Are these errors in the source code normal?

So I forked their repository and made a git clone but when I open the project my IDE(IntelliJ) says that there are errors in the code.

An example of this are some of the pom files

<parent>
        <groupId>org.liquibase</groupId>
        <artifactId>liquibase-base</artifactId>
        <version>${liquibase.version}</version>
        <relativePath>base.pom.xml</relativePath>
</parent>

IntelliJ says that properties in parent are prohibited

Another example is the following one where the error “cannot resolve symbol liquibase-pro” is prompeted

<profiles>
        <profile>
            <id>liquibase-pro</id>
            <activation>
                <file>
                    <exists>../liquibase-pro/pom.xml</exists>
                </file>
            </activation>
            <modules>
                <module>../liquibase-pro</module>
            </modules>
        </profile>
    </profiles>

Is it normal?

@fabiopires10 ,

IntelliJ is throwing up issues, but could you try using commandline? that way we can diagnose if this is a configuration issue with your IDE vs an issue with the liquibase github project.