MasonryFlashList: Invalid prop externalScrollView

[elliotsayes]

Current behavior

import { FlashList, MasonryFlashList } from "@shopify/flash-list"
import { Text } from "react-native"

const DATA = [
  {
    title: "First Item",
  },
  {
    title: "Second Item",
  },
];

const NoteListScreen = () => {
  return (
    <MasonryFlashList
      data={DATA}
      numColumns={2}
      renderItem={({ item }) => <Text>{item.title}</Text>}
      estimatedItemSize={200}
    />
  )
}

Results in:

 ERROR  Warning: Failed prop type: Invalid prop `externalScrollView` of type `object` supplied to `ProgressiveListView`, expected `function`.
    at ProgressiveListView (http://localhost:8081/index.bundle?platform=ios&dev=true&minify=false&modulesOnly=false&runModule=true&app=org.reactjs.native.example.Notes2:119804:50)
    in FlashList (created by PureComponentWrapper)
    in RCTView (created by View)
    in View (created by PureComponentWrapper)
    in PureComponentWrapper (created by ViewRenderer)
    in CellContainer (created by ViewRenderer)
    in ViewRenderer (created by ProgressiveListView)
    in AutoLayoutView (created by AutoLayoutView)
    in AutoLayoutView (created by ScrollComponent)
    in RCTView (created by View)
    in View (created by ScrollComponent)
    in RCTScrollContentView (created by ScrollView)
    in RCTScrollView (created by ScrollView)
    in ScrollView (created by ScrollView)
    in ScrollView (created by ScrollComponent)
    in ScrollComponent (created by ProgressiveListView)
    in ProgressiveListView (created by StickyContainer)
    in RCTView (created by View)
    in View (created by StickyContainer)
    in StickyContainer (created by FlashList)
    in FlashList (created by MasonryFlashList)
    in MasonryFlashList (created by NoteListScreen)
    in NoteListScreen (created by DevelopmentApp)
    in DevelopmentApp
    in RCTView (created by View)
    in View (created by AppContainer)
    in RCTView (created by View)
    in View (created by AppContainer)
    in AppContainer
    in Notes2(RootComponent)

This only happens for MasonryFlashList, not FlashList

Expected behavior

No warning.

To Reproduce

React native typescript template + https://github.com/elliotsayes/MasonryFlashListRepro/commits/main

Platform:

• iOS
• Android

Environment

1.3.0

[naqvitalha]

We mentioned this in our release notes already. We will fix this soon but this warning isn't something to be worried about. It's just that one of the prop types in recyclerlistview is incorrect.

[madmeatballs]

any updates on this? Is this fixed already?

Encountered it with "@shopify/flash-list": "^1.3.0"

[naqvitalha]

Fixed in v1.4.0