Issue in upgrade GPGA code from 8.6 to 2013

Hi,

I have a LabVIEW FPGA project whcih is designed in 8.6. When I open it in 2013 I see some of the wires in the target VIs are broken while I can open it with no issue in 8.6

Also when I try to compile the code I get 61055 internal error

Coudl you please let me knwo what shoudl I change to use 8.6 FPGA code in 2013

Thanks