我已经在本地机器上用Nutch测试了SOLR，它运行时没有错误。现在我已经将它部署到实时服务器上，并得到了这个错误255
enter code here
Indexing 139/139 documents
Deleting 0 documents
Indexing job did not succeed, job status:FAILED, reason: NA
Indexer: java.lang.RuntimeException: Indexing job did not succeed, job status:FAILED, reason: NA
at org.apache.nutch.indexer.IndexingJob.index(IndexingJob.java:150)
at org.apache.nutch.indexer.IndexingJob.run(IndexingJob.java:291)
at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:76)
at org.apache.nutch.indexer.IndexingJob.main(IndexingJob.java:300)
Error running:
/home/apache-nutch-1.18/runtime/local/bin/nutch index -Dsolr.server.url=http://localhost:8984/solr/nutch -Dmapreduce.job.reduces=2 -Dmapreduce.reduce.speculative=false -Dmapreduce.map.speculative=false -Dmapreduce.map.output.compress=true crawl/crawldb -linkdb crawl/linkdb crawl/segments/20220728170007 -deleteGone
在此处输入代码
失败，退出值为255。有人知道这可能是什么吗？
显示SOLR中是否存在核心安装ant(如果不存在(转到$NUTCH_HOME并运行>apt运行时这就是所有人，现在将运行并编写