Problem Building the api2 wrapper for .net

[acxc2]

Hi
I want to program the robotino 3 using c #, but when i try to build the api2 wrapper for .net with cmake, i got:
CMake Error at CMakeLists.txt:57 (INSTALL):
install Library TARGETS given no DESTINATION!

CMake Error at CMakeLists.txt:64 (INSTALL):
install FILES given no DESTINATION!

before, i build c++ examples successfully

help please.

armando.