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WordPress WordPress Theme Development WordPress Header and Footer Templates Porting existing headers and footers into WordPress

stephen owen
stephen owen
14,918 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

thanks

1 Answer

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.