Se ha producido un error al procesar la plantilla.
The following has evaluated to null or missing:
==> entries[0]  [in template "20099#20135#73527" at line 13, column 37]

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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 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: ${dateUtil.getDate(entries[0].getModi...  [in template "20099#20135#73527" at line 13, column 18]
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1<#assign serviceContext = staticUtil["com.liferay.portal.kernel.service.ServiceContextThreadLocal"].getServiceContext() /> 
2 
3<script type="application/ld+json"> 
4
5"@context":"http://schema.org", 
6"@type":"Blog", 
7"author": "Miguel Angel Júlvez", 
8"datePublished": "2016-04-01T00:00:00Z", 
9"headline": "Blog de Miguel Ángel Júlvez", 
10"image": "", 
11"name": "Blog de Miguel Ángel Júlvez", 
12"publisher": "Miguel Angel Júlvez", 
13"dateModified": "${dateUtil.getDate(entries[0].getModifiedDate(), "yyyy-MM-dd'T'HH:mm:ssZ", locale)}", 
14"mainEntityOfPage": "", 
15"blogPosts": [ 
16   <#list entries as entry> 
17 
18    <#assign assetRenderer = entry.getAssetRenderer() journalArticle = assetRenderer.getAssetObject() /> 
19 
20    <#assign viewURL = assetPublisherHelper.getAssetViewURL(renderRequest, renderResponse, entry) /> 
21 
22    <#if assetLinkBehavior != "showFullContent"> 
23        <#assign viewURL = assetRenderer.getURLViewInContext(renderRequest, renderResponse, viewURL) /> 
24    </#if> 
25 
26
27        "@type":"BlogPosting", 
28        "author": "Miguel Ángel Júlvez", 
29        "datePublished": "${dateUtil.getDate(entry.getPublishDate(), "yyyy-MM-dd'T'HH:mm:ssZ", locale)}", 
30        "headline": "${htmlUtil.escape(entry.getTitle(locale))}", 
31        "image": { 
32            "@type": "ImageObject", 
33            "name": "${htmlUtil.escape(entry.getTitle(locale))}", 
34            "url": "https://www.miguelangeljulvez.com/o/clean-blog-theme/images/favicon/favicon-96x96.png", 
35            "width": "300px", 
36            "height": "300px" 
37        }, 
38        "name": "${htmlUtil.escape(entry.getTitle(locale))}", 
39        "publisher": { 
40            "@type": "Organization", "url" : 
41            "https://www.miguelangeljulvez.com", 
42            "name" : "https://www.miguelangeljulvez.com", 
43            "logo" : { 
44                "@type": "ImageObject", "name": "logo", 
45                "url": "https://www.miguelangeljulvez.com/o/clean-blog-theme/images/favicon/favicon-96x96.png", 
46                "width": "96px", 
47                "height": "96px" 
48
49        }, 
50        "dateModified": "${dateUtil.getDate(entry.getModifiedDate(), "yyyy-MM-dd'T'HH:mm:ssZ", locale)}", 
51        "mainEntityOfPage": "${viewURL}" 
52
53 
54        <#if entry?has_next> 
55
56        </#if> 
57    </#list> 
58
59
60 
61</script> 
62 
63<#if entries?has_content> 
64    <div class="col-lg-10 col-md-10 mx-auto blog-list"> 
65    <#list entries as curEntry> 
66        <#assign assetRenderer = curEntry.getAssetRenderer() journalArticle = assetRenderer.getAssetObject() /> 
67 
68        <#assign viewURL = assetPublisherHelper.getAssetViewURL(renderRequest, renderResponse, curEntry) /> 
69 
70        <#if assetLinkBehavior != "showFullContent"> 
71            <#assign viewURL = assetRenderer.getURLViewInContext(renderRequest, renderResponse, viewURL) /> 
72        </#if> 
73 
74        ${serviceContext.setAttribute("viewURL", viewURL)} 
75 
76        <@liferay_journal["journal-article"] articleId=journalArticle.getArticleId() ddmTemplateKey='73518' groupId=journalArticle.getGroupId() /> 
77    </#list> 
78    </div> 
79</#if> 
80 
81<div class="clearfix"></div>