I am using QGIS version 3.14.0. I have about 20 polygon
.shp-files with overlaps between files. All are in the same projection. I've been using the difference tool to remove the overlaps and then merge the files to create one shapefile. This process works well for about 6 files, then I get an error that says:
GEOS geoprocessing error: difference failed
I've tried to restart the process at the dataset that causes the error, and am able to continue for a few years until the error comes up again. Online research suggests two things:
- Geometry or topology is causing the error.
- The difference tool may be maxing out computer memory causing a failure.
Has anyone else worked through this error before and has a fix?