View Compilation Error

0_0_34658507_5416.cpp: In instantiation of 'Cap mf_graph<Cap>::flow(int, int, Cap) [with Cap = int]':
0_0_34658507_5416.cpp:72:58:   required from 'Cap mf_graph<Cap>::flow(int, int) [with Cap = int]'
0_0_34658507_5416.cpp:202:24:   required from here
0_0_34658507_5416.cpp:122:54: error: invalid use of 'auto'
                 Cap f = dfs(dfs, t, flow_limit - flow);
                                                      ^