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I am trying to convert a line shapefile into a polygon shapefile using Polygonizer plugin, and when my new polygons are created all the cells in my id field are "Null", although I have clicked "copy table field from line layer". I have tried both Polygonizer 2 and Polygonizer 2.1. Any idea why the ids from my line layer are not copied to my polygonized shapefile? Thank you!

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Is this the Polygonizer plugin you are using? – PolyGeo Dec 9 '12 at 21:53
Yes! Polygonizer plugin. I 've tried it with both versions 2 and 2.1 and still didn't work. – marika Dec 9 '12 at 22:40

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