Hi Djordje,
I got recently an error with the Terrain Generator (v 0.0.2) component (probably because installing the last version of Gismo). The error was related to the wrong class assigned line 793 and line 1128.
The class was assigned to "gismo_osm", I just replaced it by "gismo_gis" which is the place where the "projectedLocationCoordinates" definiton is and this fixed the error.
Cheers