After update "undefined function wpcf7_add_shortcode()"

Change it to:

add_action( 'init', 'xxxxx_wpcf7_add_shortcode' );

function xxxxx_wpcf7_add_shortcode() {
	wpcf7_add_shortcode('postdropdown', 'createbox', true);
}

This did not solve the problem for me… any other ideas?!

Actually, this did it:
add_action( 'init', 'xxxxx_wpcf7_add_shortcode', 5 ); (adding the ‘5’ for priority)

hmm, even adding th 5 didn’t help any other suggestions? I updated to 3.5.3

I’m having the same problem, updated to 3.5.3. Suggested solution didn’t work for me.

I’m having the same one, updated to 3.5.4. Please let me know if someone knows the solution.
Thank you.

Any news, fixes? Just upgraded one website

@ddt: If you require assistance then, as per the Forum Welcome, please post your own topic. This topic is 6 months old and references an old version of WordPress.

Closing.