Maven Ear with two war files - maven

Question

I am trying to develop an application which will upon packaging will generate an "ear" file which will contain 2 war files. Folders for those war files are called "hello" and "bye" and are placed on the same level as of the parent pom that contains the info about the ear.
The pom's for hello and bye packages fine when i ran them individually. When i tried packaging this pom it says cannot find poms for both hello and bye.
Here is the content for the parent pom.
<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>MR</groupId>
<artifactId>MREAR</artifactId>
<packaging>ear</packaging>
<version>0.0.1-SNAPSHOT</version>
<dependencies>
<dependency>
<groupId>MR.hello</groupId>
<artifactId>hello</artifactId>
<version>0.0.1-SNAPSHOT</version>
<type>war</type>
</dependency>
<dependency>
<groupId>MR.bye</groupId>
<artifactId>bye</artifactId>
<version>0.0.1-SNAPSHOT</version>
<type>war</type>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-ear-plugin</artifactId>
<version>2.3.2</version>
<configuration>
<modules>
<webModule>
<groupId>MR.hello</groupId>
<artifactId>hello</artifactId>
<version>0.0.1-SNAPSHOT</version>
</webModule>
<webModule>
<groupId>MR.bye</groupId>
<artifactId>bye</artifactId>
<version>0.0.1-SNAPSHOT</version>
</webModule>
</modules>
</configuration>
</plugin>
</plugins>
</build>
</project>