Migration from vs10 sdk 4.2 to vs13 4.3

Hi, I migrated my project, and now, i use vs13 but for some reason,
I open the Program.gadgeteer.diagram i see xml instead of the components i used to see and connect.
What have i did wrong?
Also, now I can’t create new gadgeteer project.
I followed that instructions: https://www.ghielectronics.com/support/netmf