# Error when trying to export empty map as png. **URL:** \ **Category:** Technical Support & Bugs\ **Created:** [October 20, 2010, 6:09pm UTC](https://forum.vassalengine.org/t/error-when-trying-to-export-empty-map-as-png/3374 "2010-10-20T18:09:50Z")\ **Posts on this page:** 1\ **Showing post:** 1
**Author:** ![lozgreen](https://forum.vassalengine.org/letter_avatar_proxy/v4/letter/l/ecae2f/32.png) [@lozgreen](https://forum.vassalengine.org/u/lozgreen)\ **Post date:** [October 20, 2010, 6:09pm UTC](https://forum.vassalengine.org/t/error-when-trying-to-export-empty-map-as-png/3374/1 "2010-10-20T18:09:50Z")
I have created a hex map that has cells 132 wide by 153 high. Board width is set to 33660 wide by 68085 (255\*445 cells) When trying to export a blank png file with just the hex grid - I get the following error. How do I get around it? I have just installed the latest Java Run time Cheers Loz Model: none OS: XP Sp 3 CPU: Intel Core 2 Duo 2.40GHz Memory: 4GB Video: GeForce A295Gtx VASSAL: 3.1.14 Java: 1.6.0\_22 Module: New 20 Oct 2010 17:52:28.781 0 – Starting 20 Oct 2010 17:52:28.781 0 – OS Windows XP 20 Oct 2010 17:52:28.781 0 – Java version 1.6.0\_22 20 Oct 2010 17:52:28.781 0 – VASSAL version 3.1.14 20 Oct 2010 17:52:28.859 0 – Manager 20 Oct 2010 17:52:37.812 0 – Loading module file E:\Documents and Settings\Loz\War in the Dessert 20 Oct 2010 17:52:37.812 0 – Loading module Test 20 Oct 2010 17:52:38.046 0 E:\Program Files\Java\jre6\bin\java -Xms256M -Xmx1028M -DVASSAL.id=1 -Duser.home=E:\Documents and Settings\Loz -cp lib\Vengine.jar VASSAL.launch.Player 20 Oct 2010 17:52:41.734 1 – Test version 0.0 20 Oct 2010 17:52:41.734 1 20 Oct 2010 17:52:52.218 1 java.util.concurrent.ExecutionException: java.lang.NegativeArraySizeException at java.util.concurrent.FutureTask$Sync.innerGet(Unknown Source) at java.util.concurrent.FutureTask.get(Unknown Source) at org.jdesktop.swingworker.SwingWorker.get(Unknown Source) at VASSAL.build.module.map.ImageSaver$SnapshotTask.done(ImageSaver.java:413) at org.jdesktop.swingworker.SwingWorker$5.run(Unknown Source) at org.jdesktop.swingworker.SwingWorker$DoSubmitAccumulativeRunnable.run(Unknown Source) at org.jdesktop.swingworker.AccumulativeRunnable.run(Unknown Source) at org.jdesktop.swingworker.SwingWorker$DoSubmitAccumulativeRunnable.actionPerformed(Unknown Source) at javax.swing.Timer.fireActionPerformed(Unknown Source) at javax.swing.Timer$DoPostEvent.run(Unknown Source) at java.awt.event.InvocationEvent.dispatch(Unknown Source) at java.awt.EventQueue.dispatchEvent(Unknown Source) at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source) at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source) at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source) at java.awt.Dialog$1.run(Unknown Source) at java.awt.Dialog$3.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at java.awt.Dialog.show(Unknown Source) at java.awt.Component.show(Unknown Source) at java.awt.Component.setVisible(Unknown Source) at java.awt.Window.setVisible(Unknown Source) at java.awt.Dialog.setVisible(Unknown Source) at VASSAL.build.module.map.ImageSaver.writeMapAsImage(ImageSaver.java:220) at VASSAL.build.module.map.ImageSaver$1.actionPerformed(ImageSaver.java:85) at javax.swing.AbstractButton.fireActionPerformed(Unknown Source) at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source) at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source) at javax.swing.DefaultButtonModel.setPressed(Unknown Source) at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source) at java.awt.AWTEventMulticaster.mouseReleased(Unknown Source) at java.awt.Component.processMouseEvent(Unknown Source) at javax.swing.JComponent.processMouseEvent(Unknown Source) at java.awt.Component.processEvent(Unknown Source) at java.awt.Container.processEvent(Unknown Source) at java.awt.Component.dispatchEventImpl(Unknown Source) at java.awt.Container.dispatchEventImpl(Unknown Source) at java.awt.Component.dispatchEvent(Unknown Source) at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source) at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source) at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source) at java.awt.Container.dispatchEventImpl(Unknown Source) at java.awt.Window.dispatchEventImpl(Unknown Source) at java.awt.Component.dispatchEvent(Unknown Source) at java.awt.EventQueue.dispatchEvent(Unknown Source) at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source) at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source) at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source) at java.awt.EventDispatchThread.pumpEvents(Unknown Source) at java.awt.EventDispatchThread.pumpEvents(Unknown Source) at java.awt.EventDispatchThread.run(Unknown Source) Caused by: java.lang.NegativeArraySizeException at java.awt.image.DataBufferInt.(Unknown Source) at java.awt.image.Raster.createPackedRaster(Unknown Source) at java.awt.image.DirectColorModel.createCompatibleWritableRaster(Unknown Source) at java.awt.image.BufferedImage.(Unknown Source) at VASSAL.build.module.map.ImageSaver$SnapshotTask.doInBackground(ImageSaver.java:362) at VASSAL.build.module.map.ImageSaver$SnapshotTask.doInBackground(ImageSaver.java:260) at org.jdesktop.swingworker.SwingWorker$1.call(Unknown Source) at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source) at java.util.concurrent.FutureTask.run(Unknown Source) at org.jdesktop.swingworker.SwingWorker.run(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source) --- _[View the full topic](https://forum.vassalengine.org/t/error-when-trying-to-export-empty-map-as-png/3374)._