[BioC] affxparser: writeTpmap error (in as.vector(y))

[Andreas Heinzel]

hi,

i'm trying to use readBpmap to read an affymetrix bpmap file and writeTpmap to save it as text-bpmap file.

reading seems to work fine, but the writeTpmap function dies with the following error: 
Writing sequence AffxCtrl:v1;r2_Tag 
Fehler in as.vector(y) : Argument "y" fehlt (ohne Standardwert)

i'm using:
R 2.7 on Mac
affxparser 1.12.2

tried:
GeneChip Drosophila Tiling 1.0R Array
Dm35b_MF_v02-3_BDGPv4h.bpmap (http://www.affymetrix.com/Auth/support/downloads/library_files/drosophila_tiling1r_libraryfile.zip)
GeneChip Chromosome 21/22 1.0 Array Set
Chrom21_22B_F_v04-2_NCBIv30.bpmap
(http://www.affymetrix.com/Auth/support/downloads/library_files/chrom21_22_libraryfile.zip)

Best regards
Andreas