Looks like you did not set recommender.class in the properties file. Have a look at https://cwiki.apache.org/confluence/display/MAHOUT/Recommender+Documentation
On Sat, Nov 6, 2010 at 10:18 AM, Deche Pangestu <[email protected]> wrote: > Hi Sean, > > Ok, so I ran jetty in debug mode. Acessing > http://localhost:8080/RecommenderServlet?userID=1 gave this error > > HTTP ERROR 503 > > Problem accessing /RecommenderServlet. Reason: > > org.apache.mahout.cf.taste.common.TasteException: > java.lang.ClassNotFoundException: ${recommender.class} > >
