there is a new issue since R version 3.4 with the package GenomicFeatures:
I created my own BSgenome package for Candida glabrata and loaded the GFF file with
txdb <- makeTxDbFromGFF(file=gffFile,dataSource="CGDB",
Import genomic features from the file as a GRanges object ... OK
Prepare the 'metadata' data frame ... Fehler in FUN(X[[i]], ...) :
1 unknown species: ‘Candida glabrata’ Please use 'available.species' to see viable species names or tax Ids
This issue does not occur in R version 3.3. Is there specific metadata required now ?