[Error: The following has evaluated to null or missing: ==> Channel.getParent().getParent() [in template "政务信息公开_list" at line 55, column 94] ---- 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)?? ---- ---- FTL stack trace ("~" means nesting-related): - Failed at: #if (item.get("id") == Channel.get("i... [in template "政务信息公开_list" at line 55, column 7] - Reached through: @cms_channels id="政府信息公开_26" filter="... [in template "政务信息公开_list" at line 52, column 7] ----]