Getting unknown property: craft\feedme\events\FieldEvent::fieldValue Getting a strange error when trying to check if a field is null when importing via FeedMe

Getting unknown property: craft\feedme\events\FieldEvent::fieldValue

use yii\base\Event;
use craft\feedme\events\FieldEvent;
use craft\feedme\events\ElementEvent;
use craft\helpers\ElementHelper;
use craft\elements\Entry;

Event::on(Fields::class, Fields::EVENT_AFTER_PARSE_FIELD, function(FieldEvent $event) {
    switch($event-&gt;feed['name']){
    case 'offers':
    if ($event-&gt;fieldHandle === 'merchants' &amp;&amp; $event-&gt;fieldValue == null) {
    $event-&gt;isValid=false;
    }
    break;
}
});
It should be $event-&gt;parsedValue - see here - https://github.com/craftcms/feed-me/blob/develop/src/services/Fields.php#L225