Hi Roee, I think that in addition to the fact that the feature param is blank in the model JSON, you should also make sure that the features you put in the JSON have been added to the feature-store. This generic error also occurs when the features haven't been added to the feature store.
In addition, for Multiple Additive Trees Model, you should also make sure you have quotes around the values, as shown here: https://lucene.apache.org/solr/7_3_1/solr-ltr/org/apache/solr/ltr/model/MultipleAdditiveTreesModel.html If you do not add quotes, the same 'Model type does not exist' error will occur. Hope this helps! On Sat, Apr 6, 2019 at 1:03 AM Kamal Kishore Aggarwal <kkroyal....@gmail.com> wrote: > Hi Roee, > > It looks the error is due to blank feature param value in the json. > > "name" : "my", > "features":[], > "params" : { > > I have observed that many a times solr ltr returns generic error that > 'Model > type does not > exist', but later actually found to be an issue with json. Just wanted to > share my experience. > > Regards > Kamal > > On Thu, May 31, 2018 at 4:07 PM Roee T <roeeta...@gmail.com> wrote: > > > Hi all, > > I'm trying to upload the most simple model to solr 7.3.1 and i get an > > error: > > > > the model: > > > > { > > "class" : "org.apache.solr.ltr.model.MultipleAdditiveTreesModel", > > "name" : "my", > > "features":[], > > "params" : { > > "trees" : [ > > { > > "weight" : 1, > > "root" : { > > "value" : -10 > > }} ]}} > > > > The error: > > "error":{ > > "metadata":[ > > "error-class","org.apache.solr.common.SolrException", > > "root-error-class","java.lang.IllegalArgumentException"], > > "msg":"org.apache.solr.ltr.model.ModelException: Model type does not > > exist org.apache.solr.ltr.model.MultipleAdditiveTreesModel", > > "code":400}} > > > > > > I inserted the configurations to solrconfig.xml like > > <lib dir="${solr.install.dir:../../../..}/contrib/langid/lib/" > > regex=".*\.jar" /> > > and started solr using -Dsolr.ltr.enabled=true > > > > please help me > > Thanks you all ;) > > > > > > > > -- > > Sent from: http://lucene.472066.n3.nabble.com/Solr-User-f472068.html > > >
