Hi, I have gotten solr 4.3 up and running on tomcat7/windows7. I have added the two dataimport handler jars (found in the dist folder of my solr 4.3 download) to the tomcat/lib folder (where I also placed the solr.war).
Then I added the following line to my solrconfig.xml: <requestHandler name="/dataimport" class="org.apache.solr.handler.dataimport.DataImportHandler"> <lst name="defaults"> <str name="config">dih-config.xml</str> </lst> </requestHandler> When I start tomcat, I get the stack trace shown below (commenting out the above lines causes tomcat & solr to start up just fine). ERROR - 2013-05-08 10:43:48.185; org.apache.solr.core.CoreContainer; Unable to create core: collection1 org.apache.solr.common.SolrException: org/apache/solr/util/plugin/SolrCoreAware at org.apache.solr.core.SolrCore.<init>(SolrCore.java:821) at org.apache.solr.core.SolrCore.<init>(SolrCore.java:618) at org.apache.solr.core.CoreContainer.createFromLocal(CoreContainer.java:949) at org.apache.solr.core.CoreContainer.create(CoreContainer.java:984) at org.apache.solr.core.CoreContainer$2.call(CoreContainer.java:597) at org.apache.solr.core.CoreContainer$2.call(CoreContainer.java:592) at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source) at java.util.concurrent.FutureTask.run(Unknown Source) at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source) at java.util.concurrent.FutureTask.run(Unknown Source) at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source) Caused by: java.lang.NoClassDefFoundError: org/apache/solr/util/plugin/SolrCoreAware at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(Unknown Source) at java.security.SecureClassLoader.defineClass(Unknown Source) at java.net.URLClassLoader.defineClass(Unknown Source) at java.net.URLClassLoader.access$100(Unknown Source) at java.net.URLClassLoader$1.run(Unknown Source) 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.lang.ClassLoader.loadClass(Unknown Source) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Unknown Source) at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1700) at java.lang.ClassLoader.loadClass(Unknown Source) at java.net.FactoryURLClassLoader.loadClass(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:448) at org.apache.solr.core.SolrResourceLoader.findClass(SolrResourceLoader.java:396) at org.apache.solr.core.SolrCore.createInstance(SolrCore.java:518) at org.apache.solr.core.SolrCore.createRequestHandler(SolrCore.java:592) at org.apache.solr.core.RequestHandlers.initHandlersFromConfig(RequestHandlers.java:154) at org.apache.solr.core.SolrCore.<init>(SolrCore.java:758) ... 13 more Caused by: java.lang.ClassNotFoundException: org.apache.solr.util.plugin.SolrCoreAware at java.net.URLClassLoader$1.run(Unknown Source) 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.lang.ClassLoader.loadClass(Unknown Source) ... 40 more ERROR - 2013-05-08 10:43:48.189; org.apache.solr.common.SolrException; null:org.apache.solr.common.SolrException: Unable to create core: collection1 at org.apache.solr.core.CoreContainer.recordAndThrow(CoreContainer.java:1450) at org.apache.solr.core.CoreContainer.create(CoreContainer.java:993) at org.apache.solr.core.CoreContainer$2.call(CoreContainer.java:597) at org.apache.solr.core.CoreContainer$2.call(CoreContainer.java:592) at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source) at java.util.concurrent.FutureTask.run(Unknown Source) at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source) at java.util.concurrent.FutureTask.run(Unknown Source) at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source) Caused by: org.apache.solr.common.SolrException: org/apache/solr/util/plugin/SolrCoreAware at org.apache.solr.core.SolrCore.<init>(SolrCore.java:821) at org.apache.solr.core.SolrCore.<init>(SolrCore.java:618) at org.apache.solr.core.CoreContainer.createFromLocal(CoreContainer.java:949) at org.apache.solr.core.CoreContainer.create(CoreContainer.java:984) ... 10 more Caused by: java.lang.NoClassDefFoundError: org/apache/solr/util/plugin/SolrCoreAware at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(Unknown Source) at java.security.SecureClassLoader.defineClass(Unknown Source) at java.net.URLClassLoader.defineClass(Unknown Source) at java.net.URLClassLoader.access$100(Unknown Source) at java.net.URLClassLoader$1.run(Unknown Source) 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.lang.ClassLoader.loadClass(Unknown Source) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Unknown Source) at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1700) at java.lang.ClassLoader.loadClass(Unknown Source) at java.net.FactoryURLClassLoader.loadClass(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:448) at org.apache.solr.core.SolrResourceLoader.findClass(SolrResourceLoader.java:396) at org.apache.solr.core.SolrCore.createInstance(SolrCore.java:518) at org.apache.solr.core.SolrCore.createRequestHandler(SolrCore.java:592) at org.apache.solr.core.RequestHandlers.initHandlersFromConfig(RequestHandlers.java:154) at org.apache.solr.core.SolrCore.<init>(SolrCore.java:758) ... 13 more Caused by: java.lang.ClassNotFoundException: org.apache.solr.util.plugin.SolrCoreAware at java.net.URLClassLoader$1.run(Unknown Source) 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.lang.ClassLoader.loadClass(Unknown Source) ... 40 more Any ideas on what I doing wrong? Bill