I have put about a year of work into some Knime workflows – but a vital node has stopped working. Of course, this comes at the worst possible time.
I’m using the “KNIME Spatial Processing Nodes” extension. After doing an update to Knime 4.4.1, the “Shapefile reader” node no longer works – it says ‘Execute failed: (“NullPointerException”): null’ when given (previously-working) shapefiles to read.
I have tried both downgrading to 4.4.0 and reinstalling 4.4.1 – but I get the same result. There was an earlier Knime nightly-build fix for this issue in 2016 (see link below).
Can anyone please help?
The “KNIME Spatial Processing Nodes” extension is detailed here: https://hub.knime.com/samthiriot/extensions/ch.res_ear.samthiriot.knime.shapefilesaswkt.feature/latest
Earlier Knime Nightly Build fix (2016) - https://forum.knime.com/t/shape-file-polygon-reader-nodes-gives-nullpointerexception/4255