print (sol) of nsga2 is error

[Zcaic]

I run the examples/nsga2_multi_objectiva.py, it raise when run print(sol).

I found it caused by

line98 ...  inform_val = self.optInform["value"]
line99 ...  inform_text = self.optInform["text"]

in pyOpt_solution.py.

Becasue in pyNSGA2.py:

line183... sol_inform = {}

The sol_inform doesn't have key value and text.
I temporarily solved it by replacing sol_inform = {} with sol_inform = {"value":"","text":""}.