BauSystem/pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>steamwar</groupId>
    <artifactId>BauSystem</artifactId>
    <version>1.0</version>
    <packaging>pom</packaging>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <main.basedir>${project.basedir}</main.basedir>
    </properties>

    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.6.1</version>
                <configuration>
                    <source>8</source>
                    <target>8</target>
                </configuration>
            </plugin>
        </plugins>
    </build>

    <modules>
        <module>BauSystem_12</module>
        <module>BauSystem_15</module>
        <module>BauSystem_Main</module>
        <module>BauSystem_API</module>
    </modules>

    <dependencies>
        <dependency>
            <groupId>steamwar</groupId>
            <artifactId>SpigotCore</artifactId>
            <version>1.0</version>
            <scope>system</scope>
            <systemPath>${main.basedir}/lib/SpigotCore.jar</systemPath>
        </dependency>
    </dependencies>
</project>