Lenskit: How to add ratings from arraylist to EvenCollectionDao?

Asked Apr 12 '18 at 12:47

Active Apr 12 '18 at 13:30

Viewed 46 times

I am trying to add the static ratings to EventCollectionDao:

List<Rating> rs = new ArrayList<>();
    rs.add(org.grouplens.lenskit.data.event.Ratings.make(1, 2, 3));
    EventCollectionDAO dao = new EventCollectionDAO(rs);

But it yields this error:

Exception in thread "main" java.lang.NoSuchMethodError: org.grouplens.lenskit.collections.CollectionUtils.fast(Ljava/lang/Iterable;)Ljava/lang/Iterable; at org.grouplens.lenskit.data.dao.EventCollectionDAO.(EventCollectionDAO.java:58)

edited Apr 12 '18 at 13:30

Ovidiu Dolha

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asked Apr 12 '18 at 12:47

theNoobProgrammer

What version(s) of LensKit components are you using? This looks like it is most likely a version mismatch between two LensKit components. – Michael Ekstrand Apr 13 '18 at 15:14
1

Okay it's sorted now was using 2 different versions of lenskit. – theNoobProgrammer Apr 15 '18 at 08:04

Lenskit: How to add ratings from arraylist to EvenCollectionDao?

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