Hi Kevin, Thanks for the info.
I think should be lingo3g problem. The problem occurs when I use Lingo3GClusteringAlgorithm. <str name="carrot.algorithm">com.carrotsearch.lingo3g.Lingo3GClusteringAlgorithm</str> If I change back to LingoClusteringAlgorithm, it will work. <str name="carrot.algorithm">org.carrot2.clustering.lingo.LingoClusteringAlgorithm</str> Regards, Edwin On Fri, 9 Aug 2019 at 10:59, Kevin Risden <kris...@apache.org> wrote: > According to the stack trace: > > java.lang.NoClassDefFoundError: org/apache/commons/lang/ObjectUtils > at lingo3g.s.hashCode(Unknown Source) > > It looks like lingo3g - lingo3g isn't on Maven central and looks like it > requires a license to download. You would have to contact them to see if it > still uses commons-lang. You could also copy in commons-lang dependency. > > Kevin Risden > > > On Thu, Aug 8, 2019 at 10:23 PM Zheng Lin Edwin Yeo <edwinye...@gmail.com> > wrote: > > > Hi Erick, > > > > Thanks for your reply. > > > > My clustering code is taken as it is from the Solr package, only the > codes > > related to lingo3g is taken from previous version. > > > > Below are the 3 files that I have taken from previous version: > > - lingo3g-1.15.0 > > - morfologik-fsa-2.1.1 > > - morfologik-stemming-2.1.1 > > > > Does anyone of these could have caused the error? > > > > Regards, > > Edwin > > > > On Thu, 8 Aug 2019 at 19:56, Erick Erickson <erickerick...@gmail.com> > > wrote: > > > > > This dependency was removed as part of > > > https://issues.apache.org/jira/browse/SOLR-9079, so my guess is you’re > > > pointing to an old version of the clustering code. > > > > > > Best, > > > Erick > > > > > > > On Aug 8, 2019, at 4:22 AM, Zheng Lin Edwin Yeo < > edwinye...@gmail.com> > > > wrote: > > > > > > > > ObjectUtils > > > > > > > > >