I am working in QGIS and have been wanting to do a simple Least Cost Path Analysis using the SAGA tool. I have created a Slope raster for it, as well as an Accumulated Cost Surface. I have two points which I have imported from Google Earth and transformed into two separate point layers. I have tried numerous times to run the plug in, but I keep getting the same error:

ERROR: The start-point layer contains no legal point.

I tried to re import the points, change the CRS, researching on the internet and watching tutorials, but nothing seem to work or to give a reason for this issue. Is there a way to fix this?


1 Answer 1


I had the same problem and I realized that the reason was the points were PointZ. Just transform them into simple point and it will work.

  • 2
    Welcome to GIS.se! Please click 'edit' and add detail to your answer - which tools should be used to convert PointZ to Point?
    – Simbamangu
    Commented Sep 22, 2020 at 15:08
  • thanks for the very good tipp, I have just saved the point again, and when saving just take out the mark on save z value, and thats all
    – Vlad
    Commented Jan 16, 2023 at 3:50

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