1120：访问未定义的属性ssGlobals

Question

我有这个问题1120：在编译器中访问未定义的属性ssGlobals，

//the code---------------------------

video_u2_3.skin = ssGlobals.ssStartDir + "\\video/SkinUnderAllNoCaption.swf";

video_u2_3.source = ssGlobals.ssStartDir + "\\video/unite_2/3.mp4";