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ERROR in (19,8): " should be '

import React from "react";
import ReactDOM from "react-dom";
import PhotoGrid from "react-photo-feed";
import "react-photo-feed/library/style.css";

const demoPhotos = [
	{
		id : 1, src : "https://farm5.staticflickr.com/4077/34824083444_f5f050e31c_n.jpg",
		bigSrc : "https://farm5.staticflickr.com/4077/34824083444_f5f050e31c_b.jpg"
	},
	{
		id : 2, src : "https://farm5.staticflickr.com/4240/35527849422_25a0a67df6_n.jpg",
		bigSrc : "https://farm5.staticflickr.com/4240/35527849422_25a0a67df6_b.jpg"
	},
	{
		id : 3, src : "https://farm5.staticflickr.com/4077/34824083444_f5f050e31c_n.jpg",
		bigSrc : "https://farm5.staticflickr.com/4077/34824083444_f5f050e31c_b.jpg"
	},
	{
		id : 4, src : "https://farm5.staticflickr.com/4240/35527849422_25a0a67df6_n.jpg",
		bigSrc : "https://farm5.staticflickr.com/4240/35527849422_25a0a67df6_b.jpg"
	},
	{
		id : 5, src : "https://farm5.staticflickr.com/4077/34824083444_f5f050e31c_n.jpg",
		bigSrc : "https://farm5.staticflickr.com/4077/34824083444_f5f050e31c_b.jpg"
	},
	{
		id : 6, src : "https://farm5.staticflickr.com/4240/35527849422_25a0a67df6_n.jpg",
		bigSrc : "https://farm5.staticflickr.com/4240/35527849422_25a0a67df6_b.jpg"
	},
	{
		id : 7, src : "https://farm5.staticflickr.com/4077/34824083444_f5f050e31c_n.jpg",
		bigSrc : "https://farm5.staticflickr.com/4077/34824083444_f5f050e31c_b.jpg"
	}
];
ReactDOM.render(
	<div>
		<PhotoGrid columns={3} photos={demoPhotos} />
	</div>,
	document.getElementById('root')
);

// src/js/components/App.jsx
import React, { Component } from "react";
import DemoPhotos from "./DemoPhotos.jsx";
class App extends Component {
    constructor(props) {
        super(props);
        this.handleClick = this.handleClick.bind(this);
    }

    handleClick() {
        const { addToast } = this.props.actions;
        addToast({ text: "Hello, World!" });
    }

    render() {
        return (
            <main>
                <div className="row mt-5">
                    <div className="col-md-4 offset-md-1">
                        <h2>Add a new article</h2>
                        <DemoPhotos />
                    </div>
                </div>
            </main>
        );
    }
}

export default App;