There is an error. The error is cannot import name 'FunctionSet'. How can I solve thie problem

[miraclewxl]

There is an error. The error is cannot import name 'FunctionSet'. How can I solve thie problem
Traceback (most recent call last):
File "/media/wxl/00063DAF000FECC3/chainer-example-overfeat-classify-master/classify.py", line 5, in
from chainer import cuda, Variable, FunctionSet, optimizers
ImportError: cannot import name 'FunctionSet'

[miraclewxl]

Thanks to these answers

[darashi]

The code was written for quite old Chainer. It may work with old Chainer (about 3yrs ago).