title: Solr DataImportHandler not found
body: <p>I am using  <a href="http://www.apache.org/dyn/closer.cgi/lucene/solr/" rel="noreferrer">Solr 3.3.0</a> with Tomcat 6.0.26. I was able to successfully install Solr and i was even able to access its web interface using http:/localhost:8084/solr/admin.</p>
  
  <p>Now i want to use its dataimporthandler to index data from my database.I have added following to my solrconfig:</p>
  
  <pre><code>&lt;requestHandler name="/dataimport" class="org.apache.solr.handler.dataimport.DataImport
   Handler"&gt;
  &lt;lst name="defaults"&gt;
  &lt;str name="config"&gt;data-config.xml&lt;/str&gt;
  &lt;/lst&gt;
  &lt;/requestHandler&gt; 
  </code></pre>
  
  <p>I have also created a data-config.xml in same directory.</p>
  
  <p>My solrconfig file has following location for dataimport</p>
  
  <pre><code>  &lt;lib dir="../../dist/" regex="apache-solr-dataimporthandler-\d.*\.jar" /&gt; 
  </code></pre>
  
  <p>And i have checked that dataimporthandler.jar file exist in the dist folder at following path C:\web\solr\example\lib\apache-solr-3.3.0\dist</p>
  
  <p>But whenever I type http:/localhost:8084/solr/dataimport or http:/localhost:8084/solr/admin/dataimport it says resource unavailable. I thought it was dur to some problem with Tomcat setting so i stopped tomcat and tried to start Solr from cmd using java -jar start.jar. And i get the following error</p>
  
  <pre><code>HTTP ERROR 500
  Problem accessing /solr/. Reason:
  Severe errors in solr configuration.
  Check your log files for more detailed information on what may be wrong.
  If you want solr to continue after configuration errors, change: 
  
  &lt;abortOnConfigurationError&gt;false&lt;/abortOnConfigurationError&gt;
  
  in solr.xml
  
  -------------------------------------------------------------
  org.apache.solr.common.SolrException: Error loading class    
      'org.apache.solr.handler.dataimport.DataImportHandler'
  at org.apache.solr.core.SolrResourceLoader.findClass(SolrResourceLoader.java:389)
  at org.apache.solr.core.SolrCore.createInstance(SolrCore.java:423)
  at org.apache.solr.core.SolrCore.createRequestHandler(SolrCore.java:459)
  at  
    org.apache.solr.core.RequestHandlers.initHandlersFromConfig(RequestHandlers.java:157)
  at org.apache.solr.core.SolrCore.&lt;init&gt;(SolrCore.java:563)
  at org.apache.solr.core.CoreContainer.create(CoreContainer.java:463)
  at org.apache.solr.core.CoreContainer.load(CoreContainer.java:316)
  at org.apache.solr.core.CoreContainer.load(CoreContainer.java:207)
  at 
     org.apache.solr.core.CoreContainer$Initializer.initialize(CoreContainer.java:130)
  at org.apache.solr.servlet.SolrDispatchFilter.init(SolrDispatchFilter.java:94)
  at org.mortbay.jetty.servlet.FilterHolder.doStart(FilterHolder.java:97)
  at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
  at org.mortbay.jetty.servlet.ServletHandler.initialize(ServletHandler.java:713)
  at org.mortbay.jetty.servlet.Context.startContext(Context.java:140)
  at org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1282)
  at org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java:518)
  at org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java:499)
  at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
  at org.mortbay.jetty.handler.HandlerCollection.doStart(HandlerCollection.java:152)
  at 
   org.mortbay.jetty.handler.ContextHandlerCollection.doStart
   (ContextHandlerCollection.java:156)
  at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
  at org.mortbay.jetty.handler.HandlerCollection.doStart(HandlerCollection.java:152)
  at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
  at org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:130)
  at org.mortbay.jetty.Server.doStart(Server.java:224)
  at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
  at org.mortbay.xml.XmlConfiguration.main(XmlConfiguration.java:985)
  at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
  at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
  at java.lang.reflect.Method.invoke(Unknown Source)
  at org.mortbay.start.Main.invokeMain(Main.java:194)
  at org.mortbay.start.Main.start(Main.java:534)
  at org.mortbay.start.Main.start(Main.java:441)
  at org.mortbay.start.Main.main(Main.java:119)
    Caused by: java.lang.ClassNotFoundException:   
    org.apache.solr.handler.dataimport.DataImportHandler
  at java.net.URLClassLoader$1.run(Unknown Source)
  at java.security.AccessController.doPrivileged(Native Method)
  at java.net.URLClassLoader.findClass(Unknown Source)
  at java.lang.ClassLoader.loadClass(Unknown Source)
  at java.net.FactoryURLClassLoader.loadClass(Unknown Source)
  at java.lang.ClassLoader.loadClass(Unknown Source)
  at java.lang.Class.forName0(Native Method)
  at java.lang.Class.forName(Unknown Source)
  at org.apache.solr.core.SolrResourceLoader.findClass(SolrResourceLoader.java:373)
  ... 34 more
  </code></pre>