[BioC] Error in AnnBuilder writeAnnData2Pkg

[Georg Otto]

Dear Bioconductors,

I am trying to reproduce the AnnBuilder vignette with my own data from 
a zebrafish chip. When I try to generate an R data package containing 
the annotation data

 > pkgName<-"test"
 > pkgPath<-getwd()
 > createEmptyDPkg(pkgName, pkgPath, force=TRUE)
 > annotation<-as.matrix(annotation)

then I get the following error:

 > writeAnnData2Pkg(annotation, pkgName, pkgPath)

Error in assign(x[i], value[[i2]], envir = envir, inherits = inherits) :
         attempt to use zero-length variable name


Could someone give me a hint what is wrong here?

Best,

Georg

P.S. I am on digest mode, cc'ing the answer directly to me would be nice


-- 
Georg Wilhelm Otto
Max-Planck-Institute for Developmental Biology
Spemannstrasse 35/III
D-72076 Tuebingen Germany
phone: +49-7071-601 401
http://www.eb.tuebingen.mpg.de