Une erreur s'est produite lors du traitement du gabarit.
The following has evaluated to null or missing:
==> .vars['reserved-article-display-date']  [in template "20116#20160#5099213" at line 46, column 88]

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Tip: It's the final [] step that caused this error, not those before it.
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Tip: If the failing expression is known to be legally refer to something that's sometimes null or missing, either specify a default value like myOptionalVar!myDefault, or use <#if myOptionalVar??>when-present<#else>when-missing</#if>. (These only cover the last step of the expression; to cover the whole expression, use parenthesis: (myOptionalVar.foo)!myDefault, (myOptionalVar.foo)??
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FTL stack trace ("~" means nesting-related):
	- Failed at: ${dateHelperService.displayShortDate(...  [in template "20116#20160#5099213" at line 46, column 13]
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1<!-- Webmag - breve --> 
2 
3<#setting locale = locale /> 
4<#assign serviceContext = staticUtil["com.liferay.portal.kernel.service.ServiceContextThreadLocal"].getServiceContext() /> 
5<#assign themeDisplay = serviceContext.getThemeDisplay() /> 
6<#assign currentUrl = themeDisplay.getPortalURL() + themeDisplay.getURLCurrent() /> 
7 
8<#-- Récupération de DateHelper pour le format date --> 
9<#assign dateHelperService = serviceLocator.findService("eu.strasbourg.utils.api.DateHelperService") /> 
10 
11<#-- <@liferay_util["html-top"]> 
12    <meta property="og:title" content="${title.getData()?html}" /> 
13    <meta property="og:description" content="${chapo.getData()?replace("<[^>]*>", "", "r")?html}" /> 
14    <meta property="og:url" content="${currentUrl}" /> 
15    <#if image.getData()?has_content> 
16        <#assign imageUrl = themeDisplay.getPortalURL() + image.getData() /> 
17    </#if> 
18    <#if !image.getData()?has_content> 
19        <#assign layout = themeDisplay.getLayout() /> 
20        <#if layout.expandoBridge.getAttribute('image')?has_content> 
21            <#assign imageUrl = themeDisplay.getPortalURL() + layout.expandoBridge.getAttribute('image') /> 
22        </#if> 
23    </#if> 
24    <#if imageUrl?has_content> 
25        <#assign imageUrl = imageUrl?replace('https:','http:') /> 
26        <#assign AssetPublisherTemplateHelper = serviceLocator.findService("eu.strasbourg.utils.api.AssetPublisherTemplateHelperService") /> 
27        <#assign taille = AssetPublisherTemplateHelper.getImageWidthHeight(imageUrl) /> 
28        <meta property="og:image" content="${imageUrl}"/> 
29        <meta property="og:image:width" content="${taille?keep_before(',')}"/> 
30        <meta property="og:image:height" content="${taille?keep_after(',')}"/> 
31    </#if> 
32    <meta property="og:title" content="${title.getData()?html}" /> 
33    <meta property="og:description" content="${content.getData()?replace("<[^>]*>", "", "r")?html}" /> 
34    <meta property="og:url" content="${currentUrl}" /> 
35    <#assign imageUrl = 'http://www.touch-as-strasbourg.com/media/uploaded/sites/10468/partenaire/57a9e032cf93f_eurometropole.png' /> 
36    <meta property="og:image:width" content="500"/> 
37    <meta property="og:image:height" content="300"/> 
38</@> 
39--> 
40 
41<main class="seu-container" style="margin-bottom: 50px"> 
42    <div class="detail-line"> 
43        <div class="filler"></div> 
44        <p class="seu-published"> 
45            <@liferay_ui.message key="eu.published-on" />  
46            ${dateHelperService.displayShortDate(dateHelperService.convertStringToDate(.vars['reserved-article-display-date'].getData(), "EEE, dd MMM yyyy hh:mm:ss Z"), locale)}  
47           - <@liferay_ui.message key="eu.modified-on" />  
48            ${dateHelperService.displayShortDate(dateHelperService.convertStringToDate(.vars['reserved-article-modified-date'].getData(), "EEE, dd MMM yyyy hh:mm:ss Z"), locale)}  
49        </p> 
50    </div> 
51    <h1> 
52        ${title.getData()} 
53    </h1> 
54    <div class="hat"> 
55        <div> 
56            ${chapo.getData()} 
57        </div> 
58    </div> 
59    <div class="rte"> 
60        ${content.getData()} 
61    </div> 
62</main> 
63<style> 
64.search-asset-portlet, .page-header { 
65    display: none !important; 
66
67</style>