WFLYCTL0085: Failed to parse configuration

https://cursos.alura.com.br/course/ejb/section/3/task/8

Estou com o seguinte erro:

17:24:33,712 INFO  [org.jboss.modules] (main) JBoss Modules version 1.5.2.Final
17:24:34,277 INFO  [org.jboss.msc] (main) JBoss MSC version 1.2.6.Final
17:24:34,535 INFO  [org.jboss.as] (MSC service thread 1-7) WFLYSRV0049: WildFly Full 10.1.0.Final (WildFly Core 2.2.0.Final) starting
17:24:37,644 ERROR [org.jboss.as.server] (Controller Boot Thread) WFLYSRV0055: Caught exception during boot: org.jboss.as.controller.persistence.ConfigurationPersistenceException: WFLYCTL0085: Failed to parse configuration
    at org.jboss.as.controller.persistence.XmlConfigurationPersister.load(XmlConfigurationPersister.java:131)
    at org.jboss.as.server.ServerService.boot(ServerService.java:357)
    at org.jboss.as.controller.AbstractControllerService$1.run(AbstractControllerService.java:299)
    at java.lang.Thread.run(Unknown Source)
Caused by: javax.xml.stream.XMLStreamException: ParseError at [row,col]:[142,1]
Message: WFLYCTL0198: Unexpected element '{urn:jboss:domain:4.2}datasource' encountered
    at org.jboss.as.controller.parsing.ParseUtils.unexpectedElement(ParseUtils.java:89)
    at org.jboss.as.server.parsing.StandaloneXml_4.parseServerProfile(StandaloneXml_4.java:537)
    at org.jboss.as.server.parsing.StandaloneXml_4.readServerElement(StandaloneXml_4.java:242)
    at org.jboss.as.server.parsing.StandaloneXml_4.readElement(StandaloneXml_4.java:141)
    at org.jboss.as.server.parsing.StandaloneXml.readElement(StandaloneXml.java:103)
    at org.jboss.as.server.parsing.StandaloneXml.readElement(StandaloneXml.java:49)
    at org.jboss.staxmapper.XMLMapperImpl.processNested(XMLMapperImpl.java:110)
    at org.jboss.staxmapper.XMLMapperImpl.parseDocument(XMLMapperImpl.java:69)
    at org.jboss.as.controller.persistence.XmlConfigurationPersister.load(XmlConfigurationPersister.java:123)
    ... 3 more

17:24:37,647 FATAL [org.jboss.as.server] (Controller Boot Thread) WFLYSRV0056: Server boot has failed in an unrecoverable manner; exiting. See previous messages for details.
17:24:37,672 INFO  [org.jboss.as] (MSC service thread 1-6) WFLYSRV0050: WildFly Full 10.1.0.Final (WildFly Core 2.2.0.Final) stopped in 6ms

Segue minhas classes:

persistence.xml:

<persistence xmlns="http://java.sun.com/xml/ns/persistence"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://java.sun.com/xml/ns/persistence
        http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd"
    version="2.0">

    <persistence-unit name="livraria">

        <provider>org.hibernate.ejb.HibernatePersistence</provider>

         <!-- <jta-data-source>java:jboss/datasources/livraria-ds</jta-data-source> -->
         <jta-data-source>java:/livrariaDS</jta-data-source>

        <class>br.com.caelum.livraria.modelo.Autor</class>
        <class>br.com.caelum.livraria.modelo.Livro</class>
        <class>br.com.caelum.livraria.modelo.Usuario</class>

        <properties>

             <!-- Configuracoes da conexao -->
    <property name="javax.persistence.jdbc.driver" value="com.mysql.jdbc.Driver" />
    <property name="javax.persistence.jdbc.url" value="jdbc:mysql://localhost/livraria" />
    <property name="javax.persistence.jdbc.user" value="root" />
    <property name="javax.persistence.jdbc.password" value="admin" />

            <!-- Configuracoes especificas do Hibernate -->
            <property name="hibernate.dialect" value="org.hibernate.dialect.MySQL5InnoDBDialect" />
            <property name="hibernate.hbm2ddl.auto" value="update" />
            <property name="hibernate.show_sql" value="true" />

        </properties>
    </persistence-unit>
</persistence>

Standalone:

<datasource jta="true" jndi-name="java:jboss/datasources/livraria-ds" pool-name="livraria" enabled="true" use-java-context="true" use-ccm="true">
    <!-- Aqui você deve colocar o endereço da sua base de dados -->
    <connection-url>jdbc:mysql://localhost:3306/livraria</connection-url>
    <driver name="mysql" module="com.mysql">
    <xa-datasource-class>com.mysql.jdbc.jdbc2.optional.MysqlXADataSource</xa-datasource-class>
</driver>
    <transaction-isolation>TRANSACTION_READ_COMMITTED</transaction-isolation>
    <pool>
        <min-pool-size>10</min-pool-size>
        <max-pool-size>100</max-pool-size>
        <prefill>true</prefill>
    </pool>
    <security>
        <user-name>root</user-name>
        <password>admin</password>
    </security>
    <statement>
        <prepared-statement-cache-size>32</prepared-statement-cache-size>
        <share-prepared-statements>true</share-prepared-statements>
    </statement>
</datasource>