View Compilation Error

0_0_15897908_19253.cpp: In function 'void dfs(std::vector<std::vector<char> >&, std::vector<std::vector<bool> >&, int)':
0_0_15897908_19253.cpp:106:27: error: invalid initialization of non-const reference of type 'pos&' from an rvalue of type 'pos'
    if (check(map, pos{i,j}))
                           ^
0_0_15897908_19253.cpp:31:6: note: in passing argument 2 of 'bool check(std::vector<std::vector<char> >&, pos&)'
 bool check(vector<vector<char> > & map, pos & p)
      ^