请教，CATIA VB开发下，获取当前装配体的问题

想设置一个按钮，移动当前装配体下的一个物体cube
可运行到第二句 CATIA.ActiveDocument   就出现问题，请高手帮忙解答一下，非常感谢

Dim productDocument1 As ProductDocument
Set productDocument1 = CATIA.ActiveDocument    ’运行不下去了
Dim product1 As Product
Set product1 = productDocument1.Product
Dim products1 As Products
Set products1 = product1.Products
Dim product2 As Product
Set product2 = products1.Item("cube.1")
Dim move1 As Move
Set move1 = product2.Move
Set move1 = move1.MovableObject
Dim arrayOfVariantOfDouble1(11)
arrayOfVariantOfDouble1(0) = 1#
arrayOfVariantOfDouble1(1) = 0#
arrayOfVariantOfDouble1(2) = 0#
arrayOfVariantOfDouble1(3) = 0#
arrayOfVariantOfDouble1(4) = 1#
arrayOfVariantOfDouble1(5) = 0#
arrayOfVariantOfDouble1(6) = 0#
arrayOfVariantOfDouble1(7) = 0#
arrayOfVariantOfDouble1(8) = 1#
arrayOfVariantOfDouble1(9) = 10
arrayOfVariantOfDouble1(10) = 10
arrayOfVariantOfDouble1(11) = 0#
Set move1Variant = move1
move1Variant.Apply arrayOfVariantOfDouble1