软件安装

The following has evaluated to null or missing: ==> content.attr.bSiteUrl [in template "WEB-INF/t/cms/www/default/content/video.html" at line 35, column 22] ---- Tip: It's the step after the last dot that caused this error, not those before it. ---- 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: #if content.attr.bSiteUrl.valueText?? [in template "WEB-INF/t/cms/www/default/content/video.html" at line 35, column 17] ----