View Compilation Error

0_0_37617411_13719.cpp: In instantiation of 'Cap atcoder::mf_graph<Cap>::flow(int, int, Cap) [with Cap = int]':
0_0_37617411_13719.cpp:85:58:   required from 'Cap atcoder::mf_graph<Cap>::flow(int, int) [with Cap = int]'
0_0_37617411_13719.cpp:196:17:   required from here
0_0_37617411_13719.cpp:135:50: error: invalid use of 'auto'
             Cap f = dfs(dfs, t, flow_limit - flow);
                                                  ^