c++ - error: no class template named 'rebind' in 'class std::basic_string<char>' -

i getting error when define function.i'm not using template class yet getting error.

#include <string> #include <vector> using namespace std;  void myclass::setoptions(vector<std::string,std::string> opts) { //    int size = opts.size(); //    this->dropdown = new string[size][size]; } 

and there no error in header file if declare function:

void setoptions(vector<string,string> ); 

std::vector<std::string, std::string> should be:

• std::vector<std::string> (one dimension)
• or std::vector<std::vector<std::string>> (two dimension).

the second template argument of std::vector allocator use, , std::string not allocator.