create_dem_products error

[dfilatow]

the create_dem_products seems to be working up to the point it tries to create TPI. Then I get this warning and the process gets hung. when I stop it says a child process is not responding.
Warning messages:
1: In .local(x, filename, ...) : all cell values are NA
2: In system(command, intern = intern, show.output.on.console = show.output.on.console, :
running command '"C:/OSGeo4W64/apps/saga-ltr/saga_cmd.exe" -f=q ta_morphometry 18 -DEM "C:/Users/dfilatow/Documents/R/test/ELEV.sgrd" -TPI "C:/Users/dfilatow/Documents/R/test/TPI.sgrd"' had status 99