C:\AndroidStudioProjects\DodiboxLib\app\src\main\jni>C:\Users\SSivulskiy\Downloads\crystax-ndk-10.3.1\ndk-build
[armeabi-v7a] Compile++ thumb: dodilib <= local_fs_file.cpp
[armeabi-v7a] Compile++ thumb: dodilib <= local_fs_stub.cpp
[armeabi-v7a] Compile++ thumb: dodilib <= swissboxapi.cpp
C:/AndroidStudioProjects/DodiboxLib/app/src/main/jni/dodibox-core-lib-master/swissbox/src/swissboxapi.cpp:165:25: error: expected namespace name
        using namespace boost::placeholders;
                        ~~~~~~~^
C:/AndroidStudioProjects/DodiboxLib/app/src/main/jni/dodibox-core-lib-master/swissbox/src/swissboxapi.cpp:179:25: error: expected namespace name
        using namespace boost::placeholders;
                        ~~~~~~~^
2 errors generated.
make.exe: *** [C:/AndroidStudioProjects/DodiboxLib/app/src/main/obj/local/armeabi-v7a/objs/dodilib/dodibox-core-lib-master/swissbox/src/swissboxapi.o] Error 1