title: RNDocumentPicker: Native module is not available
body: <p>I followed the directions exactly as described here (<a href="https://github.com/Elyx0/react-native-document-picker/issues/94?fbclid=IwAR2Ke7ejhPYaJcT0bS7jTZHbZvXM570C7aHQQRAvHQz56C9qzvf3W1R5SkA" rel="nofollow noreferrer">https://github.com/Elyx0/react-native-document-picker/issues/94?fbclid=IwAR2Ke7ejhPYaJcT0bS7jTZHbZvXM570C7aHQQRAvHQz56C9qzvf3W1R5SkA</a>) but it's not working. I get this error:</p>
  
  <pre><code>RNDocumentPicker: Native module is not available, make sure you have finished the installation process and rebuilt your app
  
  
  Error: not opened
  at WebSocket.send (/Users/miajohansson/Desktop/bnook/node_modules/ws/lib/WebSocket.js:219:16)
  at send (/Users/miajohansson/Desktop/bnook/node_modules/react-native/local-cli/server/util/webSocketProxy.js:26:12)
  at WebSocket.debuggerSocket.onmessage (/Users/miajohansson/Desktop/bnook/node_modules/react-native/local-cli/server/util/webSocketProxy.js:48:48)
  at WebSocket.onMessage (/Users/miajohansson/Desktop/bnook/node_modules/ws/lib/WebSocket.js:442:14)
  at emitTwo (events.js:126:13)
  at WebSocket.emit (events.js:214:7)
  at Receiver.ontext (/Users/miajohansson/Desktop/bnook/node_modules/ws/lib/WebSocket.js:841:10)
  at /Users/miajohansson/Desktop/bnook/node_modules/ws/lib/Receiver.js:536:18
  at /Users/miajohansson/Desktop/bnook/node_modules/ws/lib/Receiver.js:368:7
  at /Users/miajohansson/Desktop/bnook/node_modules/ws/lib/PerMessageDeflate.js:249:5
  </code></pre>
  
  <p>When I add DocumentPicker in my code (below), I get a TypeError: Cannot read property 'show' of defined.</p>
  
  <pre><code>import { DocumentPicker, DocumentPickerUtil } from 'react-native-document-picker';
  
  // iPhone/Android
  DocumentPicker.show({
        filetype: [DocumentPickerUtil.images()],
      },(error,res) =&gt; {
        // Android
        console.log(
           res.uri,
           res.type, // mime type
           res.fileName,
           res.fileSize
        );
      });
  </code></pre>
  
  <p>I've deleted node_modules and run npm install but I still get this error.</p>