[partial-reconfig] need help in the last step of place and route.

["Nguyen, Thang Toan" <NguyenT6940@xxxxxxxx>]

Hi,
I am trying to do the partial reconfiguration. I almost came to the final step which is place and route of the logic of the completely expanded design. After using this command:

par -w top.ncd top_routed.ncd

I meet this error:

FATAL_ERROR:Guide:basgitaskphyspr.c:372:1.28.20.3:286 - A previous module has
   placed the comp: Pim/myRegister/myRegister/PWR_VCC_0 on the same site:
   SLICE_X43Y159 where the current guide comp PWR_VCC_0 also needs to be placed.

Please tell me what happens and how to fix it.

Thank you so much for your time.
Thang Nguyen