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