error: “Call to a member function needs_shipping_address() on null”

Hi,

The mentioned lines calls WooCommerce:
WC()->cart->needs_shipping_address()

I can not tell you why but for some reason, WooCommerce’s cart reporting is not working. Does this also happen if you do not have any plugin activated but WooCommerce+GTM4WP?

Hi,

It hard to replicate the issue.

It sometime happen.

Temporary solution, I will check the condition is_null(WC()->cart)

I’ve added some additional checks into the core as well:
https://github.com/duracelltomi/gtm4wp/commit/2e5a75a2ab72ed14a6b5001a3c49a3b58bf22c22

maybe the same thing

2020-04-23T13:08:31+00:00 CRITICAL Uncaught Error: Call to a member function needs_shipping_address() on null in
/public_html/wp-content/plugins/duracelltomi-google-tag-manager/integration/woocommerce.php:222
Stack trace:
#0 /public_html/wp-includes/class-wp-hook.php(289): gtm4wp_woocommerce_addglobalvars(”)
#1 /public_html/wp-includes/plugin.php(206): WP_Hook->apply_filters(”, Array)
#2 /public_html/wp-content/plugins/duracelltomi-google-tag-manager/public/frontend.php(785): apply_filters(‘gtm4wp_add_glob…’, ”, true)
#3 /public_html/wp-includes/class-wp-hook.php(285): gtm4wp_wp_header_top()
#4 /public_html/wp-includes/class-wp-hook.php(311): WP_Hook->apply_filters(NULL, Array)
#5 /public_html/wp-includes/plugin.php(478): WP_Hook->do_action(Array)
#6 /public_html/wp-includes/general-template.php(2884): do_action(‘wp_head’)
#7 /public_html/wp-content/themes/mytheme/header.php(21): wp_head()
#8 /public_html в /home/ekoleskh/public_html/wp-content/plugins/duracelltomi-google-tag-manager/integration/woocommerce.php : 222

Maybe its all because like

unset($fields[‘shipping’][‘shipping_address_1’]);

etc billing fields unset?

• This reply was modified 4 years, 7 months ago by dmzw.

@duracelltomi I will try lastest version, thanks

This issue appear when you use a PHP version above 7.2.

I switched to PHP 7.2, until will be fixed, hopefully

I have the same issue

@duracelltomi any news regarding this issue?

Hi, I too am seeing the error as recent as 10/28/2020.
Maybe the following details will be helpful:

Wordpress: 5.5.2
WooCommerce: 4.0.0
Google Tag Manager: 1.11.5

2020-10-28T15:34:33+00:00 CRITICAL Uncaught Error: Call to a member function needs_shipping_address() on null in /home/website/public_html/wordpress/wp-content/plugins/duracelltomi-google-tag-manager/integration/woocommerce.php:222
Stack trace:
#0 /home/website/public_html/wordpress/wp-includes/class-wp-hook.php(289): gtm4wp_woocommerce_addglobalvars(”)
#1 /home/website/public_html/wordpress/wp-includes/plugin.php(206): WP_Hook->apply_filters(”, Array)
#2 /home/website/public_html/wordpress/wp-content/plugins/duracelltomi-google-tag-manager/public/frontend.php(785): apply_filters(‘gtm4wp_add_glob…’, ”, true)
#3 /home/website/public_html/wordpress/wp-includes/class-wp-hook.php(285): gtm4wp_wp_header_top()
#4 /home/website/public_html/wordpress/wp-includes/class-wp-hook.php(311): WP_Hook->apply_filters(NULL, Array)
#5 /home/website/public_html/wordpress/wp-includes/plugin.php(478): WP_Hook->do_action(Array)
#6 /home/website/public_html/wordpress/wp-includes/general-template.php(3006): do_action(‘wp_head’)
#7 in /home/website/public_html/wordpress/wp-content/plugins/duracelltomi-google-tag-manager/integration/woocommerce.php on line 222

Hi,

I am also getting this very regularly.

Fatal error: Uncaught Error: Call to a member function needs_shipping_address() on null in /wp-content/plugins/duracelltomi-google-tag-manager/integration/woocommerce.php:222

Environment:

Google Tag Manager 1.11.5
Woocommerce 4.6.1
Wordpress 5.5.3
PHP 7.3.3

Stack Trace:

1.  {anonymous}()
    /wp-content/plugins/duracelltomi-google-tag-manager/integration/woocommerce.php:222
2.  gtm4wp_woocommerce_addglobalvars('')
    /wp-includes/class-wp-hook.php:289
3.  WP_Hook->apply_filters('', Array(2))
    /wp-includes/plugin.php:206
4.  apply_filters('gtm4wp_add_global_vars', '', true)
    /wp-content/plugins/duracelltomi-google-tag-manager/public/frontend.php:785
5.  gtm4wp_wp_header_top()
    /wp-includes/class-wp-hook.php:285
6.  WP_Hook->apply_filters(null, Array(1))
    /wp-includes/class-wp-hook.php:311
7.  WP_Hook->do_action(Array(1))
    /wp-includes/plugin.php:478
8.  do_action('wp_head')
    /wp-includes/general-template.php:3009
9.  wp_head()
    /wp-content/themes/xxx/header.php:18
10. require_once('/var/www/...')
    /wp-includes/template.php:730
11. load_template('/var/www/...', true, Array(0))
    /wp-includes/template.php:676
12. locate_template(Array(1), true, true, Array(0))
    /wp-includes/general-template.php:48
13. get_header()
    /wp-content/themes/xxx/404.php:8
14. include('/var/www/...')
    /wp-includes/template-loader.php:106
15. require_once('/var/www/...')
    /wp-blog-header.php:19
16. require('/var/www/...')
    /index.php:17

Context:

URL            : /blogs/wp-json/wp/v2/users/
HTTP Method    : GET
HTTP Status    : 404
isSSL          : Yes
Current Filter : wp_head, gtm4wp_add_global_vars

Hi Everyone,

v1.11.6 includes some fixes that could prevent this exception from being happen again.