es配置報錯expected '<document start>'

D:\my-program\elasticsearch-6.3.2\bin>elasticsearch.bat
Exception in thread "main" 2019-07-02 18:02:44,006 main ERROR No log4j2 configuration file found. Using default configuration: logging only errors to the console. Set system property 'log4j2.debug' to show Log4j2 internal initialization logging.
ElasticsearchParseException[malformed, expected end of settings but encountered additional content starting at line number: [90], column number: [1]]; nested: MarkedYAMLException[expected '<document start>', but found Scalar
 in 'reader', line 90, column 1:
    path
    ^

 at [Source: sun.nio.ch.ChannelInputStream@185a6e9; line: 90, column: 1]]; nested: ParserException[expected '<document start>', but found Scalar
 in 'reader', line 90, column 1:
    path
    ^
];
        at org.elasticsearch.common.settings.Settings.fromXContent(Settings.java:685)
        at org.elasticsearch.common.settings.Settings.access$500(Settings.java:84)
        at org.elasticsearch.common.settings.Settings$Builder.loadFromStream(Settings.java:1188)
        at org.elasticsearch.common.settings.Settings$Builder.loadFromPath(Settings.java:1165)
        at org.elasticsearch.node.InternalSettingsPreparer.prepareEnvironment(InternalSettingsPreparer.java:100)
        at org.elasticsearch.cli.EnvironmentAwareCommand.createEnv(EnvironmentAwareCommand.java:95)
        at org.elasticsearch.cli.EnvironmentAwareCommand.execute(EnvironmentAwareCommand.java:86)
        at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:124)
        at org.elasticsearch.cli.Command.main(Command.java:90)
        at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:93)
        at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:86)
Caused by: com.fasterxml.jackson.dataformat.yaml.snakeyaml.error.MarkedYAMLException: expected '<document start>', but found Scalar
 in 'reader', line 90, column 1:
    path
    ^

 at [Source: sun.nio.ch.ChannelInputStream@185a6e9; line: 90, column: 1]
        at com.fasterxml.jackson.dataformat.yaml.snakeyaml.error.MarkedYAMLException.from(MarkedYAMLException.java:27)
        at com.fasterxml.jackson.dataformat.yaml.YAMLParser.nextToken(YAMLParser.java:343)
        at org.elasticsearch.common.xcontent.json.JsonXContentParser.nextToken(JsonXContentParser.java:53)
        at org.elasticsearch.common.settings.Settings.fromXContent(Settings.java:680)
        ... 10 more
Caused by: expected '<document start>', but found Scalar
 in 'reader', line 90, column 1:
    path
    ^

        at org.yaml.snakeyaml.parser.ParserImpl$ParseDocumentStart.produce(ParserImpl.java:224)
        at org.yaml.snakeyaml.parser.ParserImpl.peekEvent(ParserImpl.java:157)
        at org.yaml.snakeyaml.parser.ParserImpl.getEvent(ParserImpl.java:167)
        at com.fasterxml.jackson.dataformat.yaml.YAMLParser.nextToken(YAMLParser.java:340)
        ... 12 more

配置時候遇到這個bug
expected '<document start>
搞了半天，原來是 配置前要加個空格