create the .xcl file problem

first, i get the flower file by using blend exporter. but when i use the flour.exe to convert the flower file to
.xcl file. the flour.exe crash. use: flour --cloth xxx.flower

and also i use the generateFlatCloth in nxogre to generate cloth mesh. but it always fails.

i don~t know why?
and did the flour0.4 can generate the .xcl file directly?

with this
flour --cloth **.flower
some .flower file can be convert to .nxs file

but when i use the .nxs file to create cloth, it crashs at

mCloth = mScene->getScene()->createCloth(desc); // in nxogrecloth.cpp

i think there must be some wrong data in .nxs file, but i can`t find the reason.

I'll have a look to see if there is a problem with Flour/NxOgre cooking cloths.

OK, and expect the nxogre1.5.5 stable and flour 0.4