To package an ABL WebApp ANT project in Release 13, update the existing build.xml file with the following pathelement location attributes:
<pathelement location="${dlc.java.dir}/ant-ablwebapp.jar" />
 
				<!-- ABLWebApp Dependencies -->
<pathelement location="${dlc.java.dir}/ant-libs/ablwebapp.jar" />
<pathelement location="${dlc.java.dir}/ant-libs/ablwebapp-dependencies.jar" />
 
				<!-- CodeModel Dependencies -->
<pathelement location="${dlc.java.dir}/ant-libs/codemodel-dependencies.jar" />
 
				<!-- AST and its Dependencies -->
<pathelement location="${dlc.java.dir}/ant-libs/ast.jar" />
<pathelement location="${dlc.java.dir}/ant-libs/ast-dependencies.jar" />
 
				<!-- Additional deps -->
<pathelement location="${dlc.java.dir}/ant-libs/commons-lang3-3.18.0.jar" />
<pathelement location="${dlc.java.dir}/ant-libs/slf4j-api.jar" />
<pathelement location="${dlc.java.dir}/ant-libs/velocity-engine-core-2.4.1.jar" />
<pathelement location="${dlc.java.dir}/ant-libs/1padapters-restExpose.jar" />
<pathelement location="${dlc.java.dir}/1padapters-idl.jar" />
<pathelement location="${dlc.java.dir}/1padapters-util.jar" />
<pathelement location="${dlc.java.dir}/ext/jettison-1.5.4.jar" />
<pathelement location="${dlc.java.dir}/ext/commons-logging-1.3.5.jar" />
<pathelement location="${dlc.java.dir}/ext/xmlschema-core-2.3.1.jar" />

For more details, see Package an ABL WebApp ANT project in Progress Developer Studio for OpenEdge Online Help.