Terrain Tool v1.1 Failed to execute (SwissHillshade)

[andreamilan]

Hello, can you help me? I’m using terrain tool v1.1,If I run terrain mapping-> Swiss Hillshade I always get this error:
(I use Arcmap 10.4.1)
Executing: SwissHillshade cervinia.asc C:\Users\utente1\Documents\ArcGIS\swiss Swiss123 1
Start Time: Sat Apr 29 19:19:58 2017
Running script SwissHillshade…
Failed script SwissHillshade…
Traceback (most recent call last):
File “C:\Users\utente1\Documents\ArcGIS\TerrainTools_v1_1\Scripts\SwissHillshade.py”, line 107, in
swissHillshade(*args)
File “C:\Users\utente1\Documents\ArcGIS\TerrainTools_v1_1\Scripts\SwissHillshade.py”, line 89, in swissHillshade
outHillshade.save(outS)
RuntimeError: ERROR 010240: Could not save raster dataset to C:\Users\utente1\Documents\ArcGIS\swiss\Swiss123_filter with output format GRID.

Failed to execute (SwissHillshade).
Failed at Sat Apr 29 19:20:31 2017 (Elapsed Time: 32,84 seconds)

[DanPatterson_Retired]

try saving to a simpler folder (c:\stuff), make sure the file name is < 10 characters long, or save it as a *.tif by specifying the file extension