New Post: 'childColumnStatic' is undefined

It is coming up in IE  error details. If I change the childColumn to something incorrect the SPServices debug window will come up.

  'childColumnStatic' is undefined  jquery.SPServices-0.7.1a.min.js, line 19 character 26678

var at={opt:ar,childSelect:i,childColumnStatic:childColumnStatic,childColumnRequired:childColumnRequired}