ｓｄｆの<model>タグの内側で<include>タグを使うとエラーになる

[fkanehiro]

以下のようなエラーが発生する。

Traceback (most recent call last):
  File "/usr/local/bin/simtrans", line 9, in <module>
    load_entry_point('simtrans==e0c4273', 'console_scripts', 'simtrans')()
  File "/usr/local/lib/python2.7/dist-packages/simtrans-e0c4273-py2.7.egg/simtrans/cli.py", line 108, in main
    model = reader.read(options.fromfile, assethandler=handler)
  File "/usr/local/lib/python2.7/dist-packages/simtrans-e0c4273-py2.7.egg/simtrans/sdf.py", line 76, in read
    name = i.find('name').text
AttributeError: 'NoneType' object has no attribute 'text'