fix

lib/Facade/DefaultFactoryFacade.php

@@ -0,0 +1,20 @@
+<?php
+
+
+namespace Bx\Nullable\Facade;
+
+
+use Bx\Nullable\AbstractFactory\MainAbstractFactory;
+use Wt\Core\Facade\AFacade;
+
+class DefaultFactoryFacade extends AFacade
+{
+
+    /**
+     * @return MainAbstractFactory
+     */
+    public function main()
+    {
+        return $this->app->container()->make($this->app->module()->getId().':mainAbstractFactory');
+    }
+}