IndexError: list index out of range

[hutaondsc]

File "/home/xxxx/ryu/ryu/app/ryu_multipath.py", line 229, in install_paths
return paths_with_ports[0][src][1]
When I want to run this experiment, the CMD reports this error. Then, we discover the controller cannot get the global view of the network by self.adjacency[node], defaultdict.

Can you tell me how to solve this problem? Whether the other files are changed？

Thank you!

[zsaintus]

Did you solve it? Got the same issue too.

[ghost]

Please run ryu-manager with option --observe-links like this:

ryu-manager --observe-links ryu_multipath.py