The biomart package stopped working for today. I used the exact same code I run several weeks ago, but now it can not be executed. The attached is my code and error message:
> ensembl=useMart("ensembl", dataset="hsapiens_gene_ensembl")
Error in checkDataset(dataset = dataset, mart = mart) :
The given dataset: hsapiens_gene_ensembl , is not valid. Correct dataset names can be obtained with the listDatasets() function.
Then I tried load a different dataset, still did not work!
It will be really appreciated if anyone can help!