{"id":54653,"date":"2021-09-01T13:57:00","date_gmt":"2021-09-01T11:57:00","guid":{"rendered":"https:\/\/www.convivo.com\/blog\/joomla-4-menu-itemparams-error\/"},"modified":"2025-09-30T09:59:40","modified_gmt":"2025-09-30T07:59:40","slug":"joomla-4-menu-itemparams-error","status":"publish","type":"post","link":"https:\/\/www.convivo.com\/en\/blog\/joomla-4-menu-itemparams-error\/","title":{"rendered":"Joomla 4 Menu Item<br>Params Error"},"content":{"rendered":"<figure class=\"wp-block-post-featured-image\"><img loading=\"lazy\" decoding=\"async\" width=\"1302\" height=\"520\" src=\"https:\/\/www.convivo.com\/wp-content\/uploads\/2023\/05\/Joomla_Hero.jpg\" class=\"attachment-post-thumbnail size-post-thumbnail wp-post-image\" alt=\"Eine Fehlermeldung auf rotem Grund mit einem schwarzen Joomla Logo im Vordergrund\" style=\"object-fit:cover;\" srcset=\"https:\/\/www.convivo.com\/wp-content\/uploads\/2023\/05\/Joomla_Hero.jpg 1302w, https:\/\/www.convivo.com\/wp-content\/uploads\/2023\/05\/Joomla_Hero-300x120.jpg 300w, https:\/\/www.convivo.com\/wp-content\/uploads\/2023\/05\/Joomla_Hero-1024x409.jpg 1024w, https:\/\/www.convivo.com\/wp-content\/uploads\/2023\/05\/Joomla_Hero-768x307.jpg 768w\" sizes=\"auto, (max-width: 1302px) 100vw, 1302px\" \/><\/figure>\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/www.convivo.com\/wp-content\/uploads\/2023\/06\/Joomla_Header-1024x576.jpg\" alt=\"\" class=\"wp-image-53326\" srcset=\"https:\/\/www.convivo.com\/wp-content\/uploads\/2023\/06\/Joomla_Header-1024x576.jpg 1024w, https:\/\/www.convivo.com\/wp-content\/uploads\/2023\/06\/Joomla_Header-300x169.jpg 300w, https:\/\/www.convivo.com\/wp-content\/uploads\/2023\/06\/Joomla_Header-768x432.jpg 768w, https:\/\/www.convivo.com\/wp-content\/uploads\/2023\/06\/Joomla_Header-1536x864.jpg 1536w, https:\/\/www.convivo.com\/wp-content\/uploads\/2023\/06\/Joomla_Header.jpg 2048w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n<p>The long-awaited major update <strong>Joomla 4<\/strong> is slowly being used on more and more sites. However, converting self-developed templates is often not that easy.<br\/>Finally, the migration from <strong>Joomla<\/strong> 3 to version 4 has been completed without errors, but then you get a shock when you look at the front end. The Menu Item Params error is displayed:  <br\/><br\/>Cannot access protected property Joomla\\CMS\\Menu\\MenuItem::$params<br\/><br\/>This error is based on the changeover to the use of <strong>protected object values<\/strong> (params:protected). The problem has been known for some time, and there have been calls to make the old procedure update-proof:  <br\/><a href=\"https:\/\/issues.joomla.org\/tracker\/joomla-cms\/30463\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/issues.joomla.org\/tracker\/joomla-cms\/30463<\/a>.<br\/>However, it appears that this advice was not taken into account.<br\/><br\/>This means that they can no longer be accessed in the usual way. The old familiar version looks like this: <\/p>\n\n<pre class=\"wp-block-code\"><code>(int) $item-&gt;getParams()-&gt;get('aliasoptions');<\/code><\/pre>\n\n<p>Simply change your code locations as follows:<\/p>\n\n<pre class=\"wp-block-code\"><code>(int) $item-&gt;getParams()-&gt;get('aliasoptions');<\/code><\/pre>\n\n<p>This method for controlling protected values existed before, but did not have to be used in conjunction with the <strong>menu items<\/strong>. In addition, integer casting is used here so that the value can be processed without any problems and in a type-safe manner.<br\/>This should fix the problem and render the page as usual. If you have any further questions, please feel free to contact us.  <\/p>\n","protected":false},"excerpt":{"rendered":"<p>Finally, the migration from Joomla 3 to version 4 went smoothly, but then we were shocked by what we saw in the front end. Converting self-developed templates is not that easy to implement. <\/p>\n","protected":false},"author":12,"featured_media":54654,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[263],"tags":[],"class_list":["post-54653","post","type-post","status-publish","format-standard","hentry","category-blog-en"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Joomla 4 Menu ItemParams Error<\/title>\n<meta name=\"description\" content=\"The Menu Item Params error in Joomla 4 is based on the change in the use of protected object values (params:protected).\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.convivo.com\/en\/blog\/joomla-4-menu-itemparams-error\/\" \/>\n<meta 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