expo-app-loading 1.1.3 crashes the app

Please provide the following:

  1. SDK Version: 42
  2. Platforms(Android/iOS/web/all): all
  3. Add the appropriate “Tag” based on what Expo library you have a question on.

I upgraded to expo-app-loading version 1.1.3 and my app crashes with this error:

Error: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: undefined. You likely forgot to export your component from the file it's defined in, or you might have mixed up default and named imports.

Check the render method of `App`.

This error is located at:
    in App (created by ExpoRoot)
    in ExpoRoot (at renderApplication.js:45)
    in RCTView (at View.js:34)
    in View (at AppContainer.js:106)
    in DevAppContainer (at AppContainer.js:121)
    in RCTView (at View.js:34)
    in View (at AppContainer.js:132)
    in AppContainer (at renderApplication.js:39)

I raised the issue here [expo-app-loading] Component Exception, element type is invalid with version 1.1.3 · Issue #14579 · expo/expo · GitHub

I am confident that I am importing this library correctly. if you run the example provided below you should be able to replicate this issue.

This is very easy to reproduce with a blank project. After running expo init, run expo install expo-app-loading@^1.1.3 and change App.js to look like this.

import { StatusBar } from 'expo-status-bar';
import React, { useState } from 'react';
import { StyleSheet, Text, View } from 'react-native';
import AppLoading from 'expo-app-loading';

export default function App() {
  const [isReady, setIsReady] = useState(false);

  setTimeout(() => setIsReady(true), 1000);

  if (!isReady) {
    return <AppLoading />;
  }

  return (
    <View style={styles.container}>
      <Text>Open up App.js to start working on your app!</Text>
      <StatusBar style="auto" />
    </View>
  );
}

const styles = StyleSheet.create({
  container: {
    flex: 1,
    backgroundColor: '#fff',
    alignItems: 'center',
    justifyContent: 'center',
  },
});

The only fix right now is to downgrade to 1.1.2

1 Like

It looks like this issue is being addressed via Github.

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