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When I try to start this algorithm I get an error:

Traceback (most recent call last): File "C:/Users/trdina/.qgis//python/plugins\sextante\core\GeoAlgorithm.py", line 145, in execute self.processAlgorithm(progress) File "C:/Users/trdina/.qgis//python/plugins\sextante\algs\ftools\SumLines.py", line 85, in processAlgorithm spatialIndex = utils.createSpatialIndex(lineLayer) File "C:/Users/trdina/.qgis//python/plugins\sextante\algs\ftools\FToolsUtils.py", line 32, in createSpatialIndex provider = layer.provider() AttributeError: 'QgsVectorLayer' object has no attribute 'provider'

I have no clue woh to solve this error. Any help is welcome. Best regards

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  • Should work in 1.8. Are you working with the current development version?
    – underdark
    Commented Feb 12, 2013 at 10:57

1 Answer 1

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Sounds like a bug coming from the recent QGIS Api changes. Consider posting a detailed bug-report here.
In the meantime try to use alternative tools like the Lines Properties function in SAGA (also accessible through sextante).

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  • Thanks for your answer. I need sum of lines length in overlay polygon layer. So I think that SAGA - line properties doesn't solve the problem.
    – Andrej
    Commented Feb 12, 2013 at 9:09
  • mmh and if you make a new attribute column called length and insert " $length " this will give you the length of all your lines. Now you simply have to sum them up. Alternatively join them first
    – Curlew
    Commented Feb 12, 2013 at 9:40

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