Welcome to the Treehouse Community
Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community!
Looking to learn something new?
Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.Start your free trial
stephen owen14,918 Points
Warning: call_user_func_array() expects parameter 1 to be a valid callback,
any body know how to solve this error?
Warning: call_user_func_array() expects parameter 1 to be a valid callback, function 'theme' not found or invalid function name in /app/public/wp-includes/class-wp-hook.php on line 298
Jacob Mishkin23,117 Points
The error means that you have a function called theme and it is not found. I would look and see if you have a function called theme and see what that is doing.