OK, why are you running the BookCrossing demo with GroupLens data? That appears to be the next issue.
On Thu, Feb 24, 2011 at 1:07 PM, Cristian Lai <[email protected]> wrote: > > Caused by: java.lang.IllegalArgumentException: Did not find a delimiter in > first line > at > org.apache.mahout.cf.taste.impl.model.file.FileDataModel.determineDelimiter(FileDataModel.java:318) > at > org.apache.mahout.cf.taste.impl.model.file.FileDataModel.<init>(FileDataModel.java:179) > at > org.apache.mahout.cf.taste.impl.model.file.FileDataModel.<init>(FileDataModel.java:146) > at > org.apache.mahout.cf.taste.example.bookcrossing.BookCrossingDataModel.<init>(BookCrossingDataModel.java:53) > at > org.apache.mahout.cf.taste.example.bookcrossing.BookCrossingRecommenderEvaluatorRunner.main(BookCrossingRecommenderEvaluatorRunner.java:43) > >
