Had the same problem, found an easy solution:
Step 1: Create an empty folder in /wp-content/ called /wp-content/cache/
Step 2: Set permissions to /wp-content/cache/ to 755 or 777
Step 3: Open /wp.config.php and insert the following code anywhere below existing definitions.
define(‘ENABLE_CACHE’, TRUE);
The error message goes away and the feed is good to go. Awesome plugin, thanks.
Removing “<?php wp_footer(); ?>” from footer.php of your custom template will remove the Line 342 error and show the admin bar; however, it may prove problematic for anything that requires “<?php wp_footer(); ?>” to function properly.
