[Ronja] Problem with opening a gerber file *grb by a berbv program :(

[Pawel Plociennik]

Hi,

I have trying in a gerbv program to open a gerber file (for example a twister2.pcb.output_back.gbr from a twister2 packet) it is failed by this below error :
"Error: eval: unbound variable: g04"

I have trying resolve this problem but I have not resolved it and I do not know what this means ;(
Can somebody tell me how resolve this problem ?

thanks,
Pawel Plociennik