WP_Query in sidebar widget area

I want to use code that in a twentysixteen theme widget area that already works in a twentytwelve theme widget area to display a random post but I can’t get it to work. Any ideas will be appreciated.

`<?php $args = array(
‘post_type’ => ‘post’,
‘orderby’ => ‘rand’,
‘posts_per_page’=> 1);

$wp_query= null;
$wp_query = new WP_Query();
$wp_query->query($args);
?>

<?php if ( $wp_query->have_posts() ) : ?>
<?php while ( $wp_query->have_posts() ) : $wp_query->the_post();?>
” title=”<?php the_title(); ?>”><?php the_post_thumbnail(); ?><?php the_title(); ?>
<?php wp_reset_postdata(); ?>

<?php endwhile; ?>
<?php endif; ?>