Test Pattern Generator ( from VIP Suite ) seems not to be functioning normally.

Test Pattern Generator ( from VIP Suite ) seems not to be functioning normally in Quartus 12.1 sp1.

If generated by MegaWizard it does not produce a valid VHD.

The compilation results in "Error (12007): Top-level design entity "TPG" is undefined".

In the same way I tried Clocked Video Output ( also from VIP Suite ). Its OK.

Does it seem to be a bug in Test Pattern Generator or am I missing smth?