[ndnSIM] Ndnsim visualizer problem

[sofia sophie]

Hi there,
I installed ndnsim 2.7 on ubuntu 16.04. I have problem on running the
python visualizer on the ndnsim. When i run the program with vis command
(./war --run-simple --vis) I have this error message is:
No visualisation support (cannot import name core).
Traceback(most recent call last):
File"<string>, line2, in <module>
File"</usr/local/lib/python2.7/dist-packages/visualizer/core.py>", line
1875, in start
Import sys
RuntimeError: maximum recursion depth exceeded while calling a python object
I would be grateful for any help.
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