subassembly composer 2016 encountered a severe error

[Anonymous]

 When i start subassembly composer 2016 it shows this mesage -subassembly composer encountered a severe error.

I uninstaled framework 4.5 and i instal framework 4 but again it doesnt work.

Can somebody tel me how to fix this

Thaks

[BrianHailey]

First thing I would try is a repair installation on your Civil 3D. Hopefully, this will repair the SAC install as well.