I'm trying to parse this: ftp://ftp.ncbi.nlm.nih.gov/genbank/genomes/C_elegans/CHR_I/worm_I.gbs But I get this: Can't call method "_generic_seqfeature" on an undefined value at /users/cjm/cvs/bioperl-live/Bio/SeqIO/genbank.pm line 277 is it pushing the genbank parser too far to get contig coordinates?