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Hi all, I am upgrading to Liferay 7.4 versión with JBoss 7.4 using this manual https://help.liferay.com/hc/es/articles/360028810012-Installing-Liferay-DXP-on-JBoss-EAP (Because i didn't find from 7.4, i don't know if work for this version).  I put my Postgres driver in my \modules\com\liferay\portal\main folder and declare it in module.xml 

<?xml version="1.0"?>

<module xmlns="urn:jboss:module:1.0" name="com.liferay.portal">
    <resources>
        <resource-root path="postgresql.jar" />
		<resource-root path="annotations-api.jar" />
    </resources>
    <dependencies>
        <module name="javax.api" />
        <module name="javax.mail.api" />
        <module name="javax.servlet.api" />
        <module name="javax.servlet.jsp.api" />
        <module name="javax.transaction.api" />
    </dependencies>
</module>

i create \modules\org\postgres\main folder because when i was using Liferay 7.1 i was on...

In \standalone\configuration\stadalone.xml i declare my database like this

<subsystem xmlns="urn:jboss:domain:datasources:6.0">
            <datasources>
                
				
				<datasource jndi-name="java:jboss/datasources/databaseName" pool-name="databaseName" enabled="true" use-java-context="true">
                    <connection-url>url database</connection-url>
                    <driver>postgresql</driver>
                    <security>
                        <user-name>user</user-name>
                        <password>password</password>
                    </security>
                </datasource>
				
                <drivers>
                   
					
					<driver name="postgresql" module="org.postgres">
                        <xa-datasource-class>org.postgresql.Driver</xa-datasource-class>
                    </driver>
                </drivers>
            </datasources>
        </subsystem>

I have this errors

ERROR [org.jboss.as.controller.management-operation] (ServerService Thread Pool -- 41) WFLYCTL0013: Operation ("add") failed - address: ([
    ("subsystem" => "datasources"),
    ("jdbc-driver" => "postgresql")
]) - bug description: "WFLYJCA0114: Failed to load data source class: org.postgresql.Driver"

ERROR [org.jboss.as.controller.management-operation] (Controller Boot Thread) WFLYCTL0013: Operation ("add") failed - address: ([
    ("subsystem" => "datasources"),
    ("data-source" => "databaseName")
]) - Fault description: {
    "WFLYCTL0412: Required services not yet installed:" => ["jboss.jdbc-driver.postgresql"],
    "WFLYCTL0180: Services with missing/unavailable dependencies" => [
        "org.wildfly.data-source.databaseName is missing [jboss.jdbc-driver.postgresql]",
        "jboss.driver-demander.java:jboss/datasources/databaseName is missing [jboss.jdbc-driver.postgresql]"
    ]
}
14:47:22,622 ERROR [org.jboss.as.controller.management-operation] (Controller Boot Thread) WFLYCTL0013: Operation ("add") failed - address: ([
    ("subsystem" => "datasources"),
    ("data-source" => "databaseName")
]) - Fault description: {
    "WFLYCTL0412: Required services that are not yet installed:" => [
        "jboss.jdbc-driver.postgresql",
        "jboss.jdbc-driver.postgresql"
    ],
    "WFLYCTL0180: Services with missing/unavailable dependencies" => [
        "org.wildfly.data-source.databaseName is missing [jboss.jdbc-driver.postgresql]",
        "jboss.driver-demander.java:jboss/datasources/databaseName is missing [jboss.jdbc-driver.postgresql]",
        "org.wildfly.data-source.databaseName is missing [jboss.jdbc-driver.postgresql]"
    ]
}

I have tried some solutions that I have found but no work:( I feel like JBoss can't find \modules\com\liferay\portal\main folder, i don't know what more do... this configuration worked for me in Liferay 7.1 but no in Liferay 7.4

Thanks for reading^-^