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["m.asd" <question215627@xxxxxxxxxxxxxxxxxxxxx>]

Question #215627 on Yade changed:
https://answers.launchpad.net/yade/+question/215627

m.asd posted a new comment:
hi,
thank you Jan and Anton for your replies
when I change  ids=plate to ids=[plate.id]  it leads in the following error

62         global plate
     63         plate=O.bodies[-1]
---> 64         O.engines=O.engines[:4]+[TranslationEngine(ids=[plate.id],translationAxis=(0,0,1),velocity=0.002,label="transEngine")]+O.engines[4:]
     65         checker.command='shearing()'
     66         O.materials[0].frictionAngle=.5

AttributeError: 'NoneType' object has no attribute 'id'

It seems that I am facing  the bug LP:1056684 because before adding the plate, I delete some bodies ,  I am using Ubuntu 12.04
how can I fix it?

cheers,
mozhgan

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