IO error opening converted kicad_pcb about altium2kicad

[thesourcerer8]

Ok, I have an easy workaround for you:
Change $annotate=1 to $annotate=0 on line 39 in convertpcb.pl, this disables including the debugging information in the generated file, and solves this scalability problem of KiCad. Please also report it to KiCad, I think they should also fix such scalability issues.
I am not sure, whether the converted file is right, I see some texts that look mostly good (some strange overlapping that does not look good), and I only see a very tiny PCB which also looks somehow broken. Please let me know if there are further issues I should take a look at, and perhaps provide some Screenshots, PDF or Gerber Files that I can check against.

[cscheidl]

Thanks for the hint. After defining the layers at the top of the kicad_pcb with the text editor, the tiny pcb appeared in Kicad. I wanted to start with something very tiny...
For the moment, I don't need further assistance.