Hi! I cloned the git repository following the instructions from the wiki. But I get the following error on Windows using VS2013 and the command "b2 address-model=64 link=static". Can someone please give me a clue? Thank you very much! Best regards Mello "Name clash for 'libboost_system-vc120-mt-1_58.lib' Tried to build the target twice, with property sets having ..." Building the Boost C++ Libraries. Performing configuration checks - symlinks supported : no - junctions supported : yes - hardlinks supported : yes - arm : no (cached) - mips1 : no (cached) - power : no (cached) - sparc : no (cached) - x86 : yes (cached) - has_icu builds : no warning: Graph library does not contain MPI-based parallel components. note: to enable them, add "using mpi ;" to your user-config.jam - zlib : no - iconv (libc) : no - iconv (separate) : no - icu : no - icu (lib64) : no - message-compiler : yes - compiler-supports-ssse3 : yes - compiler-supports-avx2 : yes - gcc visibility : no - long double support : yes warning: skipping optional Message Passing Interface (MPI) library. note: to enable MPI support, add "using mpi ;" to user-config.jam. note: to suppress this message, pass "--without-mpi" to bjam. note: otherwise, you can safely ignore this message. - zlib : no (cached) error: Name clash for 'libboost_system-vc120-mt-1_58.lib' error: error: Tried to build the target twice, with property sets having error: these incompabile properties: error: error: - <warnings>all error: - <architecture>x86 <warnings>on error: error: Please make sure to have consistent requirements for these error: properties everywhere in your project, especially for install error: targets.