error msg

[ 81%] Built target shogun-static
Scanning dependencies of target variational_approx_example
[ 81%] Building CXX object examples/undocumented/libshogun/CMakeFiles/variational_approx_example.dir/variational_approx_example.cpp.o
In file included from /Users/zora/Github/shogun/examples/undocumented/libshogun/variational_approx_example.cpp:42:
In file included from /Users/zora/Github/shogun/src/shogun/machine/gp/LogitVGPiecewiseBoundLikelihood.h:43:
In file included from /Users/zora/Github/shogun/src/shogun/machine/gp/LogitLikelihood.h:38:
In file included from /Users/zora/Github/shogun/src/shogun/machine/gp/LikelihoodModel.h:40:
In file included from /Users/zora/Github/shogun/src/shogun/labels/Labels.h:22:
In file included from /Users/zora/Github/shogun/src/shogun/features/SubsetStack.h:16:
In file included from /Users/zora/Github/shogun/src/shogun/mathematics/Math.h:30:
/Users/zora/Github/shogun/src/shogun/lib/SGVector.h:490:4: error: called object type 'shogun::CCSVFile *' is not a
      function or function pointer
                        ar(vlen);
                        ^~
/Users/zora/Github/shogun/examples/undocumented/libshogun/variational_approx_example.cpp:71:16: note: in
      instantiation of function template specialization 'shogun::SGVector<double>::load<shogun::CCSVFile *>'
      requested here
        m_from_matlab.load(m_file);
                      ^
In file included from /Users/zora/Github/shogun/examples/undocumented/libshogun/variational_approx_example.cpp:42:
In file included from /Users/zora/Github/shogun/src/shogun/machine/gp/LogitVGPiecewiseBoundLikelihood.h:43:
In file included from /Users/zora/Github/shogun/src/shogun/machine/gp/LogitLikelihood.h:38:
In file included from /Users/zora/Github/shogun/src/shogun/machine/gp/LikelihoodModel.h:40:
In file included from /Users/zora/Github/shogun/src/shogun/labels/Labels.h:22:
In file included from /Users/zora/Github/shogun/src/shogun/features/SubsetStack.h:16:
In file included from /Users/zora/Github/shogun/src/shogun/mathematics/Math.h:30:
/Users/zora/Github/shogun/src/shogun/lib/SGVector.h:493:5: error: called object type 'shogun::CCSVFile *' is not a
      function or function pointer
                                ar(vector[i]);
                                ^~
2 errors generated.
make[2]: *** [examples/undocumented/libshogun/CMakeFiles/variational_approx_example.dir/variational_approx_example.cpp.o] Error 1
make[1]: *** [examples/undocumented/libshogun/CMakeFiles/variational_approx_example.dir/all] Error 2
make: *** [all] Error 2

SGVector.h

template<class Archive>
void save(Archive & ar) const
{
	ar(vlen);
	for (index_t i = 0; i < vlen; ++i)
	ar(vector[i]);
}

template<class Archive>
void load(Archive & ar)
{
	unref();
	ar(vlen);
	vector = SG_MALLOC(T, vlen);
	for (index_t i = 0; i < vlen; ++i)
		ar(vector[i]);
}