Menu nawigacji
Wystąpił błąd podczas przetwarzania szablonu. 
Java method "com.liferay.portal.kernel.theme.NavItem.hasBrowsableChildren()" threw an exception when invoked on com.liferay.portal.kernel.theme.NavItem object "com.liferay.portal.kernel.theme.NavItem@ec7f"; see cause exception in the Java stack trace.

----
FTL stack trace ("~" means nesting-related):
	- Failed at: #if childNavigationItem.hasBrowsableC...  [in template "NAVIGATION-MACRO-FTL" in macro "buildChildrenNavItems" at line 34, column 17]
	- Reached through: @buildChildrenNavItems displayDepth=d...  [in template "10202#10240#31178147" at line 71, column 65]
----
1<#include "${templatesPath}/NAVIGATION-MACRO-FTL" /> 
2 
3<#if !entries?has_content> 
4	<#if themeDisplay.isSignedIn()> 
5		<div class="alert alert-info"> 
6			<@liferay.language key="there-are-no-menu-items-to-display" /> 
7		</div> 
8	</#if> 
9<#else> 
10	<#assign 
11		portletDisplay = themeDisplay.getPortletDisplay() 
12	/> 
13 
14	<#if validator.isNull(portletDisplay.getId())> 
15		<#assign navbarId = "navbar_" + stringUtil.randomId() /> 
16	<#else> 
17		<#assign navbarId = "navbar_" + portletDisplay.getId() /> 
18	</#if> 
19 
20	<div id="${navbarId}"> 
21		<ul aria-label="<@liferay.language key="site-pages" />" class="navbar-blank navbar-nav navbar-site" role="menubar"> 
22			<#assign navItems = entries /> 
23 
24			<#list navItems as navItem> 
25				<#assign showChildrenNavItems = (displayDepth != 1) && navItem.hasBrowsableChildren() /> 
26 
27				<#if navItem.isBrowsable() || showChildrenNavItems> 
28					<#assign 
29						nav_item_attr_has_popup = "" 
30						nav_item_caret = "" 
31						nav_item_css_class = "lfr-nav-item nav-item" 
32						nav_item_href_link = "" 
33						nav_item_link_css_class = "nav-link text-truncate" 
34					/> 
35 
36					<#if showChildrenNavItems> 
37						<#assign nav_item_attr_has_popup = "aria-haspopup='true'" /> 
38 
39						<#assign nav_item_caret> 
40							<span class="lfr-nav-child-toggle"> 
41								<@liferay_aui.icon 
42									image="angle-down" 
43									markupView="lexicon" 
44								/> 
45							</span> 
46						</#assign> 
47 
48						<#assign 
49							nav_item_css_class = "${nav_item_css_class} dropdown" 
50							nav_item_link_css_class = "${nav_item_link_css_class} dropdown-toggle" 
51						/> 
52					</#if> 
53 
54					<#if navItem.isBrowsable()> 
55						<#assign nav_item_href_link = "href='${navItem.getURL()}'" /> 
56					</#if> 
57 
58					<#if !navItem.isChildSelected() && navItem.isSelected()> 
59						<#assign 
60							nav_item_css_class = "${nav_item_css_class} selected active" 
61						/> 
62					</#if> 
63 
64					<li class="${nav_item_css_class}" id="layout_${portletDisplay.getId()}_${navItem.getLayoutId()}" role="presentation"> 
65						<a ${nav_item_attr_has_popup} class="${nav_item_link_css_class}" ${nav_item_href_link} ${navItem.getTarget()} role="menuitem"> 
66							<span class="text-truncate"><@liferay_theme["layout-icon"] layout=navItem.getLayout() /> ${navItem.getName()} ${nav_item_caret}</span> 
67						</a> 
68 
69						<#if showChildrenNavItems> 
70							<ul aria-expanded="false" class="child-menu dropdown-menu" role="menu"> 
71								<@buildChildrenNavItems 
72									displayDepth=displayDepth 
73									navItem=navItem 
74								/> 
75							</ul> 
76						</#if> 
77					</li> 
78				</#if> 
79			</#list> 
80		</ul> 
81	</div> 
82 
83	<@liferay_aui.script use="liferay-navigation-interaction"> 
84		var navigation = A.one('#${navbarId}'); 
85 
86		Liferay.Data.NAV_INTERACTION_LIST_SELECTOR = '.navbar-site'; 
87		Liferay.Data.NAV_LIST_SELECTOR = '.navbar-site'; 
88 
89		if (navigation) { 
90			navigation.plug(Liferay.NavigationInteraction); 
91		} 
92	</@> 
93</#if>