# NoClassDefFoundError: org/apache/solr/client/solrj/impl/HttpSolrServer when using elasticsearch-river-solr

**URL:** https://discuss.elastic.co/t/noclassdeffounderror-org-apache-solr-client-solrj-impl-httpsolrserver-when-using-elasticsearch-river-solr/10641
**Category:** Elasticsearch
**Created:** [February 6, 2013, 7:11pm UTC](https://discuss.elastic.co/t/noclassdeffounderror-org-apache-solr-client-solrj-impl-httpsolrserver-when-using-elasticsearch-river-solr/10641 "2013-02-06T19:11:13Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![Way\_Cool](https://avatars.discourse-cdn.com/v4/letter/w/f4b2a3/32.png) [@Way\_Cool](https://discuss.elastic.co/u/Way_Cool)
#### Post date: [February 6, 2013, 7:11pm UTC](https://discuss.elastic.co/t/noclassdeffounderror-org-apache-solr-client-solrj-impl-httpsolrserver-when-using-elasticsearch-river-solr/10641/1 "2013-02-06T19:11:13Z")

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Hi, guys,

Do you see the following error after installing elasticsearch-river-solr plugin?

{

```
_index: _river
_type: solr_river
_id: _status
_version: 2
_score: 1
_source: {
    error: ComputationException[java.lang.NoClassDefFoundError: org/apache/solr/client/solrj/impl/HttpSolrServer]; nested: NoClassDefFoundError[org/apache/solr/client/solrj/impl/HttpSolrServer]; nested: ClassNotFoundException[org.apache.solr.client.solrj.impl.HttpSolrServer];
    node: {
        id: DrXysOwdRfuRFdFt9GELlQ
        name: Asmodeus
        transport_address: inet[/127.0.0.1:9300]
    }
}

```

}

I double checked solr-solrj-3.6.1.jar is there under elasticsearch-0.20.4/plugins/river-solr and the file contains the class.

Thanks,

---

<div class="post-metadata">

### Author: ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)
#### Post date: [July 6, 2017, 2:52am UTC](https://discuss.elastic.co/t/noclassdeffounderror-org-apache-solr-client-solrj-impl-httpsolrserver-when-using-elasticsearch-river-solr/10641/2 "2017-07-06T02:52:42Z")

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