Is there any difference between these or they serve the same purpose. If there is any snippet of code that explains the difference, it would be helpful.
They can be used to achieve the same result, however it would really depend on what you are trying to do. For example, the <sling:include> can do the same thing as the <cq:include>, but it has more parameters that you can use if you need them. You can read more about the attributes in the Sling documentation here: http://sling.apache.org/documentation/bundles/sling-scripting-jsp-taglib.html#include.
I would recommend reading these two articles if you would like more information on <sling:include> and <cq:include>:
They can be used to achieve the same result, however it would really depend on what you are trying to do. For example, the <sling:include> can do the same thing as the <cq:include>, but it has more parameters that you can use if you need them. You can read more about the attributes in the Sling documentation here: http://sling.apache.org/documentation/bundles/sling-scripting-jsp-taglib.html#include.
I would recommend reading these two articles if you would like more information on <sling:include> and <cq:include>:
The following has evaluated to null or missing:
==> liqladmin("SELECT id, value FROM metrics WHERE id = 'net_accepted_solutions' and user.id = '${acceptedAnswer.author.id}'").data.items [in template "analytics-container" at line 83, column 41]
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Tip: It's the step after the last dot 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. (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: #assign answerAuthorNetSolutions = li... [in template "analytics-container" at line 83, column 5]
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