Hi I am trying to use matchPDict() and below's the error I get. This happens with my objects as well, but I am showing the vignette example. thanks in advance -burak # I've made sure that ce2dict0 was corectly created > ce2dict0cw15 <- DNAStringSet(ce2dict0, end=15) > runAnalysis2(ce2dict0cw15, outfile="ce2dict0cw15_ana2.txt") Target: strand + of ce2 chromosomes chrI, chrII, chrIII, chrIV, chrV, chrX, chrM >>> Finding all hits in strand + of chromosome chrI ... Error in initialize(value, ...) : invalid names for slots of class "ByName_MIndex": length > sessionInfo() R version 2.8.1 (2008-12-22) x86_64-unknown-linux-gnu locale: LC_CTYPE=en_US.UTF-8;LC_NUMERIC=C;LC_TIME=en_US.UTF-8;LC_COLLATE=en_US .UTF-8;LC_MONETARY=C;LC_MESSAGES=en_US.UTF-8;LC_PAPER=en_US.UTF-8;LC_N AME=C;LC_ADDRESS=C;LC_TELEPHONE=C;LC_MEASUREMENT=en_US.UTF-8;LC_IDENTI FICATION=C attached base packages: [1] grDevices datasets splines graphics stats utils tools [8] methods base other attached packages: [1] BSgenome.Celegans.UCSC.ce2_1.3.11 BSgenome_1.10.3 [3] Biostrings_2.10.16 IRanges_1.0.12 [5] simpleaffy_2.18.0 gcrma_2.14.1 [7] matchprobes_1.14.1 genefilter_1.22.0 [9] survival_2.34-1 affy_1.20.0 [11] Biobase_2.2.1 loaded via a namespace (and not attached): [1] affyio_1.10.1 annotate_1.20.1 AnnotationDbi_1.4.2 [4] DBI_0.2-4 grid_2.8.1 lattice_0.17-17 [7] Matrix_0.999375-17 preprocessCore_1.4.0 RSQLite_0.7-1