Error while running setup.py for pointnet2_cuda

[rho25]

Hi,
when I run the file setup.py for pointnet2_cuda, I am getting the following error:

error: wrong number of template arguments (5, should be 2)
return _and<_not<is_same<tuple<_Elements...>,
^
/usr/include/c++/6/type_traits:1558:8: note: provided for ‘template<class _From, class _To> struct std::is_convertible’
struct is_convertible
^~~~~~~~~~~~~~
/usr/include/c++/6/tuple:502:1: error: body of constexpr function ‘static constexpr bool std::_TC<, _Elements>::_NonNestedTuple() [with _SrcTuple = std::tuple<const c10::optional&, const c10::VaryingShape&, const c10::VaryingShape&, const c10::optional&>&&; bool = true; _Elements = {const c10::optional&, const c10::VaryingShape&, const c10::VaryingShape&, const c10::optional&}]’ not a return-statement
}
^
error: command '/usr/bin/nvcc' failed with exit status 1