No operator available that can perform this conversion

[evtodorov]

When trying to compile on Windows with MSVC I get the following error:

megaman\geometry\cyflann\index.cxx(2973): error C2664: 
'int CyflannIndex::knnSearch(const std::vector<float,std::allocator<float>> &,std::vector<std::vector<int,std::allocator<int>>,std::allocator<std::vector<int,std::allocator<int>>>>,std::vector<std::vector<float,std::allocator<float>>,std::allocator<std::vector<float,std::allocator<float>>>>,int,int,int)':
cannot convert argument 2 from
std::vector<std::vector<__pyx_t_7megaman_8geometry_7cyflann_5index_dtypei_t,std::allocator<__pyx_t_7megaman_8geometry_7cyflann_5index_dtypei_t>>,std::allocator<std::vector<__pyx_t_7megaman_8geometry_7cyflann_5index_dtypei_t,std::allocator<__pyx_t_7megaman_8geometry_7cyflann_5index_dtypei_t>>>>' 
to 'std::vector<std::vector<int,std::allocator<int>>,std::allocator<std::vector<int,std::allocator<int>>>>'
megaman\geometry\cyflann\index.cxx(2973): note: No user-defined-conversion operator available that can perform this conversion, or the operator cannot be called
\path-to-megaman\megaman-master\megaman\geometry\cyflann\cyflann_index.h(32): note: see declaration of 'CyflannIndex::knnSearch'

Looks like a type-conversion issue with Cython, not sure whether it's just my box?