From the changelog:
187 * SOLR-2588: Moved VelocityResponseWriter back to contrib module in order to 188 remove it as a mandatory core dependency. (Erik Hatcher) http://svn.apache.org/viewvc/lucene/dev/branches/branch_3x/solr/CHANGES.txt?view=markup > I just migrated to Solr 3.5 and whenever i start it up i get the error > below. Any ideas what might be wrong? Previously i didn't have to do > anything special to get it to work. HAs anything changed in solr 3.5? > > > 08-Dec-2011 10:45:03 org.apache.solr.common.SolrException log > SEVERE: org.apache.solr.common.SolrException: Error loading class > 'solr.VelocityResponseWriter' > at > org.apache.solr.core.SolrResourceLoader.findClass(SolrResourceLoader.java:3 > 89) at org.apache.solr.core.SolrCore.createInstance(SolrCore.java:425) at > org.apache.solr.core.SolrCore.createInitInstance(SolrCore.java:447) > at org.apache.solr.core.SolrCore.initPlugins(SolrCore.java:1556) > at org.apache.solr.core.SolrCore.initPlugins(SolrCore.java:1550) > at org.apache.solr.core.SolrCore.initPlugins(SolrCore.java:1583) > at org.apache.solr.core.SolrCore.initWriters(SolrCore.java:1466) > at org.apache.solr.core.SolrCore.<init>(SolrCore.java:556) > 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.jav > a:130) at > org.apache.solr.servlet.SolrDispatchFilter.init(SolrDispatchFilter.java:94) > at > org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilte > rConfig.java:295) at > org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFi > lterConfig.java:422) at > org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterCo > nfig.java:115) at > org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4 > 001) at > org.apache.catalina.core.StandardContext.start(StandardContext.java:4651) > at > org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java: > 791) at > org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:771) > at > org.apache.catalina.core.StandardHost.addChild(StandardHost.java:546) > at > org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:637 > ) at > org.apache.catalina.startup.HostConfig.deployDescriptors(HostConfig.java:56 > 3) at > org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:498) > at > org.apache.catalina.startup.HostConfig.start(HostConfig.java:1277) > at > org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:321) > at > org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSuppo > rt.java:119) at > org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053) > at > org.apache.catalina.core.StandardHost.start(StandardHost.java:785) > at > org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045) > at > org.apache.catalina.core.StandardEngine.start(StandardEngine.java:445) > at > org.apache.catalina.core.StandardService.start(StandardService.java:519) > at > org.apache.catalina.core.StandardServer.start(StandardServer.java:710) > at org.apache.catalina.startup.Catalina.start(Catalina.java:581) > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > at > sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:3 > 9) at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImp > l.java:25) at java.lang.reflect.Method.invoke(Method.java:597) > at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289) > at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414) > Caused by: java.lang.ClassNotFoundException: solr.VelocityResponseWriter > at java.net.URLClassLoader$1.run(URLClassLoader.java:200) > at java.security.AccessController.doPrivileged(Native Method) > at java.net.URLClassLoader.findClass(URLClassLoader.java:188) > at java.lang.ClassLoader.loadClass(ClassLoader.java:303) > at > java.net.FactoryURLClassLoader.loadClass(URLClassLoader.java:592) at > java.lang.ClassLoader.loadClass(ClassLoader.java:248) > at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:316) > at java.lang.Class.forName0(Native Method) > at java.lang.Class.forName(Class.java:247) > at > org.apache.solr.core.SolrResourceLoader.findClass(SolrResourceLoader.java:3 > 73) ... 39 more
