Error in Esri rule files?

[awei]

Seems there're errors in City Engine Essential Skills Training project/Essential_street.cga. Specifically, these few lines:

PlantingLayout -->
  case lenAlongV > 2 && lenAlongU > 8  && heightOverTerrain < 2:
  split(u,unitSpace,0)
  {
  Crosswalk_width * 2: Pavement | 
  split(v,unitSpace,0)
  {
  Planting_Width : split(u,unitSpace,0)
  { 
  Planting_Length  : PlantingOrPavement | { Planting_Spacing:  Pavement | Planting_Length : PlantingOrPavement }* | ~1 : Pavement
  } 
  | ~1 : Pavement
  }
  | Crosswalk_width * 2: Pavement
  }
  else :  Pavement

Am I mistaken? If there're errors, how do I fix that?

Thank you!

[DavidWasserman]

It seems the sidewalk and planting textures are clashing though.

[MicahTaylor]

Yes, and there is an unused median rule in the file as well.  I think this may be an out-of-date/ flawed version.