trying to use buckminster ant builder to generate ecore model upon Eclipse build

org.fortiss.af3.project/trunk/.classpath

 <?xml version="1.0" encoding="UTF-8"?>
 <classpath>
 	<classpathentry kind="src" path="src"/>
+	<classpathentry kind="src" path="generated-src"/>
 	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.6"/>
 	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
 	<classpathentry kind="output" path="build"/>

org.fortiss.af3.project/trunk/.project

@@ -22,11 +22,11 @@
 				</dictionary>
 				<dictionary>
 					<key>derived.resource</key>
-					<value>generated-src</value>
+					<value>generated-src/org</value>
 				</dictionary>
 				<dictionary>
 					<key>refresh.resource</key>
-					<value>generated-src/</value>
+					<value>generated-src/org</value>
 				</dictionary>
 				<dictionary>
 					<key>override.basedir</key>