hi, when trying to compile it, it says: Compiling CbcBranchUser.cpp Compiling CbcCompareUser.cpp gmake[1]: *** No rule to make target `SunOS-g/CbcHeuristicUserB.o', needed by `testit'. Stop. gmake[1]: Leaving directory `/home/sungritzmann2/devries/COIN/Cbc/Samples' gmake: *** [sample] Error 2 any advise? sven