Team, When I was trying the reuters examples using lda (./bin/mahout lda -i ./examples/bin/work/reuters-out-seqdir-sparse/tf-vectors -o ./examples/bin/work/reuters-lda -k 20 -v 50000 -ow -x 20) encountered the below exception.
Exception in thread "main" java.lang.NullPointerException at org.apache.mahout.clustering.lda.LDADriver.runIteration(LDADriver.java:259) at org.apache.mahout.clustering.lda.LDADriver.run(LDADriver.java:174) at org.apache.mahout.clustering.lda.LDADriver.run(LDADriver.java:152) at org.apache.mahout.clustering.lda.LDADriver.main(LDADriver.java:78) I've to run to office and so havent fully analyzed the issue but thought i'll quickly post it incase someone is aware of the solution. As far as i saw it looks like conf.set(STATE_IN_KEY, stateIn.toString()); is throwing this NPE because object conf is null. We are setting the conf object by calling getConf() If anyone is aware of this issue please share the details for fix. regards Joe.
