Writing to file problem (Kernelbase exeption)

[Konrad via Digitalmars-d-learn]

Hi guys!
I have problem with writing to a file.
My function looks like this:
[code]
int game_change_config(string _player_spritesheet, string 
_flame_spritesheet) {
   string info = _player_spritesheet~"\n"~_flame_spritesheet;
   auto config_file = File("Data/config.ini");
   config_file.write(info);     
   return 0;
}[/code]
Everythings compile just fine, but sadly I'm getting 
Kernelbase.dll exception while function is running.
Could you help me that problem? :)

Best regards,
Ironus

PS. I'm sorry for my poor english.