Elasticsearch error, after xpack authencation enabled

[k_noor]

HI All,
I have enabled the pack for authentication purpose, but error has reported as below.
Cloud you please help in this.

at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:173) ~[elasticsearch-7.17.9.jar:7.17.9]
at org.elasticsearch.bootstrap.Elasticsearch.execute(Elasticsearch.java:160) ~[elasticsearch-7.17.9.jar:7.17.9]
at org.elasticsearch.cli.EnvironmentAwareCommand.execute(EnvironmentAwareCommand.java:77) ~[elasticsearch-7.17.9.jar:7.17.9]
at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:112) ~[elasticsearch-cli-7.17.9.jar:7.17.9]
at org.elasticsearch.cli.Command.main(Command.java:77) ~[elasticsearch-cli-7.17.9.jar:7.17.9]
at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:125) ~[elasticsearch-7.17.9.jar:7.17.9]
at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:80) ~[elasticsearch-7.17.9.jar:7.17.9]
Caused by: java.lang.IllegalArgumentException: unknown setting [xpack.security.enrollment.enabled] did you mean any of [xpack.security.fips_mode.enabled, xpack.security.dls_fls.enabled, xpack.security.audit.enabled, xpack.security.authc.token.enabled, xpack.security.http.filter.enabled]?
at org.elasticsearch.common.settings.AbstractScopedSettings.validate(AbstractScopedSettings.java:561) ~[elasticsearch-7.17.9.jar:7.17.9]
at org.elasticsearch.common.settings.AbstractScopedSettings.validate(AbstractScopedSettings.java:507) ~[elasticsearch-7.17.9.jar:7.17.9]
at org.elasticsearch.common.settings.AbstractScopedSettings.validate(AbstractScopedSettings.java:477) ~[elasticsearch-7.17.9.jar:7.17.9]
at org.elasticsearch.common.settings.AbstractScopedSettings.validate(AbstractScopedSettings.java:447) ~[elasticsearch-7.17.9.jar:7.17.9]
at org.elasticsearch.common.settings.SettingsModule.(SettingsModule.java:137) ~[elasticsearch-7.17.9.jar:7.17.9]
at org.elasticsearch.node.Node.(Node.java:502) ~[elasticsearch-7.17.9.jar:7.17.9]
at org.elasticsearch.node.Node.(Node.java:309) ~[elasticsearch-7.17.9.jar:7.17.9]
at org.elasticsearch.bootstrap.Bootstrap$5.(Bootstrap.java:234) ~[elasticsearch-7.17.9.jar:7.17.9]
at org.elasticsearch.bootstrap.Bootstrap.setup(Bootstrap.java:234) ~[elasticsearch-7.17.9.jar:7.17.9]
at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:434) ~[elasticsearch-7.17.9.jar:7.17.9]
at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:169) ~[elasticsearch-7.17.9.jar:7.17.9]
... 6 more

[Yang_Wang]

Security autoconfiguration is a feature for version 8.0+. The setting xpack.security.enrollment.enabled is part of it. Since you are using version 7.17.9, it does not understand this setting. You need remove it from the YAML configuration file.