The following has evaluated to null or missing:
==> request.getParameter("articleId")  [in template "20097#20123#198077" at line 2, column 46]

----
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)??
----

----
FTL stack trace ("~" means nesting-related):
	- Failed at: articleId = request.getParameter("art...  [in template "20097#20123#198077" at line 2, column 34]
----

1<#assign 

2				 articleId = request.getParameter("articleId") 

3				 groupId = getterUtil.getLong(request.getParameter("groupId")) 

4				 /> 

5		<@liferay_journal["journal-article"] 

6									 articleId=articleId 

7									 ddmTemplateKey="198117" 

8									 groupId=groupId 

9									 />