View Compilation Error

0_0_38324785_10506.cpp: In instantiation of 'Cap atcoder::mf_graph<Cap>::flow(int, int, Cap) [with Cap = int]':
0_0_38324785_10506.cpp:85:58:   required from 'Cap atcoder::mf_graph<Cap>::flow(int, int) [with Cap = int]'
0_0_38324785_10506.cpp:191:26:   required from here
0_0_38324785_10506.cpp:135:54: error: invalid use of 'auto'
                 Cap f = dfs(dfs, t, flow_limit - flow);
                                                      ^