Elasticsearch 6.0 命令行Option -E启动报错，求大佬指导，感谢！

bin/elasticsearch -Edefault.path.data=/disk1/elasticsearch/data,/disk2/elasticsearch/data,/disk3/elasticsearch/data  -Edefault.path.conf=/home/elasticsearch_i1/config

[2018-12-03T18:18:02,703][INFO ][o.e.p.PluginsService     ] [es-i1] loaded module [repository-url]

[2018-12-03T18:18:02,703][INFO ][o.e.p.PluginsService     ] [es-i1] loaded module [transport-netty4]

[2018-12-03T18:18:02,703][INFO ][o.e.p.PluginsService     ] [es-i1] loaded module [tribe]

[2018-12-03T18:18:02,703][INFO ][o.e.p.PluginsService     ] [es-i1] loaded plugin [x-pack]

[2018-12-03T18:18:03,916][WARN ][o.e.b.ElasticsearchUncaughtExceptionHandler] [es-i1] uncaught exception in thread [main]

org.elasticsearch.bootstrap.StartupException: java.lang.IllegalArgumentException: unknown setting [default.path.conf] please check that any required plugins are installed, or check the breaking changes documentation for removed settings

    at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:134) ~[elasticsearch-6.0.0.jar:6.0.0]

    at org.elasticsearch.bootstrap.Elasticsearch.execute(Elasticsearch.java:121) ~[elasticsearch-6.0.0.jar:6.0.0]

    at org.elasticsearch.cli.EnvironmentAwareCommand.execute(EnvironmentAwareCommand.java:69) ~[elasticsearch-6.0.0.jar:6.0.0]

    at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:134) ~[elasticsearch-6.0.0.jar:6.0.0]

    at org.elasticsearch.cli.Command.main(Command.java:90) ~[elasticsearch-6.0.0.jar:6.0.0]

    at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:92) ~[elasticsearch-6.0.0.jar:6.0.0]

    at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:85) ~[elasticsearch-6.0.0.jar:6.0.0]

Caused by: java.lang.IllegalArgumentException: unknown setting [default.path.conf] please check that any required plugins are installed, or check the breaking changes documentation for removed settings

    at org.elasticsearch.common.settings.AbstractScopedSettings.validate(AbstractScopedSettings.java:293) ~[elasticsearch-6.0.0.jar:6.0.0]

    at org.elasticsearch.common.settings.AbstractScopedSettings.validate(AbstractScopedSettings.java:256) ~[elasticsearch-6.0.0.jar:6.0.0]

    at org.elasticsearch.common.settings.SettingsModule.<init>(SettingsModule.java:135) ~[elasticsearch-6.0.0.jar:6.0.0]