You need to create a gwt.xml file for each module.
Then you can compile them all with the ANT Task
<target name="gwtc" depends="javac" description="GWT compile to JavaScript"> <java failonerror="true" fork="true" classname="com.google.gwt.dev.Compiler"> <classpath> <pathelement location="src"/> <path refid="project.class.path"/> </classpath> <arg value="${myModuleName}"/> </java> </target>
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