Example doesn't work on react-native v0.21

I’m getting undefined is not an object (evaluating 'RNHTMLtoPDF.convert') error from this line: RNHTMLtoPDF.convert(options).then((result) => {

here is my code:

'use strict';

var React = require('react-native');

var {
  AlertIOS,
  AppRegistry,
  NativeModules: {
    RNHTMLtoPDF,
    RNMail
  },
  StyleSheet,
  Text,
  TouchableHighlight,
  View,
} = React;

import template from '../helpers/template';

var HTMLToPDFExample = React.createClass({

  componentDidMount() {
    var options = {
      html: template.html,
      fileName: 'test',
      directory: 'docs',
      height: 800,
      width: 1056,
      padding: 24,
    };

  RNHTMLtoPDF.convert(options).then((result) => {
    RNMail.mail({
        subject: 'Test',
        recipients: [''],
        body: '',
        attachmentPath: result,
        attachmentType: 'pdf',
      }, (error, event) => {
        if(error) {
          AlertIOS.alert('Error', 'Could not send mail. Please send a mail to [e-mail]');
        }
      });
    });
  },
.....
.....

[michshat]

@christopherdro thanks! I haven’t tried it yet. I will and let you know. Thank you again.

[ranaabumazen]

@christopherdro thanks! I haven’t tried it yet. I will and let you know. Thank you again.

did you solve that problem?!!