drogba@panther:~/Escritorio$ gradel
Getting GradeL settings...(new)
Recent File = /home/drogba/Escritorio/multimedia.gdl,Multimedia

Staring with Multimedia
There was a problem opening the file.
Error Info:
  Code = 6
  Where = CClass.?.0
  Text = Type mismatch: wanted Float, got String instead
  Backtrace:
CClass.?.0: #13: Null object