I have tried Text package but still have problems... I get "Index of specified original document column is not valid" when I try to pass my column which is a list of terms (e.g. Word1, Word2, ... Word Nk) through "String To Document" and then "Bag of Words Creator" and then "Document Vector". Don't understand what the error means
Can you please post your workflow here so that we can have a look? It sounds like at some point, you are selecting the wrong column in one of the nodes' configurations.