Cannot parse the generated epub about epublib HOT 2 OPEN

            Book book = new Book();
            Metadata metadata = book.getMetadata();

            // Set the title
            metadata.addTitle("Epublib test book 1");

            // Add an Author
            metadata.addAuthor(new Author("Joe", "Tester"));

            // Set cover image
            book.setCoverImage(new Resource(context.getAssets().open("book1/cover.jpg"), "cover.jpg" ));

            // Add Chapter 1
            book.addSection("Introduction",
                    new Resource( context.getAssets().open("book1/chapter1.html"), "chapter1.html" ));

            // Add css file
            book.getResources().add(
                    new Resource( context.getAssets().open("book1/styles.css"), "styles.css" ));

// Create EpubWriter
            EpubWriter epubWriter = new EpubWriter();