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I have just installed LAStools in my QGIS 3.x version. I have already managed to visualize the point cloud through the lasview tool. Now, I am having problems trying to classify Ground points from the point cloud to extract DEM information.

Can you please help me fix this error (cannot alloc point_buffer) as shown is the image below:

cannot alloc point_buffer


Can you please have a look at the parameters I have as input![enter image description here]1

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  • I believe what matters is there already cannot alloc point_buffer….
    – user30184
    Feb 20 '20 at 9:34
  • Remove white spaces from the input file path. Feb 20 '20 at 13:44
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    – PolyGeo
    Feb 21 '20 at 11:16

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