android as well. Building on Android fails with multiple Kotlin compilation errors:

Android Errors

e: Unresolved reference 'CSSBackgroundDrawable'
e: Argument type mismatch: actual type is 'Int?', but 'Int' was expected
e: Argument type mismatch: actual type is 'Context?', but 'Context' was expected

Affected files:

• ReactPlatformColor.kt
• ColorParser.kt
• ReactViewGroup.kt
• BackgroundColorAnimator.kt
• BackgroundColorEvaluator.kt

It appears CSSBackgroundDrawable was removed or renamed in React Native 0.83, causing widespread compilation failures in react-native-navigation's Android implementation.

This confirms that React Native 0.83 support requires updates to both iOS (podspec) and Android (Kotlin source) code.