My code is working fine on Ubuntu 14.04. But, when i migrated to Ubuntu 16.04, I get the following error for annotation with codelink package. The error comes when I select the annotation database.

select(hwgcod.db, ......, c("SYMBOL"), "ACCNUM")

Error:

Warning: Error in UseMethod: no applicable method for 'select_' applied to an object of class "c('ChipDb', 'AnnotationDb', 'envRefClass', '.environment', 'refClass', 'environment', 'refObject', 'AssayData')"

I have all the required packages installed. Is Ubuntu 16.04 the reason or there is some other reason?

Likely you have loaded dplyr or similar after the annotation package, and there is a symbol collision; try AnnotationDbi::select(...).