cancrexo

Hi
I’ve encountered the same error today while updating a custom payment gateway.
At last i found it was a typo mistake in the encription password.
I hope this may help you
Rergards, Cancrexo
Salu2 desde Sanxenxo – Galiza- España

Hi.
May be this topic is quite old but i just would like to point that woocommerce_variation_select_change is a name for some trigger that, afaik, it is not being used at all in add-to-cart-variation.js.
The select change just triggers in add-to-cart-variation.js, line 69 or so:

// Upon changing an option
.on( 'change', '.variations select', function( event ) {

$variation_form = $( this ).closest( '.variations_form' );
$variation_form.find( 'input[name=variation_id]' ).val( '' ).change();

$variation_form
	//.trigger( 'woocommerce_variation_select_change' )
	.trigger( 'check_variations', [ '', false ] );

[...]

Simply comment out that line and variations are working as expected.
So if you want to poke into add-to-cart-variation.js IMHO you should only take care of check_variations trigger (on line 99 or so)

Regards, Cancrexo