View Compilation Error

0_0_37922703_24898.cpp: In instantiation of 'Cap atcoder::mf_graph<Cap>::flow(int, int, Cap) [with Cap = long long int]':
0_0_37922703_24898.cpp:85:58:   required from 'Cap atcoder::mf_graph<Cap>::flow(int, int) [with Cap = long long int]'
0_0_37922703_24898.cpp:205:25:   required from here
0_0_37922703_24898.cpp:135:50: error: invalid use of 'auto'
             Cap f = dfs(dfs, t, flow_limit - flow);
                                                  ^