liquibase noob再次触发-sqlfile标记出错

我使用sqlfile包含一个SQL脚本,该脚本使用特定于Oracle的命令(nocache,no parallel,诸如此类)创建表。我的master.xml文件包含所有SQL脚本并执行它们。但是,当它检测到标签时,它会失败并打印此错误消息。

C:\update.bat master.xml
Migration Failed: cvc-complex-type.2.4.a: Invalid content was found starting with element 'sqlFile'. 
One of '{
"http://www.liquibase.org/xml/ns/dbchangelog/1.9":preConditions,
"http://www.liquibase.org/xml/ns/dbchangelog/1.9":property,
"http://www.liquibase.org/xml/ns/dbchangelog/1.9":changeSet, 
"http://www.liquibase.org/xml/ns/dbchangelog/1.9":include,
"http://www.liquibase.org/xml/ns/dbchangelog/1.9":includeAll
}' is expected.

我的master.xml非常简单

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<databaseChangeLog xmlns="http://www.liquibase.org/xml/ns/dbchangelog/1.9"
                   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
                   xsi:schemaLocation="http://www.liquibase.org/xml/ns/dbchangelog/1.9 http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-1.9.xsd">

    <sqlFile path="createUsers.sql"/>
</databaseChangeLog>

任何想法都将受到极大的赞赏。 事先谢谢。