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org.xml.sax.SAXParseException: Reference is not allowed in prolog. at at at at at at$PrologDispatcher.dispatch( at at at at at at at at at at at<init>( at com.embarcadero.uml.ui.swing.drawingarea.ADDrawingAreaControl.saveETLDAndETLPFiles( at com.embarcadero.uml.ui.swing.drawingarea.ADDrawingAreaControl.preCommit( at at at at at at at at$ at at at org.openide.util.actions.NodeAction$ at org.openide.util.actions.CallableSystemAction$ActionRunnable.actionPerformed( at org.netbeans.core.ModuleActions.invokeAction( at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke( at sun.reflect.DelegatingMethodAccessorImpl.invoke( at java.lang.reflect.Method.invoke( at org.openide.util.actions.CallableSystemAction.invokeAction( at org.openide.util.actions.CallableSystemAction.access$000( at org.openide.util.actions.CallableSystemAction$ActionRunnable.doRun( at org.openide.util.actions.CallableSystemAction$ at at org.openide.util.RequestProcessor$ at org.openide.util.RequestProcessor$