刚刚在回一个帖子的时候出现一个这样的错误！

[Sunya]

Traceback (most recent call last):
File "/base/python_runtime/python_lib/versions/1/google/appengine/ext/webapp/__init__.py", line 517, in __call__
handler.post(*groups)
File "/base/data/home/apps/v2ex/1.348720797793211297/topic.py", line 705, in post
keys.append(str(topic.member.key()))
AttributeError: 'NoneType' object has no attribute 'key'

[Livid]

是哪个帖子？

[Sunya]

忘记了, orz, 下次我记得抓图