How Call resource categories

[dondomainer]

I try to call resource categories with

<div class="secondaryContent categoryList">
        <h3>{xen:phrase categories}</h3>
        {xen:raw $categorySidebarHtml}
    </div>

or

<ol>
<xen:foreach loop="$categories" value="$_category">
    <li class="{xen:if '{$_category.resource_category_id} == {$category.resource_category_id}', selected}">
        <a href="{xen:link resources/categories, $_category}" {xen:if $_category.category_description, 'title="{xen:helper striphtml, $_category.category_description}" class="Tooltip" data-tipclass="resourceCategoryTooltip"'}>{$_category.category_title}</a>
        <span class="count">{xen:number $_category.resource_count}</span>
    </li>
    <xen:if is="{$_category.resource_category_id} == {$showChildId}">
        {xen:raw $childCategoryHtml}
    </xen:if>
</xen:foreach>
</ol>

But not work...