react-native: TypeError: Cannot read property 'getItem' of undefined

Uncaught TypeError: Cannot read property ‘getItem’ of undefined at FlatList._checkProps (FlatList.js:452) at new FlatList (FlatList.js:396) at constructClassInstance (ReactNativeRenderer-dev.js:7726) at updateClassComponent (ReactNativeRenderer-dev.js:12729) at beginWork (ReactNativeRenderer-dev.js:14756) at Object.invokeGuardedCallbackProd (ReactNativeRenderer-dev.js:93) at invokeGuardedCallback (ReactNativeRenderer-dev.js:318) at beginWork$1 (ReactNativeRenderer-dev.js:19820) at performUnitOfWork (ReactNativeRenderer-dev.js:18563) at workLoopSync (ReactNativeRenderer-dev.js:18499)

React Native version:

Run react-native info in your terminal and copy the results here.

===================== info Fetching system and libraries information… System: OS: macOS 11.2.3 CPU: (4) x64 Intel® Core™ i7-7567U CPU @ 3.50GHz Memory: 1.71 GB / 16.00 GB Shell: 5.8 - /bin/zsh Binaries: Node: 15.7.0 - /usr/local/bin/node Yarn: 1.22.10 - /usr/local/bin/yarn npm: 7.6.0 - /usr/local/bin/npm Watchman: 4.9.0 - /usr/local/bin/watchman Managers: CocoaPods: 1.10.1 - /usr/local/bin/pod SDKs: iOS SDK: Platforms: iOS 14.4, DriverKit 20.2, macOS 11.1, tvOS 14.3, watchOS 7.2 Android SDK: Not Found IDEs: Android Studio: 4.1 AI-201.8743.12.41.7042882 Xcode: 12.4/12D4e - /usr/bin/xcodebuild Languages: Java: 15.0.2 - /usr/bin/javac npmPackages: @react-native-community/cli: Not Found react: ^17.0.2 => 17.0.2 react-native: ^0.64.0 => 0.64.1 react-native-macos: Not Found npmGlobalPackages: react-native: Not Found

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Steps To Reproduce

Provide a detailed list of steps that reproduce the issue.

1. Error is triggered when FlatList is used on any page
2. VirstualList does not trigger this error

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Expected Results

Describe what you expected to happen. To run the below list of data

children: Array(15) 0: {index: 0, name: “Afghanistan”, code: “AF”, states: Array(34)} 1: {name: “Albania”, code: “AL”, states: Array(12)} 2: {index: 2, name: “Algeria”, code: “DZ”, states: Array(48)} 3: {index: 3, name: “American Samoa”, code: “AS”} 4: {index: 4, name: “Andorra”, code: “AD”, states: Array(7)} 5: {index: 5, name: “Angola”, code: “AO”, states: Array(18)}

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Snack, code example, screenshot, or link to a repository:

<SafeAreaView> {props?.list?.length ? ( <FlatList data={props.list} extraData={itemSelected} renderItem={({ item, index }) => { return renderView(item, index) }} keyExtractor={(item) => item.group} /> ) : null} </SafeAreaView>

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Ios

Android

Description