相关疑难解决方法(0)

我自己编写自己的代码来索引一些数据文件.一切正常.一旦我修改了schema.xml文件,现在我得到内部服务器错误,我不知道如何解释它.

Internal Server Error

request: http://127.0.0.1:8080/solr/update?wt=javabin&version=2
    at org.apache.solr.client.solrj.impl.CommonsHttpSolrServer.request(CommonsHttpSolrServer.java:427)
    at org.apache.solr.client.solrj.impl.CommonsHttpSolrServer.request(CommonsHttpSolrServer.java:249)
    at org.apache.solr.client.solrj.request.AbstractUpdateRequest.process(AbstractUpdateRequest.java:105)
    at org.apache.solr.client.solrj.SolrServer.add(SolrServer.java:69)
    at org.apache.solr.client.solrj.SolrServer.add(SolrServer.java:54)
    at solr.client.SolrClient.index(SolrClient.java:109)
    at solr.client.SolrClient.main(SolrClient.java:26)

然后我查看catalina日志文件,它说没有核心创建...

   Jun 26, 2012 2:09:21 AM org.apache.solr.core.SolrCore close
INFO: []  CLOSING SolrCore org.apache.solr.core.SolrCore@5675b3ee
Jun 26, 2012 2:09:21 AM org.apache.solr.common.SolrException log
SEVERE: java.lang.NullPointerException
    at org.apache.solr.core.SolrCore.close(SolrCore.java:712)
    at org.apache.solr.core.SolrCore.<init>(SolrCore.java:599)
    at org.apache.solr.core.CoreContainer.create(CoreContainer.java:483)
    at org.apache.solr.core.CoreContainer.load(CoreContainer.java:335)
    at org.apache.solr.core.CoreContainer.load(CoreContainer.java:219)
    at org.apache.solr.core.CoreContainer$Initializer.initialize(CoreContainer.java:161)
    at org.apache.solr.servlet.SolrDispatchFilter.init(SolrDispatchFilter.java:96)
    at org.apache.catalina.core.ApplicationFilterConfig.initFilter(ApplicationFilterConfig.java:277)
    at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:258)
    at org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:382)
    at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:103)
    at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4638)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5294)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:895)
    at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:871)
    at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:615)
    at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:649) …