Transcript expression analysis

Question

[shatabdidebproma]

I am doing expression analysis using edgeR and DEseq2. In edgeR I used biomart package where I loaded ensemble gene id and entrez gene id for gene expression analysis. It worked fine. But when I was trying to do transcript expression analysis I loaded ensemble transcript id and transcript biotype and it did not work. Can you suggest me what else can I load along with ensemble transcript id?

[ATpoint]

did not work is not a meaningful error message. Please describe the problem better and add code/error messages.