[ensembl-dev] Problem to access Ensembl 62 archive using biomaRt

[Frederic Bastian]

Hi everyone,

I wanted to access Ensembl 62 using the biomaRt package for R, but it 
seems to be an issue with the list of datasets available.

The following command works fine for Ensembl 61:
mart <- useMart( "ENSEMBL_MART_ENSEMBL", 
dataset="hsapiens_gene_ensembl", host="feb2011.archive.ensembl.org")

But fails for Ensembl 62 (host="apr2011.archive.ensembl.org"). It seems 
there is no dataset available:
mart <- useMart( "ENSEMBL_MART_ENSEMBL", host="apr2011.archive.ensembl.org")
listDatasets(mart)  # returns no result

Thank you for your help,
Frederic.