Missing Argument 1 for WC_Order::__construct()

i have the same problem after I update wordpress to 4.0 and woocommerce to 2.2.2

This message is actually caused because you have some plugin using WC_Order the wrong way.

Probably something like:

$order = new WC_Order();
$order->populate( $some_var );

And need to be:

$order = new WC_Order( $order_id );

Or better for 2.2:

$order = wc_get_order( $order_id );

Hi Claudio

I used your code and it worked for this error, however then I was given a new error related to the populate command. See here :

Fatal error: Call to a member function populate() on a non-object in /home/…./public_html/th…..com/wp-content/themes/theleader/woocommerce/myaccount/my-orders.php on line 44

Do you know what code to add to fix this error?

Thank you in advance, any help is much appreciated!!

I think I need to edit the line $order->populate( $some_var ); to something else to fix this error. Any idea what to edit it to?

Thanks!!

@mccju786 dont’t use the populate() method, use the new wc_get_order() function.
If you want, paste your template code int the pastebin.com and I tell you what to you do to fix it.

Thank you so much!

See here https://pastebin.com/yS6S6ZdU

Let me know what I need to change,

Appreciate it so much
Thanks

Having a similar issue as well after updating to 2.2.2

Seeing this error on the checkout page after item has been purchased

Warning: Missing argument 1 for WC_Order::__construct(), called in /wp-content/plugins/groups-woocommerce/lib/core/class-groups-ws-handler.php on line 287 and defined in /wp-content/plugins/woocommerce/includes/class-wc-order.php on line 19

Warning: Missing argument 1 for WC_Order::__construct(), called in /wp-content/plugins/groups-woocommerce/lib/core/class-groups-ws-handler.php on line 129 and defined in /public_html/wp-content/plugins/woocommerce/includes/class-wc-order.php on line 19

Unfortunately I’m not a plugin developer so am a bit confused.
Thanks

Changing line 320 in the theme file from
$order = new WC_Order();

to
$order = new WC_Order();

fixed the error showing issue here. Much appreciated.

Sorry mine doesn’t seem to be theme related. It is referencing the groups-woocommerce plugin.

Also the changes you posted are the same line of code. Were they supposed to be different?

Thanks

Hi Claudio

I seemed to have fixed it by replacing

$order = new WC_Order();
$order->populate( $some_var );

with

$order = new WC_Order( $order_id );

Thanks!

Replacing

$order = new WC_Order();
$order->populate( $some_var );

with

$order = new WC_Order( $order_id );

done…
It worked!… at least for now (knowing wordpress, with an incoming future update it might not… who knows)… thanks for the code claudio and mccju for the corroboration.

good to hear rex, such a relief when you find a fix!

Did you need to replace every instance of $order = new WC_Order();

with

$order = new WC_Order( $order_id );

Thanks

Hello, I’m getting the same error after upgrading woocommerce to 2.2:

WARNING: MISSING ARGUMENT 1 FOR WC_ORDER::__CONSTRUCT(), CALLED IN
/HOME/FASHI833/PUBLIC_HTML/WP-CONTENT/THEMES/LABOMBA/WOOCOMMERCE/MYACCOUNT/MY-ORDERS.PHP
ON LINE 42 AND DEFINED IN /HOME/FASHI833/PUBLIC_HTML/WP-CONTENT/PLUGINS/WOOCOMMERCE/INCLUDES/CLASS-WC-ORDER.PHP ON LINE 19

I saw here that the solution that worked for the rest was replacing:

$order = new WC_Order();
$order->populate( $some_var );

with

$order = new WC_Order( $order_id );

Since I’m new to all of this, could you please let me know which .php file do I need to add this to?

Thanks in advance.

Replacing

$order = new WC_Order();
$order->populate( $some_var );

with

$order = new WC_Order( $order_id );

Thank you very much.