Re: ambiguous call to overloaded function

Heres the error message.
c:\cpw\msvc\cs512\c++\cppdef/median.cpp(199) : error C2668:
'select_sort' : ambiguous call to overloaded function
       c:\cpw\msvc\cs512\c++\cppdef/median.cpp(118): could be 'void
select_sort<std::string,std::vector>(std::vector<_Ty,_Ax>
&,std::_Vector_iterator<_Ty,_Alloc>,const int &,const int &)'
       with
       [
           _Ty=std::string,
           _Ax=std::allocator<std::string>,
           _Alloc=std::allocator<std::string>
       ]
       c:\cpw\msvc\cs512\c++\cppdef\../median.hpp(49): or 'void
select_sort<std::string,std::vector>(std::vector<_Ty,_Ax>
&,std::_Vector_iterator<_Ty,_Alloc>,const int &,const int &)'
       with
       [
           _Ty=std::string,
           _Ax=std::allocator<std::string>,
           _Alloc=std::allocator<std::string>
       ]
       while trying to match the argument list
'(std::vector<_Ty,_Ax>, iter, const int, int)'
       with
       [
           _Ty=std::string,
           _Ax=std::allocator<std::string>
       ]

Heres line 114-119 of median.cpp
template <typename T,
        template <typename ELEM, typename = std::allocator<ELEM> >
        class CONT

void select_sort(CONT<T>& array, typename CONT<T>::iterator Left,
                   const int& Size, const int& Step)

Heres line 45-49 of median.hpp
template <typename T,
        template <typename ELEM, typename = std::allocator<ELEM> >
        class CONT

extern void select_sort(CONT<T>&, typename CONT<T>::iterator, const
int&, const int&);

What is wrong?