Reply To: ACF warning messages appear in frontend

• John Huebner

• December 26, 2022 at 1:55 pm

I don’t know.

This is what I do know. The error in your OP is happening on a line where elementor Pro is getting a value for from the ACF field using the ACF function get_field(). This is returning no value. The only thing that will cause this is if the field does not exist or get_field() is called before ACF in initialized.

here is the line in elementor pro

list( $field, $meta_key ) = Module::get_tag_value_field( $this );

the php function expects that the value on the right of the = is a non empty array. Here is the function being called.

// For use by ACF tags
public static function get_tag_value_field( Base_Tag $tag ) {
  $key = $tag->get_settings( 'key' );

  if ( ! empty( $key ) ) {
    list( $field_key, $meta_key ) = explode( ':', $key );
    $document = Plugin::elementor()->documents->get_current();

    if ( 'options' === $field_key ) {
      $field = get_field_object( $meta_key, $field_key );
    } elseif ( ! empty( $document ) && 'loop-item' == $document::get_type() ) {
      $field = get_field_object( $field_key, get_the_ID() );
    } else {
      $field = get_field_object( $field_key, get_queried_object() );
    }

    return [ $field, $meta_key ];
  }

  return [];
}

I’m guessing that this function is failing to get the ACF field object and returning an empty array. There isn’t

Is it possible that you have a field set in an element widget that no longer exists?