Maven – How to build a multi-module maven project in jenkins

I have a projects structure as follows:

ProjectParent
 - pom.xml
 ProjectApp
   -pom.xml
 ProjectAPI
   -pom.xml
 ProjectModels
   -pom.xml
 ProjectServices
   -pom.xml
 Etc..

ProjectModels/ProjectsServices are dependencies within ProjectAPI/ProjectApp.

1. Should I create separate jobs within Jenkins to build each module separately?

2. I created a job for ProjectAPP but get the following error below (Have set goals and actions to "clean install":

[INFO] Scanning for projects…
[INFO]
[INFO] ————————————————————————
[INFO] Building myproject-app 0.0.1-SNAPSHOT
[INFO] ————————————————————————

Downloading: http://maven.springframework.org/snapshot/com/myproject/myproject-common-config/0.0.1-SNAPSHOT/myproject-common-config-0.0.1-SNAPSHOT.pom
[WARNING] The POM for com.myproject:myproject-common-config:jar:0.0.1-SNAPSHOT is missing,

no dependency information available
Downloading: http://maven.springframework.org/snapshot/com/myproject/myproject-entities/0.0.1-SNAPSHOT/myproject-entities-0.0.1-SNAPSHOT.pom
[WARNING] The POM for com.myproject:myproject-entities:jar:0.0.1-SNAPSHOT is missing, no
dependency information available
Downloading: http://maven.springframework.org/snapshot/com/myproject/myproject-services/0.0.1-SNAPSHOT/myproject-services-0.0.1-SNAPSHOT.pom
[WARNING] The POM for com.myproject:myproject-services:jar:0.0.1-SNAPSHOT is missing, no
dependency information available
Downloading: http://maven.springframework.org/snapshot/com/myproject/myproject-persistence/0.0.1-SNAPSHOT/myproject-persistence-0.0.1-SNAPSHOT.pom
[WARNING] The POM for com.myproject:myproject-persistence:jar:0.0.1-SNAPSHOT is missing, no
dependency information available
Downloading: http://maven.springframework.org/snapshot/com/myproject/myproject-common-config/0.0.1-SNAPSHOT/myproject-common-config-0.0.1-SNAPSHOT.jar
……
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal on project myproject-app: Could not resolve dependencies
for project com.myproject:myproject-app:war:0.0.1-SNAPSHOT: The
following artifacts could not be resolved:
com.myproject:myproject-common-config:jar:0.0.1-SNAPSHOT,
com.myproject:myproject-entities:jar:0.0.1-SNAPSHOT,
com.myproject:myproject-services:jar:0.0.1-SNAPSHOT,
com.myproject:myproject-persistence:jar:0.0.1-SNAPSHOT: Could not find
artifact com.myproject:myproject-common-config:jar:0.0.1-SNAPSHOT in
org.springframework.maven.snapshot
(http://maven.springframework.org/snapshot)

ProjectParent Pom

<?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>com.myproject</groupId>
    <artifactId>myproject-parent</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>pom</packaging>

    <modules>
        <module>myproject-entities</module>
        <module>myproject-services</module>
        <module>myproject-persistence</module>
        <module>myproject-app</module>
        <module>myproject-merchant</module>
        <module>myproject-common-config</module>
        <module>myproject-api</module>
    </modules>

    <dependencyManagement>
        <dependencies>
            ...
        </dependencies>
    </dependencyManagement>

    <repositories>      
        ...
    </repositories>

    <build>
        ...
    </build>

    <properties>
        ...

        <myproject-entities-version>0.0.1-SNAPSHOT</myproject-entities-version>
        <myproject-services-version>0.0.1-SNAPSHOT</myproject-services-version>
        <myproject-persistence-version>0.0.1-SNAPSHOT</myproject-persistence-version>
    </properties>

</project>

ProjectApp Pom

<?xml version="1.0"?>
<project
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
    xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>com.myproject</groupId>
        <artifactId>myproject-parent</artifactId>
        <version>0.0.1-SNAPSHOT</version>
    </parent>

    <artifactId>myproject-app</artifactId>
    <packaging>war</packaging>

    <version>0.0.1-SNAPSHOT</version>
    <name>myproject-app</name>
    <url>http://maven.apache.org</url>


    <dependencies>

        ...

        <dependency>
            <groupId>com.myproject</groupId>
            <artifactId>myproject-common-config</artifactId>
            <version>${myproject-common-config}</version>
        </dependency>

        <dependency>
            <groupId>com.myproject</groupId>
            <artifactId>myproject-entities</artifactId>
            <version>${myproject-entities-version}</version>
        </dependency>

        <dependency>
            <groupId>com.myproject</groupId>
            <artifactId>myproject-services</artifactId>
            <version>${myproject-services-version}</version>
        </dependency>

        <dependency>
            <groupId>com.myproject</groupId>
            <artifactId>myproject-persistence</artifactId>
            <version>${myproject-persistence-version}</version>
        </dependency>

    </dependencies>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>

        <myproject-common-config>0.0.1-SNAPSHOT</myproject-common-config>
        <myproject-entities-version>0.0.1-SNAPSHOT</myproject-entities-version>
        <myproject-services-version>0.0.1-SNAPSHOT</myproject-services-version>
        <myproject-persistence-version>0.0.1-SNAPSHOT</myproject-persistence-version>
    </properties>

</project>

Am I using the wrong goals? Do I need to chain a number of commands? i.e. build other modules first?

I'm using Maven 3.

NOTE: I changed the target to "clean install" against the ParentProject Pom and everything builds correctly.

Thanks