error C2664: 'std::_Tree<_Traits>::iterator std::_Tree<_Traits>::insert(std::_Tree<_Traits>::i terator,const std:
air<_Ty1,_Ty2> &)' : cannot convert parameter 1 from 'std::string' to 'std::_Tree<_Traits>::iterator'
1> with
1> [
1> _Traits=std::_Tmap_traits<std::string,user_input:: command_handler,std::less<std::string>,std::alloca tor<std:
air<const std::string,user_input::command_handler>>,false>,
1> _Ty1=const std::string,
1> _Ty2=user_input::command_handler
1> ]
1> and
1> [
1> _Traits=std::_Tmap_traits<std::string,user_input:: command_handler,std::less<std::string>,std::alloca tor<std:
air<const std::string,user_input::command_handler>>,false>
1> ]
1> No user-defined-conversion operator available that can perform this conversion, or the operator cannot be called