title: AsyncStorage is null when using with react native web
body: <p>I am trying to use async storage with "react native web" but it is saying " AsyncStorage is null".</p>
  
  <p>commands I ran:</p>
  
  <pre><code>yarn add @react-native-community/async-storage
  
  react-native link @react-native-community/async-storage
  </code></pre>
  
  <p>When I try to open localhost:3000, it says that error.</p>
  
  <p>Any idea how to fix this?</p>