Boost Error

[RishabGargeya]

Hi,

I tried installing your converter, but I keep on running into the following error:

Linking: mxnet_to_caffe
g++ objs/mxnet_to_caffe.o objs/mxnet_my_c_predict_api.o  -lm -lboost_serialization -lboost_filesystem -fopenmp -Wl,--whole-archive /home/rg203/work/caffe/build/lib/libcaffe.a -Wl,--no-whole-archive -lprotobuf -lglog -lgflags -llmdb -lleveldb /usr/lib/x86_64-linux-gnu/hdf5/serial/libhdf5.so /usr/lib/x86_64-linux-gnu/hdf5/serial/libhdf5_hl.so -lboost_system -lboost_thread  -lopenblas  -L/usr/local/cuda/lib64 -lcudart -lcublas -lcurand -lcudnn  /home/rg203/work/mxnet/lib/libmxnet.so `pkg-config --libs opencv` -o "mxnet_to_caffe"
/home/rg203/work/caffe/build/lib/libcaffe.a(layer_factory.o): In function `boost::python::api::object::object()':
/usr/include/boost/python/object_core.hpp:504: undefined reference to `_Py_NoneStruct'
/home/rg203/work/caffe/build/lib/libcaffe.a(layer_factory.o): In function `boost::python::api::const_attribute_policies::get(boost::python::api::object const&, char const*)':
/usr/include/boost/python/object_attributes.hpp:74: undefined reference to `boost::python::api::getattr(boost::python::api::object const&, char const*)'
/home/rg203/work/caffe/build/lib/libcaffe.a(layer_factory.o): In function `boost::python::str::str(char const*)':
/usr/include/boost/python/str.hpp:150: undefined reference to `boost::python::detail::str_base::str_base(char const*)'
/home/rg203/work/caffe/build/lib/libcaffe.a(layer_factory.o): In function `_object* boost::python::expect_non_null<_object>(_object*)':
/usr/include/boost/python/errors.hpp:45: undefined reference to `boost::python::throw_error_already_set()'
/home/rg203/work/caffe/build/lib/libcaffe.a(layer_factory.o): In function `boost::python::error_already_set::error_already_set(boost::python::error_already_set const&)':
/usr/include/boost/python/errors.hpp:17: undefined reference to `vtable for boost::python::error_already_set'
/home/rg203/work/caffe/build/lib/libcaffe.a(layer_factory.o): In function `boost::shared_ptr<caffe::Layer<float> > caffe::GetPythonLayer<float>(caffe::LayerParameter const&)':
/home/rg203/work/caffe/src/caffe/layer_factory.cpp:244: undefined reference to `Py_Initialize'
/home/rg203/work/caffe/src/caffe/layer_factory.cpp:246: undefined reference to `boost::python::import(boost::python::str)'
/home/rg203/work/caffe/src/caffe/layer_factory.cpp:250: undefined reference to `PyErr_Print'
/home/rg203/work/caffe/src/caffe/layer_factory.cpp:249: undefined reference to `boost::python::error_already_set::~error_already_set()'
/home/rg203/work/caffe/build/lib/libcaffe.a(layer_factory.o): In function `boost::shared_ptr<caffe::Layer<double> > caffe::GetPythonLayer<double>(caffe::LayerParameter const&)':
/home/rg203/work/caffe/src/caffe/layer_factory.cpp:244: undefined reference to `Py_Initialize'
/home/rg203/work/caffe/src/caffe/layer_factory.cpp:246: undefined reference to `boost::python::import(boost::python::str)'
/home/rg203/work/caffe/src/caffe/layer_factory.cpp:250: undefined reference to `PyErr_Print'
/home/rg203/work/caffe/src/caffe/layer_factory.cpp:249: undefined reference to `boost::python::error_already_set::~error_already_set()'
/home/rg203/work/caffe/build/lib/libcaffe.a(layer_factory.o): In function `boost::python::converter::extract_rvalue<boost::shared_ptr<caffe::PythonLayer<float> > >::operator()() const':
/usr/include/boost/python/extract.hpp:186: undefined reference to `boost::python::converter::rvalue_from_python_stage2(_object*, boost::python::converter::rvalue_from_python_stage1_data&, boost::python::converter::registration const&)'
/home/rg203/work/caffe/build/lib/libcaffe.a(layer_factory.o): In function `boost::python::converter::extract_rvalue<boost::shared_ptr<caffe::PythonLayer<double> > >::operator()() const':
/usr/include/boost/python/extract.hpp:186: undefined reference to `boost::python::converter::rvalue_from_python_stage2(_object*, boost::python::converter::rvalue_from_python_stage1_data&, boost::python::converter::registration const&)'
/home/rg203/work/caffe/build/lib/libcaffe.a(layer_factory.o): In function `boost::python::detail::returnable<boost::python::api::object>::type boost::python::call<boost::python::api::object, caffe::LayerParameter>(_object*, caffe::LayerParameter const&, boost::type<boost::python::api::object>*)':
/usr/include/boost/python/call.hpp:66: undefined reference to `PyEval_CallFunction'
/home/rg203/work/caffe/build/lib/libcaffe.a(layer_factory.o): In function `boost::python::converter::extract_rvalue<boost::shared_ptr<caffe::PythonLayer<float> > >::extract_rvalue(_object*)':
/usr/include/boost/python/extract.hpp:166: undefined reference to `boost::python::converter::rvalue_from_python_stage1(_object*, boost::python::converter::registration const&)'
/home/rg203/work/caffe/build/lib/libcaffe.a(layer_factory.o): In function `boost::python::converter::extract_rvalue<boost::shared_ptr<caffe::PythonLayer<double> > >::extract_rvalue(_object*)':
/usr/include/boost/python/extract.hpp:166: undefined reference to `boost::python::converter::rvalue_from_python_stage1(_object*, boost::python::converter::registration const&)'
/home/rg203/work/caffe/build/lib/libcaffe.a(layer_factory.o): In function `boost::python::converter::registration const& boost::python::converter::detail::registry_lookup2<boost::shared_ptr<caffe::PythonLayer<float> > const volatile>(boost::shared_ptr<caffe::PythonLayer<float> > const volatile& (*)())':
/usr/include/boost/python/converter/registered.hpp:87: undefined reference to `boost::python::converter::registry::lookup(boost::python::type_info)'
/home/rg203/work/caffe/build/lib/libcaffe.a(layer_factory.o): In function `boost::python::converter::registration const& boost::python::converter::detail::registry_lookup2<boost::shared_ptr<caffe::PythonLayer<double> > const volatile>(boost::shared_ptr<caffe::PythonLayer<double> > const volatile& (*)())':
/usr/include/boost/python/converter/registered.hpp:87: undefined reference to `boost::python::converter::registry::lookup(boost::python::type_info)'
/home/rg203/work/caffe/build/lib/libcaffe.a(layer_factory.o): In function `boost::python::converter::detail::value_arg_to_python<caffe::LayerParameter>::value_arg_to_python(caffe::LayerParameter const&)':
/usr/include/boost/python/converter/arg_to_python.hpp:209: undefined reference to `boost::python::converter::detail::arg_to_python_base::arg_to_python_base(void const volatile*, boost::python::converter::registration const&)'
/home/rg203/work/caffe/build/lib/libcaffe.a(layer_factory.o): In function `void boost::python::converter::detail::register_shared_ptr0<caffe::PythonLayer<float> >(boost::shared_ptr<caffe::PythonLayer<float> >*)':
/usr/include/boost/python/converter/registered.hpp:72: undefined reference to `boost::python::converter::registry::lookup_shared_ptr(boost::python::type_info)'
/home/rg203/work/caffe/build/lib/libcaffe.a(layer_factory.o): In function `void boost::python::converter::detail::register_shared_ptr0<caffe::PythonLayer<double> >(boost::shared_ptr<caffe::PythonLayer<double> >*)':
/usr/include/boost/python/converter/registered.hpp:72: undefined reference to `boost::python::converter::registry::lookup_shared_ptr(boost::python::type_info)'
/home/rg203/work/caffe/build/lib/libcaffe.a(layer_factory.o): In function `boost::python::converter::registration const& boost::python::converter::detail::registry_lookup2<caffe::LayerParameter const volatile>(caffe::LayerParameter const volatile& (*)())':
/usr/include/boost/python/converter/registered.hpp:87: undefined reference to `boost::python::converter::registry::lookup(boost::python::type_info)'
/home/rg203/work/caffe/build/lib/libcaffe.a(layer_factory.o):(.data.DW.ref._ZTIN5boost6python17error_already_setE[DW.ref._ZTIN5boost6python17error_already_setE]+0x0): undefined reference to `typeinfo for boost::python::error_already_set'
collect2: error: ld returned 1 exit status
Makefile:30: recipe for target 'mxnet_to_caffe' failed
make: *** [mxnet_to_caffe] Error 1

Is this an issue with my boost installation? My caffe install seems to be working fine though. I am working off of the latest caffe pull.

Any ideas? Thanks for the help!

[pertusa]

It seems that boost-python needs to be linked. Try to add -lboost_python to the CAFFE_DEPENDENCES in the Makefile, and please let me know if it works to update it.

[RishabGargeya]

Thanks for the response. I added -lboost_python to the Makefile but ran into the same error.
I then tried installing boost from source, remaking caffe, and then running make but I get the following:

Linking: mxnet_to_caffe
g++ objs/mxnet_to_caffe.o objs/mxnet_my_c_predict_api.o  -lm -lboost_serialization -lboost_filesystem -fopenmp -Wl,--whole-archive /home/rg203/work/caffe/build/lib/libcaffe.a -Wl,--no-whole-archive -lprotobuf -lglog -lgflags -llmdb -lleveldb /usr/lib/x86_64-linux-gnu/hdf5/serial/libhdf5.so /usr/lib/x86_64-linux-gnu/hdf5/serial/libhdf5_hl.so -lboost_system -lboost_thread -lboost_python -I/home/rg203/work/boost_1_62_0 -lopenblas  -L/usr/local/cuda/lib64 -lcudart -lcublas -lcurand -lcudnn -L/home/rg203/work/boost_1_62_0/stage/lib  /home/rg203/work/mxnet/lib/libmxnet.so `pkg-config --libs opencv` -L/home/rg203/work/boost_1_62_0/stage/lib -lboost_python -o "mxnet_to_caffe"
/home/rg203/work/caffe/build/lib/libcaffe.a(layer_factory.o): In function `boost::python::api::object::object()':
/home/rg203/work/boost_1_62_0/boost/python/object_core.hpp:403: undefined reference to `_Py_NoneStruct'
/home/rg203/work/caffe/build/lib/libcaffe.a(layer_factory.o): In function `boost::shared_ptr<caffe::Layer<float> > caffe::GetPythonLayer<float>(caffe::LayerParameter const&)':
/home/rg203/work/caffe/src/caffe/layer_factory.cpp:244: undefined reference to `Py_Initialize'
/home/rg203/work/caffe/src/caffe/layer_factory.cpp:250: undefined reference to `PyErr_Print'
/home/rg203/work/caffe/build/lib/libcaffe.a(layer_factory.o): In function `boost::shared_ptr<caffe::Layer<double> > caffe::GetPythonLayer<double>(caffe::LayerParameter const&)':
/home/rg203/work/caffe/src/caffe/layer_factory.cpp:244: undefined reference to `Py_Initialize'
/home/rg203/work/caffe/src/caffe/layer_factory.cpp:250: undefined reference to `PyErr_Print'
/home/rg203/work/caffe/build/lib/libcaffe.a(layer_factory.o): In function `boost::python::detail::returnable<boost::python::api::object>::type boost::python::call<boost::python::api::object, caffe::LayerParameter>(_object*, caffe::LayerParameter const&, boost::type<boost::python::api::object>*)':
/home/rg203/work/boost_1_62_0/boost/python/call.hpp:66: undefined reference to `PyEval_CallFunction'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyUnicodeUCS4_FromEncodedObject'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyNumber_InPlaceDivide'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyNumber_InPlaceRemainder'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PySlice_New'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyList_Sort'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PySequence_GetSlice'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyObject_SetAttrString'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyType_IsSubtype'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyList_Insert'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyExc_RuntimeError'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyComplex_Type'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyDict_Copy'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyDict_Size'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyString_Size'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyUnicode_Type'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyStaticMethod_New'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyList_Reverse'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyErr_NoMemory'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyString_FromStringAndSize'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyBaseObject_Type'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyList_Type'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyModule_Type'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyNumber_InPlaceLshift'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyDict_Keys'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyString_InternFromString'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyNumber_Subtract'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyObject_DelItem'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyNumber_InPlaceMultiply'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `_PyType_Lookup'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyErr_Clear'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyArg_ParseTupleAndKeywords'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyCallable_Check'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyNumber_Xor'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyLong_AsUnsignedLongLong'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyInt_AsLong'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyErr_ExceptionMatches'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyMethod_New'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyUnicodeUCS4_AsWideChar'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyNumber_Or'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyNumber_InPlaceOr'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyExc_TypeError'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyComplex_RealAsDouble'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyErr_SetObject'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyLong_AsUnsignedLong'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PySequence_DelSlice'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyType_Ready'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyObject_IsTrue'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyNumber_Add'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyTuple_GetItem'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyDict_Clear'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyObject_Size'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyObject_RichCompare'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyLong_AsLongLong'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyBool_Type'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyNumber_Multiply'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyErr_WarnEx'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyString_AsString'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyObject_GetAttr'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyTuple_Type'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyCFunction_Type'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyDict_GetItem'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyMethod_Type'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyTuple_New'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyNumber_InPlaceRshift'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyString_FromFormat'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyExc_ImportError'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyExc_AttributeError'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyErr_Occurred'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyWeakref_NewRef'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyNumber_Remainder'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyComplex_ImagAsDouble'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyExc_ValueError'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyNumber_And'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PySequence_SetSlice'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyImport_ImportModule'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyExc_OverflowError'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyClass_Type'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyLong_Type'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyString_FromString'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyDict_Type'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyRun_FileExFlags'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyFile_AsFile'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyObject_CallFunction'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyErr_SetString'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyObject_IsInstance'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `Py_InitModule4_64'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyList_Append'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyMem_Free'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyType_Type'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyProperty_Type'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyDict_Values'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyObject_ClearWeakRefs'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyInt_Type'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `_PyObject_New'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyInt_FromLong'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyDict_New'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyRun_StringFlags'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyNumber_InPlaceAdd'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyImport_Import'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyFile_FromString'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyErr_NewException'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `_Py_NotImplementedStruct'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyObject_GetItem'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyEval_GetGlobals'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyExc_ReferenceError'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyObject_SetItem'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyDict_Items'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `_PyEval_SliceIndex'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyDict_GetItemString'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyNumber_Lshift'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyBool_FromLong'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyNumber_Divide'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyFloat_Type'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyExc_IndexError'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyNumber_Rshift'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyNumber_InPlaceSubtract'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyIter_Next'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyString_Type'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyExc_StopIteration'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyType_GenericAlloc'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyDict_Update'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyObject_CallMethod'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyNumber_InPlaceAnd'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyObject_GetAttrString'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyMem_Malloc'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyList_New'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyErr_Format'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyObject_SetAttr'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyNumber_InPlaceXor'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyCFunction_NewEx'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyLong_FromUnsignedLong'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyStaticMethod_Type'
/home/rg203/work/boost_1_62_0/stage/lib/libboost_python.so: undefined reference to `PyTuple_Size'
collect2: error: ld returned 1 exit status
Makefile:30: recipe for target 'mxnet_to_caffe' failed
make: *** [mxnet_to_caffe] Error 1

Is this still an issue with linking boost-python?
Here is my Makefile for reference:

TARGET=./mxnet_to_caffe

include config.mk

OBJSCPP = \
objs/mxnet_to_caffe.o \
objs/mxnet_my_c_predict_api.o 

CC = g++
LINKER = g++

# CAFFE DEPS
CAFFE_DEPENDENCES= -Wl,--whole-archive $(LIBCAFFE)/build/lib/libcaffe.a -Wl,--no-whole-archive -lprotobuf -lglog -lgflags -llmdb -lleveldb /usr/lib/x86_64-linux-gnu/hdf5/serial/libhdf5.so /usr/lib/x86_64-linux-gnu/hdf5/serial/libhdf5_hl.so -lboost_system -lboost_thread -lboost_python -I/home/rg203/work/boost_1_62_0
CAFFE_DEPENDENCES+=-lopenblas # BLAS library
CAFFE_DEPENDENCES+= -L/usr/local/cuda/lib64 -lcudart -lcublas -lcurand -lcudnn -L/home/rg203/work/boost_1_62_0/stage/lib # If Caffe was compiled with GPU, this line is necessary 

# MXNet DEPS
MXNET_INCLUDE= -I$(MXNET_ROOT)/include -I$(MXNET_ROOT)/dmlc-core/include -I$(MXNET_ROOT)/mshadow -I$(MXNET_ROOT)/src/c_api

FLAGS_INCLUDE = `pkg-config --cflags opencv` -I$(LIBCAFFE)/include -I/usr/local/cuda/include $(MXNET_INCLUDE) -I/home/rg203/work/boost_1_62_0
FLAGS_COMPILER =  -c -g -Wall -Wno-deprecated -Wno-reorder -Wno-unused-function -fmessage-length=0 -std=c++0x $(FLAGS_INCLUDE) -Wno-unknown-pragmas
FLAGS_LINKER =  -lm -lboost_serialization -lboost_filesystem -fopenmp $(CAFFE_DEPENDENCES) $(MXNET_ROOT)/lib/libmxnet.so `pkg-config --libs opencv` -L/home/rg203/work/boost_1_62_0/stage/lib -lboost_python

############################################

all: $(TARGET)
    @echo 'Compilation finished!'

$(TARGET) : $(OBJSCPP) 
    @echo 'Linking: $@'
    $(LINKER) $(OBJSCPP) $(FLAGS_LINKER) -o "$@"
    @echo 'End linking: $@'
    @echo ' '

$(OBJSCPP): ./objs/%.o : ./src/%.cpp
    @echo 'Compiling $< ...'
    $(CC) $(FLAGS_COMPILER) -o "./$@" "./$<"
    @echo 'End compilation: $<'
    @echo ' '

clean: 
    @echo 'Cleaning '
    rm -f *.o
    @echo 'Cleaning '
    rm -f $(TARGET)

Thanks for the help!

[pertusa]

Ok, it seems from your Makefile that boost was not installed using apt-get or other package managers, but directly downloaded to a folder boost_1_62_0 and compiled there. The most straightforward solution to fix this problem is to install all required libboost-dev using apt-get instead.

However, if you wish to keep boost in a folder, you can try to add also -lboost_system and the path to that folder adding -DBOOST_DIR="boost installation location" to the CAFFE_DEPENDENCES.

This error may also arise if there is already a Boost install in /usr/lib/ that will be incompatible with your self-installed Python (GalSim-developers/GalSim#270).

[RishabGargeya]

Hello,

I tried adding the -DBOOST_DIR flag, but I get the same error.
I also tried using a boost install from apt-get to see if that works instead. Unfortunately, I get the same error when using libboost-dev from apt-get.
I ran sudo apt-get install libboost-all-dev to install boost.
I then recompiled caffe to use that boost install instead of the boost version I downloaded to a folder.

Here is the error I get when running make to install this converter using apt-get boost:

Linking: mxnet_to_caffe
g++ objs/mxnet_to_caffe.o objs/mxnet_my_c_predict_api.o  -lm -lboost_serialization -lboost_filesystem -fopenmp -Wl,--whole-archive /home/rg203/work/caffe/build/lib/libcaffe.a -Wl,--no-whole-archive -lprotobuf -lglog -lgflags -llmdb -lleveldb /usr/lib/x86_64-linux-gnu/hdf5/serial/libhdf5.so /usr/lib/x86_64-linux-gnu/hdf5/serial/libhdf5_hl.so -lboost_system -lboost_thread -lboost_python  -lopenblas  -L/usr/local/cuda/lib64 -lcudart -lcublas -lcurand -lcudnn  /home/rg203/work/mxnet/lib/libmxnet.so `pkg-config --libs opencv`  -o "mxnet_to_caffe"
/home/rg203/work/caffe/build/lib/libcaffe.a(layer_factory.o): In function `boost::python::api::object::object()':
/usr/include/boost/python/object_core.hpp:504: undefined reference to `_Py_NoneStruct'
/home/rg203/work/caffe/build/lib/libcaffe.a(layer_factory.o): In function `boost::shared_ptr<caffe::Layer<float> > caffe::GetPythonLayer<float>(caffe::LayerParameter const&)':
/home/rg203/work/caffe/src/caffe/layer_factory.cpp:244: undefined reference to `Py_Initialize'
/home/rg203/work/caffe/src/caffe/layer_factory.cpp:250: undefined reference to `PyErr_Print'
/home/rg203/work/caffe/build/lib/libcaffe.a(layer_factory.o): In function `boost::shared_ptr<caffe::Layer<double> > caffe::GetPythonLayer<double>(caffe::LayerParameter const&)':
/home/rg203/work/caffe/src/caffe/layer_factory.cpp:244: undefined reference to `Py_Initialize'
/home/rg203/work/caffe/src/caffe/layer_factory.cpp:250: undefined reference to `PyErr_Print'
/home/rg203/work/caffe/build/lib/libcaffe.a(layer_factory.o): In function `boost::python::detail::returnable<boost::python::api::object>::type boost::python::call<boost::python::api::object, caffe::LayerParameter>(_object*, caffe::LayerParameter const&, boost::type<boost::python::api::object>*)':
/usr/include/boost/python/call.hpp:66: undefined reference to `PyEval_CallFunction'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyUnicodeUCS4_FromEncodedObject'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyNumber_InPlaceDivide'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyNumber_InPlaceRemainder'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PySlice_New'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyList_Sort'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PySequence_GetSlice'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyObject_SetAttrString'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyType_IsSubtype'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyList_Insert'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyExc_RuntimeError'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyComplex_Type'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyDict_Copy'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyDict_Size'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyString_Size'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyUnicode_Type'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyStaticMethod_New'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyList_Reverse'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyErr_NoMemory'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyString_FromStringAndSize'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyBaseObject_Type'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyList_Type'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyModule_Type'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyNumber_InPlaceLshift'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyDict_Keys'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyString_InternFromString'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyNumber_Subtract'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyObject_DelItem'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyNumber_InPlaceMultiply'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `_PyType_Lookup'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyErr_Clear'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyArg_ParseTupleAndKeywords'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyCallable_Check'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyNumber_Xor'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyLong_AsUnsignedLongLong'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyInt_AsLong'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyErr_ExceptionMatches'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyMethod_New'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyUnicodeUCS4_AsWideChar'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyNumber_Or'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyNumber_InPlaceOr'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyExc_TypeError'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyComplex_RealAsDouble'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyErr_SetObject'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyLong_AsUnsignedLong'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PySequence_DelSlice'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyType_Ready'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyObject_IsTrue'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyNumber_Add'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyTuple_GetItem'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyDict_Clear'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyObject_Size'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyObject_RichCompare'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyLong_AsLongLong'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyBool_Type'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyNumber_Multiply'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyErr_WarnEx'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyString_AsString'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyObject_GetAttr'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyTuple_Type'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyCFunction_Type'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyDict_GetItem'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyMethod_Type'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyTuple_New'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyNumber_InPlaceRshift'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyString_FromFormat'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyExc_ImportError'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyExc_AttributeError'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyErr_Occurred'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyWeakref_NewRef'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyNumber_Remainder'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyComplex_ImagAsDouble'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyExc_ValueError'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyNumber_And'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PySequence_SetSlice'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyImport_ImportModule'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyExc_OverflowError'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyClass_Type'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyLong_Type'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyString_FromString'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyDict_Type'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyRun_FileExFlags'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyFile_AsFile'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyObject_CallFunction'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyErr_SetString'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyObject_IsInstance'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `Py_InitModule4_64'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyList_Append'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyMem_Free'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyType_Type'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyProperty_Type'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyDict_Values'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyObject_ClearWeakRefs'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyInt_Type'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `_PyObject_New'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyInt_FromLong'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyDict_New'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyRun_StringFlags'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyNumber_InPlaceAdd'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyImport_Import'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyFile_FromString'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyErr_NewException'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `_Py_NotImplementedStruct'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyObject_GetItem'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyEval_GetGlobals'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyExc_ReferenceError'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyObject_SetItem'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyDict_Items'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `_PyEval_SliceIndex'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyDict_GetItemString'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyNumber_Lshift'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyBool_FromLong'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyNumber_Divide'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyFloat_Type'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyExc_IndexError'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyNumber_Rshift'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyNumber_InPlaceSubtract'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyIter_Next'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyString_Type'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyExc_StopIteration'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyType_GenericAlloc'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyDict_Update'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyObject_CallMethod'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyNumber_InPlaceAnd'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyObject_GetAttrString'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyMem_Malloc'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyList_New'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyErr_Format'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyObject_SetAttr'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyNumber_InPlaceXor'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyCFunction_NewEx'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyLong_FromUnsignedLong'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyStaticMethod_Type'
/usr/lib/x86_64-linux-gnu/libboost_python.so: undefined reference to `PyTuple_Size'
collect2: error: ld returned 1 exit status
Makefile:30: recipe for target 'mxnet_to_caffe' failed
make: *** [mxnet_to_caffe] Error 1

As well, here is my Makefile:

TARGET=./mxnet_to_caffe

include config.mk

OBJSCPP = \
objs/mxnet_to_caffe.o \
objs/mxnet_my_c_predict_api.o 

CC = g++
LINKER = g++

# CAFFE DEPS
CAFFE_DEPENDENCES= -Wl,--whole-archive $(LIBCAFFE)/build/lib/libcaffe.a -Wl,--no-whole-archive -lprotobuf -lglog -lgflags -llmdb -lleveldb /usr/lib/x86_64-linux-gnu/hdf5/serial/libhdf5.so /usr/lib/x86_64-linux-gnu/hdf5/serial/libhdf5_hl.so -lboost_system -lboost_thread -lboost_python 
CAFFE_DEPENDENCES+=-lopenblas # BLAS library
CAFFE_DEPENDENCES+= -L/usr/local/cuda/lib64 -lcudart -lcublas -lcurand -lcudnn # If Caffe was compiled with GPU, this line is necessary 

# MXNet DEPS
MXNET_INCLUDE= -I$(MXNET_ROOT)/include -I$(MXNET_ROOT)/dmlc-core/include -I$(MXNET_ROOT)/mshadow -I$(MXNET_ROOT)/src/c_api

FLAGS_INCLUDE = `pkg-config --cflags opencv` -I$(LIBCAFFE)/include -I/usr/local/cuda/include $(MXNET_INCLUDE) 
FLAGS_COMPILER =  -c -g -Wall -Wno-deprecated -Wno-reorder -Wno-unused-function -fmessage-length=0 -std=c++0x $(FLAGS_INCLUDE) -Wno-unknown-pragmas
FLAGS_LINKER =  -lm -lboost_serialization -lboost_filesystem -fopenmp $(CAFFE_DEPENDENCES) $(MXNET_ROOT)/lib/libmxnet.so `pkg-config --libs opencv` 

############################################

all: $(TARGET)
    @echo 'Compilation finished!'

$(TARGET) : $(OBJSCPP) 
    @echo 'Linking: $@'
    $(LINKER) $(OBJSCPP) $(FLAGS_LINKER) -o "$@"
    @echo 'End linking: $@'
    @echo ' '

$(OBJSCPP): ./objs/%.o : ./src/%.cpp
    @echo 'Compiling $< ...'
    $(CC) $(FLAGS_COMPILER) -o "./$@" "./$<"
    @echo 'End compilation: $<'
    @echo ' '

clean: 
    @echo 'Cleaning '
    rm -f *.o
    @echo 'Cleaning '
    rm -f $(TARGET)

Any ideas? Not sure why I'm still getting this undefined reference error. Thanks for the help!

[pertusa]

The Caffe Makefile has the following definition:

PYTHON_LIBRARIES ?= boost_python python2.7

So I would try to add -lpython2.7 (or the version you have) to the CAFFE_DEPENDENCES. If you can't find it, check this link: http://stackoverflow.com/questions/8400272/usr-bin-ld-cannot-find-lpython2-7. The linking order matters, so it should be included after boost_python.

[lzx1413]

@pertusa that works!