I hope somebody can help me.

At first I have merge some vectorlayers (lineshape) without problems. Then I've create a bounding box with "polygon from layer extend" (polygon-shape) without problems too.

And then when I tried to "extract by location", I always get the following error (screenshot).

At first i've thought the reason would be the large nummer of datasets (>3 million), but i get the same error with fewer datasets. Now i THink the problem is because of the merging tool, perhaps. But I can't imagine.enter image description here

I've attached a screenshot from the error text. Perhaps you can understand it better than me enter image description here

  • Make sure that both layers that you are using with extract by location have the same projection. – ahmadhanb Jul 19 '17 at 8:43
  • Yes, they have the same projection – user100002 Jul 19 '17 at 8:47
  • Try to load both layers into a new QGIS project file and do extract by location, and check if the error occurs. – ahmadhanb Jul 19 '17 at 8:51
  • This step I've also done.....same problem. Now i will try to use another version. But I don't think that it will be function – user100002 Jul 19 '17 at 9:01
  • So it doesn't function too. Now i have no idea more – user100002 Jul 19 '17 at 10:04

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