I created Holder Page as below, done database rebuild successfully. But in cms can't add 'virtual page' under KochiHolder page.
class KochiHolder extends Page{
private static $db = array(
);
private static $has_one = array(
'Photo' => 'Image'
);
private static $can_be_root = false;
private static $allowed_children = array('KochiPage','VirtualPage');
public function getCMSFields() {
$fields = parent::getCMSFields();
$fields->addFieldToTab("Root.Images", new UploadField('Photo'));
return $fields;
}
}// class KochiTree extends Page{