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freemarker.core.InvalidReferenceException: The following has evaluated to null or missing:
==> statistic.statisticPublishedBlogCommentCount [in template "skins/Pinghsu/footer.ftl" at line 65, column 15]
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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 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: ${statistic.statisticPublishedBlogCom... [in template "skins/Pinghsu/footer.ftl" at line 65, column 13]
- Reached through: #include "footer.ftl" [in template "skins/Pinghsu/index.ftl" at line 37, column 1]
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at freemarker.core.InvalidReferenceException.getInstance(InvalidReferenceException.java:134) ~[freemarker-2.3.31.jar:2.3.31]