part.xml was in wrong folder, must be "admin/forms"

admin/src/View/Part/HtmlView.php

@@ -1,28 +1,74 @@
 <?php
-/**
-* @package		Depot.Administrator
-* @subpackage	com_depot
-* @author		Thomas Kuschel <thomas@kuschel.at>
-* @copyright	(C) 2023 KW4NZ, <https://www.kuschel.at>
-* @license		GNU General Public License version 2 or later; see LICENSE.md
-* @since		0.0.3
-*/
-
 namespace KW4NZ\Component\Depot\Administrator\View\Part;
+
+defined('_JEXEC') or die;
+
+use Joomla\CMS\Factory;
+use Joomla\CMS\Helper\ContentHelper;
+use Joomla\CMS\Language\Text;
+use Joomla\CMS\MVC\View\GenericDataException;
 use Joomla\CMS\MVC\View\HtmlView as BaseHtmlView;
+use Joomla\CMS\Toolbar\Toolbar;
+use Joomla\CMS\Toolbar\ToolbarHelper;
 
-\defined('_JEDEC') or die;
-
+/**
+ * View to edit an article.
+ *
+ * @since  1.6
+ */
 class HtmlView extends BaseHtmlView
 {
+	/**
+	 * The \JForm object
+	 *
+	 * @var  \JForm
+	 */
 	protected $form;
+
+	/**
+	 * The active item
+	 *
+	 * @var  object
+	 */
 	protected $item;
 
+	/**
+	 * The model state
+	 *
+	 * @var  object
+	 */
+	protected $state;
+
+	/**
+	 * The actions the user is authorised to perform
+	 *
+	 * @var  \JObject
+	 */
+	protected $canDo;
+
+	/**
+	 * Execute and display a template script.
+	 *
+	 * @param   string  $tpl  The name of the template file to parse; automatically searches through the template paths.
+	 *
+	 * @return  mixed  A string if successful, otherwise an Error object.
+	 *
+	 * @throws \Exception
+	 * @since   1.6
+	 */
 	public function display($tpl = null)
 	{
 		$this->form = $this->get('Form');
 		$this->item = $this->get('Item');
+		$this->state = $this->get('State');
 
-		parent::display($tpl);
+		if (count($errors = $this->get('Errors'))) {
+			throw new GenericDataException(implode("\n", $errors), 500);
+		}
+
+		// $this->addToolbar();
+
+		return parent::display($tpl);
 	}
-}
+
+}