I am trying to run the saga fill sinks (wang &liu) but it always results in following error "'NoneType' object has no attribute 'crs' See log for more details". I am using QGIS 2.18.12. I am running this algorithm inside QGIS.
I do not know what i am doing wrong
Raster CRS is "+proj=utm +zone=43 +datum=WGS84 +units=m +no_defs". I have projected it before running the fill sink(wang & liu).