I can't get the modal example working. I was doing something else with modals, but it wasn't working. I tried using the example. It appears to load (the elements are there) but they cannot be seen. Clicking anywhere on the page runs the 'Toggle' function, but nothing happens. Errors: Warning: Unknown event handler property `onExited`. It will be ignored. in div (created by Fade) in Fade in div (created by TransitionGroup) in TransitionGroup a.(anonymous function) raven.js:58 Warning: Received `true` for a non-boolean attribute `in`. If you want to write it to the DOM, pass a string instead: in="true" or in={value.toString()}. in div (created by Fade) in Fade in div (created by TransitionGroup) in TransitionGroup   Code: import React from 'react'; import { Container, Button, Modal, ModalBody, ModalHeader, ModalFooter } from 'mdb'; class ModalPage extends React.Component { constructor(props) { super(props); this.state = { modal: false }; this.toggle = this.toggle.bind(this); } toggle() { this.setState({ modal: !this.state.modal }); } render() { return ( <Container> <Button color="danger" onClick={this.toggle}>Modal</Button> <Modal isOpen={this.state.modal} toggle={this.toggle}> <ModalHeader toggle={this.toggle}>Modal title</ModalHeader> <ModalBody> (...) </ModalBody> <ModalFooter> <Button color="secondary" onClick={this.toggle}>Close</Button>{' '} <Button color="primary">Save changes</Button> </ModalFooter> </Modal> </Container> ); } } export default ModalPage; Thanks.

---