mai 01 23:27:15 Akira elasticsearch[26881]: at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:92)
mai 01 23:27:15 Akira elasticsearch[26881]: at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:85)
mai 01 23:27:15 Akira elasticsearch[26881]: 2018-05-01 23:27:15,572 main ERROR Null object returned for RollingFile in Appenders.
mai 01 23:27:15 Akira elasticsearch[26881]: 2018-05-01 23:27:15,573 main ERROR Null object returned for RollingFile in Appenders.
mai 01 23:27:15 Akira elasticsearch[26881]: 2018-05-01 23:27:15,574 main ERROR Unable to locate appender "rolling" for logger config "root"
mai 01 23:27:15 Akira elasticsearch[26881]: 2018-05-01 23:27:15,574 main ERROR Unable to locate appender "index_indexing_slowlog_rolling" for logger config "index.indexing.slowlog.i
mai 01 23:27:15 Akira elasticsearch[26881]: 2018-05-01 23:27:15,575 main ERROR Unable to locate appender "index_search_slowlog_rolling" for logger config "index.search.slowlog"
mai 01 23:27:15 Akira elasticsearch[26881]: 2018-05-01 23:27:15,575 main ERROR Unable to locate appender "deprecation_rolling" for logger config "org.elasticsearch.deprecation"
mai 01 23:27:15 Akira systemd[1]: elasticsearch.service: Main process exited, code=exited, status=1/FAILURE
mai 01 23:27:15 Akira systemd[1]: elasticsearch.service: Failed with result 'exit-code'.
如何修复它，我尝试启动Elastic Search并收到此消息。我在Ubuntu Budgie 18.04，Elastic Search 1.51，由.deb和Java 1.8.0安装。我研究过：Log errors when starting Es，Es doesn’t start and there is no log ......但没有任何效果。