Custom post type not working

Fatal error: Call to undefined function twentythirteen_entry_meta() in E:\Program Files\wamp\www\kate\wp-content\plugins\advent-calender\public\views\single-advent-calendar-entry.php on line 37

What version is the latest, please name it by version number, makes it easier to help.
What theme are you using? Just remove line 37 from “advent-calender\public\views\single-advent-calendar-entry.php”.

Does it help?

If you are not using the twentythirteen theme you could just make a single-advent-calendar-entry.php version of your theme single.php. I think only this is needed ` <?php if ( has_post_thumbnail() && ! post_password_required() ) : ?>
<div class=”entry-thumbnail”>
<?php the_post_thumbnail( ‘advent-calendar-full-image’ ); ?>`

And if you want to display the title you need also the part to display the custom post type title:

<?php if ( is_single() ) : ?>
	<h1 class="entry-title">
		<?php the_title(); ?> </h1>
<?php else : ?>
	<h1 class="entry-title">
		<a href="<?php the_permalink(); ?>" rel="bookmark"><?php the_title(); ?></a>
		</h1>
<?php endif; // is_single() ?>

Thanks @boborg for the help, what theme are you using? Did you had the same problem? I think I should add some notes about how to use the plugin in a theme which is not twentythirteen (copy the own single template to the plugin ones and make sure to include title and thumbnail output)

I am using a Premium Theme from SoloStream. So yes same issues.

Released Advent calendar version 1.0.2 which fixes this issue.