Failed child context type: Invalid child context `virtualizedCell.cellKey` of type `number` supplied to `CellRenderer`, expected `string`.

[Lekhrajk]

I am getting this warning again and again How to remove this warning

[barinascode]

x2

[JoeToeniskoetter]

I am getting this warning again and again How to remove this warning

Found a solution. Just pass your own keyExtractor function to the <AppIntroSlider/> component and cast to string. FlatList requires a string key.

return (
    <AppIntroSlider
      keyExtractor={(item) => item.id.toString()}
      renderItem={_renderItem}
      data={steps}
      onDone={_onDone}
      renderNextButton={_renderNextButton}
      renderDoneButton={_renderDoneButton}
    />
  )

[Sanan4li]

This results in TypeError: undefined is not an object (evaluating 'item.id.toString')

[Sanan4li]

The following worked for me keyExtractor={(item, index) => index.toString()} just pass it to your AppIntroSlider Component

[phamhieu1412]

I am getting this warning again and again How to remove this warning

Found a solution. Just pass your own keyExtractor function to the <AppIntroSlider/> component and cast to string. FlatList requires a string key.

return (
    <AppIntroSlider
      keyExtractor={(item) => item.id.toString()}
      renderItem={_renderItem}
      data={steps}
      onDone={_onDone}
      renderNextButton={_renderNextButton}
      renderDoneButton={_renderDoneButton}
    />
  )

work for me. keyExtractor={(item) => ${item.key}} or keyExtractor={(item) => ${item.id}} with key(id) from a element of data slide