cinnamon mint not opening

2020-02-07 17:24:50,364 [0-main] INFO VASSAL.launch.StartUp - Starting
2020-02-07 17:24:50,366 [0-main] INFO VASSAL.launch.StartUp - OS Linux 4.15.0-76-generic
2020-02-07 17:24:50,366 [0-main] INFO VASSAL.launch.StartUp - Java version 11.0.6
2020-02-07 17:24:50,366 [0-main] INFO VASSAL.launch.StartUp - VASSAL version 3.2.17
2020-02-07 17:24:50,767 [0-AWT-EventQueue-0] INFO VASSAL.launch.ModuleManager - Manager
2020-02-07 17:27:17,576 [0-SwingWorker-pool-312025016-thread-1] INFO VASSAL.launch.AbstractLaunchAction - Loading module file /home/mint19dhb/Downloads/Monopoly_3.0.vmod
2020-02-07 17:27:17,770 [0-SwingWorker-pool-312025016-thread-1] INFO VASSAL.tools.io.ProcessLauncher - launching /usr/lib/jvm/java-11-openjdk-amd64/bin/java -classpath /home/mint19dhb/Downloads/VASSAL-3.2.17/lib/Vengine.jar -Xmx169M -DVASSAL.id=2 -Duser.home=/home/mint19dhb -DVASSAL.port=33717 VASSAL.tools.image.tilecache.ZipFileImageTiler /home/mint19dhb/Downloads/Monopoly_3.0.vmod /home/mint19dhb/.VASSAL/tiles/cf19b483ac41e550d5dd828bbd893f900f9236c2 256 256
2020-02-07 17:27:18,668 [2-main] INFO VASSAL.tools.image.tilecache.ZipFileImageTiler - Starting
2020-02-07 17:27:18,747 [0-ProcessLauncher-2] WARN VASSAL.tools.logging.LoggedOutputStream - WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by VASSAL.tools.image.ImageIOImageLoader (file:/home/mint19dhb/Downloads/VASSAL-3.2.17/lib/Vengine.jar) to field sun.java2d.cmm.ProfileDeferralMgr.deferring
WARNING: Please consider reporting this to the maintainers of VASSAL.tools.image.ImageIOImageLoader
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
2020-02-07 17:27:18,768 [2-main] INFO VASSAL.tools.image.tilecache.FileArchiveImageTiler - Tiling images/1.png
2020-02-07 17:27:18,939 [2-main] INFO VASSAL.tools.image.tilecache.FileArchiveImageTiler - Tiling images/10.png
2020-02-07 17:27:18,990 [2-main] INFO VASSAL.tools.image.tilecache.FileArchiveImageTiler - Tiling images/100.png
2020-02-07 17:27:19,040 [2-main] INFO VASSAL.tools.image.tilecache.FileArchiveImageTiler - Tiling images/20.png
2020-02-07 17:27:19,081 [2-main] INFO VASSAL.tools.image.tilecache.FileArchiveImageTiler - Tiling images/5.png
2020-02-07 17:27:19,114 [2-main] INFO VASSAL.tools.image.tilecache.FileArchiveImageTiler - Tiling images/50.png
2020-02-07 17:27:19,140 [2-main] INFO VASSAL.tools.image.tilecache.FileArchiveImageTiler - Tiling images/500.png
2020-02-07 17:27:19,159 [2-main] INFO VASSAL.tools.image.tilecache.FileArchiveImageTiler - Tiling images/board.png
2020-02-07 17:27:19,959 [2-main] INFO VASSAL.tools.image.tilecache.FileArchiveImageTiler - Tiling images/one.png
2020-02-07 17:27:19,983 [2-main] INFO VASSAL.tools.image.tilecache.FileArchiveImageTiler - Tiling images/splash.gif
2020-02-07 17:27:20,048 [2-main] INFO VASSAL.tools.image.tilecache.ZipFileImageTiler - Exiting
2020-02-07 17:27:20,075 [0-SwingWorker-pool-312025016-thread-1] INFO VASSAL.launch.AbstractLaunchAction - Loading module Monopoly
2020-02-07 17:27:20,076 [0-SwingWorker-pool-312025016-thread-1] INFO VASSAL.tools.io.ProcessLauncher - launching /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Xms256M -Xmx512M -DVASSAL.id=1 -DVASSAL.port=44339 -Duser.home=/home/mint19dhb -Duser.dir=/home/mint19dhb/Downloads/VASSAL-3.2.17 -cp /home/mint19dhb/Downloads/VASSAL-3.2.17/lib/Vengine.jar VASSAL.launch.Player --load – /home/mint19dhb/Downloads/Monopoly_3.0.vmod
2020-02-07 17:27:21,036 [1-main] INFO VASSAL.launch.StartUp - Starting
2020-02-07 17:27:21,041 [1-main] INFO VASSAL.launch.StartUp - OS Linux 4.15.0-76-generic
2020-02-07 17:27:21,041 [1-main] INFO VASSAL.launch.StartUp - Java version 11.0.6
2020-02-07 17:27:21,041 [1-main] INFO VASSAL.launch.StartUp - VASSAL version 3.2.17
2020-02-07 17:27:21,041 [1-main] INFO VASSAL.launch.Launcher - Player
2020-02-07 17:27:21,612 [0-ProcessLauncher-2] WARN VASSAL.tools.logging.LoggedOutputStream - WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by VASSAL.tools.image.ImageIOImageLoader (file:/home/mint19dhb/Downloads/VASSAL-3.2.17/lib/Vengine.jar) to field sun.java2d.cmm.ProfileDeferralMgr.deferring
WARNING: Please consider reporting this to the maintainers of VASSAL.tools.image.ImageIOImageLoader
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
2020-02-07 17:27:21,918 [1-AWT-EventQueue-0] ERROR VASSAL.tools.ErrorDialog -
java.lang.NoClassDefFoundError: org/w3c/dom/ls/DocumentLS
at java.base/java.lang.ClassLoader.defineClass1(Native Method) ~[na:na]
at java.base/java.lang.ClassLoader.defineClass(ClassLoader.java:1016) ~[na:na]
at java.base/java.security.SecureClassLoader.defineClass(SecureClassLoader.java:174) ~[na:na]
at java.base/jdk.internal.loader.BuiltinClassLoader.defineClass(BuiltinClassLoader.java:800) ~[na:na]
at java.base/jdk.internal.loader.BuiltinClassLoader.findClassOnClassPathOrNull(BuiltinClassLoader.java:698) ~[na:na]
at java.base/jdk.internal.loader.BuiltinClassLoader.loadClassOrNull(BuiltinClassLoader.java:621) ~[na:na]
at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:579) ~[na:na]
at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178) ~[na:na]
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521) ~[na:na]
at java.base/java.lang.ClassLoader.defineClass1(Native Method) ~[na:na]
at java.base/java.lang.ClassLoader.defineClass(ClassLoader.java:1016) ~[na:na]
at java.base/java.security.SecureClassLoader.defineClass(SecureClassLoader.java:174) ~[na:na]
at java.base/jdk.internal.loader.BuiltinClassLoader.defineClass(BuiltinClassLoader.java:800) ~[na:na]
at java.base/jdk.internal.loader.BuiltinClassLoader.findClassOnClassPathOrNull(BuiltinClassLoader.java:698) ~[na:na]
at java.base/jdk.internal.loader.BuiltinClassLoader.loadClassOrNull(BuiltinClassLoader.java:621) ~[na:na]
at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:579) ~[na:na]
at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178) ~[na:na]
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521) ~[na:na]
at org.apache.xerces.util.ObjectFactory.findProviderClass(Unknown Source) ~[xercesImpl.jar:na]
at org.apache.xerces.parsers.AbstractDOMParser.setDocumentClassName(Unknown Source) ~[xercesImpl.jar:na]
at org.apache.xerces.parsers.AbstractDOMParser.reset(Unknown Source) ~[xercesImpl.jar:na]
at org.apache.xerces.parsers.XMLParser.parse(Unknown Source) ~[xercesImpl.jar:na]
at org.apache.xerces.parsers.DOMParser.parse(Unknown Source) ~[xercesImpl.jar:na]
at org.apache.xerces.jaxp.DocumentBuilderImpl.parse(Unknown Source) ~[xercesImpl.jar:na]
at java.xml/javax.xml.parsers.DocumentBuilder.parse(DocumentBuilder.java:122) ~[na:na]
at VASSAL.build.Builder.createDocument(Builder.java:160) ~[Vengine.jar:na]
at VASSAL.launch.BasicModule.build(BasicModule.java:110) ~[Vengine.jar:na]
at VASSAL.build.GameModule.init(GameModule.java:855) ~[Vengine.jar:na]
at VASSAL.launch.Player.launch(Player.java:83) ~[Vengine.jar:na]
at VASSAL.launch.Launcher$1.run(Launcher.java:149) ~[Vengine.jar:na]
at java.desktop/java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:313) ~[na:na]
at java.desktop/java.awt.EventQueue.dispatchEventImpl(EventQueue.java:770) ~[na:na]
at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:721) ~[na:na]
at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:715) ~[na:na]
at java.base/java.security.AccessController.doPrivileged(Native Method) ~[na:na]
at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:85) ~[na:na]
at java.desktop/java.awt.EventQueue.dispatchEvent(EventQueue.java:740) ~[na:na]
at java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:203) ~[na:na]
at java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:124) ~[na:na]
at java.desktop/java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:113) ~[na:na]
at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:109) ~[na:na]
at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101) ~[na:na]
at java.desktop/java.awt.EventDispatchThread.run(EventDispatchThread.java:90) ~[na:na]
Caused by: java.lang.ClassNotFoundException: org.w3c.dom.ls.DocumentLS
at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:581) ~[na:na]
at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178) ~[na:na]
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521) ~[na:na]
… 43 common frames omitted
2020-02-07 17:29:31,802 [0-AWT-EventQueue-0] INFO VASSAL.launch.ModuleManagerWindow - Exiting
2020-02-07 17:29:32,136 [1-IPC receiver for 1055096410] ERROR VASSAL.tools.ipc.IPCMessageReceiver -
java.net.SocketException: Connection reset
at java.base/java.net.SocketInputStream.read(SocketInputStream.java:186) ~[na:na]
at java.base/java.net.SocketInputStream.read(SocketInputStream.java:140) ~[na:na]
at java.base/java.net.SocketInputStream.read(SocketInputStream.java:200) ~[na:na]
at java.base/java.io.ObjectInputStream$PeekInputStream.peek(ObjectInputStream.java:2778) ~[na:na]
at java.base/java.io.ObjectInputStream$BlockDataInputStream.peek(ObjectInputStream.java:3105) ~[na:na]
at java.base/java.io.ObjectInputStream$BlockDataInputStream.peekByte(ObjectInputStream.java:3115) ~[na:na]
at java.base/java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1597) ~[na:na]
at java.base/java.io.ObjectInputStream.readObject(ObjectInputStream.java:464) ~[na:na]
at java.base/java.io.ObjectInputStream.readObject(ObjectInputStream.java:422) ~[na:na]
at VASSAL.tools.ipc.IPCMessageReceiver.run(IPCMessageReceiver.java:34) ~[Vengine.jar:na]
at java.base/java.lang.Thread.run(Thread.java:834) ~[na:na]
2020-02-07 17:31:12,396 [1-AWT-EventQueue-0] WARN VASSAL.tools.logging.LoggedOutputStream - java.util.concurrent.ExecutionException: java.io.IOException
2020-02-07 17:31:12,397 [1-AWT-EventQueue-0] WARN VASSAL.tools.logging.LoggedOutputStream - at java.base/java.util.concurrent.FutureTask.report(FutureTask.java:122)
2020-02-07 17:31:12,397 [1-AWT-EventQueue-0] WARN VASSAL.tools.logging.LoggedOutputStream - at java.base/java.util.concurrent.FutureTask.get(FutureTask.java:205)
2020-02-07 17:31:12,397 [1-AWT-EventQueue-0] WARN VASSAL.tools.logging.LoggedOutputStream - at org.jdesktop.swingworker.SwingWorker.get(Unknown Source)
2020-02-07 17:31:12,398 [1-AWT-EventQueue-0] WARN VASSAL.tools.logging.LoggedOutputStream - at VASSAL.tools.BugDialog$SendRequest.done(BugDialog.java:564)
2020-02-07 17:31:12,398 [1-AWT-EventQueue-0] WARN VASSAL.tools.logging.LoggedOutputStream - at org.jdesktop.swingworker.SwingWorker$5.run(Unknown Source)
2020-02-07 17:31:12,398 [1-AWT-EventQueue-0] WARN VASSAL.tools.logging.LoggedOutputStream - at org.jdesktop.swingworker.SwingWorker$DoSubmitAccumulativeRunnable.run(Unknown Source)
2020-02-07 17:31:12,398 [1-AWT-EventQueue-0] WARN VASSAL.tools.logging.LoggedOutputStream - at org.jdesktop.swingworker.AccumulativeRunnable.run(Unknown Source)
2020-02-07 17:31:12,398 [1-AWT-EventQueue-0] WARN VASSAL.tools.logging.LoggedOutputStream - at org.jdesktop.swingworker.SwingWorker$DoSubmitAccumulativeRunnable.actionPerformed(Unknown Source)
2020-02-07 17:31:12,399 [1-AWT-EventQueue-0] WARN VASSAL.tools.logging.LoggedOutputStream - at java.desktop/javax.swing.Timer.fireActionPerformed(Timer.java:317)
2020-02-07 17:31:12,399 [1-AWT-EventQueue-0] WARN VASSAL.tools.logging.LoggedOutputStream - at java.desktop/javax.swing.Timer$DoPostEvent.run(Timer.java:249)
2020-02-07 17:31:12,399 [1-AWT-EventQueue-0] WARN VASSAL.tools.logging.LoggedOutputStream - at java.desktop/java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:313)
2020-02-07 17:31:12,399 [1-AWT-EventQueue-0] WARN VASSAL.tools.logging.LoggedOutputStream - at java.desktop/java.awt.EventQueue.dispatchEventImpl(EventQueue.java:770)
2020-02-07 17:31:12,399 [1-AWT-EventQueue-0] WARN VASSAL.tools.logging.LoggedOutputStream - at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:721)
2020-02-07 17:31:12,400 [1-AWT-EventQueue-0] WARN VASSAL.tools.logging.LoggedOutputStream - at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:715)
2020-02-07 17:31:12,400 [1-AWT-EventQueue-0] WARN VASSAL.tools.logging.LoggedOutputStream - at java.base/java.security.AccessController.doPrivileged(Native Method)
2020-02-07 17:31:12,400 [1-AWT-EventQueue-0] WARN VASSAL.tools.logging.LoggedOutputStream - at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:85)
2020-02-07 17:31:12,400 [1-AWT-EventQueue-0] WARN VASSAL.tools.logging.LoggedOutputStream - at java.desktop/java.awt.EventQueue.dispatchEvent(EventQueue.java:740)
2020-02-07 17:31:12,400 [1-AWT-EventQueue-0] WARN VASSAL.tools.logging.LoggedOutputStream - at java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:203)
2020-02-07 17:31:12,401 [1-AWT-EventQueue-0] WARN VASSAL.tools.logging.LoggedOutputStream - at java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:124)
2020-02-07 17:31:12,401 [1-AWT-EventQueue-0] WARN VASSAL.tools.logging.LoggedOutputStream - at java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:117)
2020-02-07 17:31:12,401 [1-AWT-EventQueue-0] WARN VASSAL.tools.logging.LoggedOutputStream - at java.desktop/java.awt.WaitDispatchSupport$2.run(WaitDispatchSupport.java:190)
2020-02-07 17:31:12,401 [1-AWT-EventQueue-0] WARN VASSAL.tools.logging.LoggedOutputStream - at java.desktop/java.awt.WaitDispatchSupport$4.run(WaitDispatchSupport.java:235)
2020-02-07 17:31:12,401 [1-AWT-EventQueue-0] WARN VASSAL.tools.logging.LoggedOutputStream - at java.desktop/java.awt.WaitDispatchSupport$4.run(WaitDispatchSupport.java:233)
2020-02-07 17:31:12,401 [1-AWT-EventQueue-0] WARN VASSAL.tools.logging.LoggedOutputStream - at java.base/java.security.AccessController.doPrivileged(Native Method)
2020-02-07 17:31:12,402 [1-AWT-EventQueue-0] WARN VASSAL.tools.logging.LoggedOutputStream - at java.desktop/java.awt.WaitDispatchSupport.enter(WaitDispatchSupport.java:233)
2020-02-07 17:31:12,402 [1-AWT-EventQueue-0] WARN VASSAL.tools.logging.LoggedOutputStream - at java.desktop/java.awt.Dialog.show(Dialog.java:1070)
2020-02-07 17:31:12,402 [1-AWT-EventQueue-0] WARN VASSAL.tools.logging.LoggedOutputStream - at java.desktop/java.awt.Component.show(Component.java:1716)
2020-02-07 17:31:12,402 [1-AWT-EventQueue-0] WARN VASSAL.tools.logging.LoggedOutputStream - at java.desktop/java.awt.Component.setVisible(Component.java:1663)
2020-02-07 17:31:12,402 [1-AWT-EventQueue-0] WARN VASSAL.tools.logging.LoggedOutputStream - at java.desktop/java.awt.Window.setVisible(Window.java:1031)
2020-02-07 17:31:12,402 [1-AWT-EventQueue-0] WARN VASSAL.tools.logging.LoggedOutputStream - at java.desktop/java.awt.Dialog.setVisible(Dialog.java:1005)
2020-02-07 17:31:12,403 [1-AWT-EventQueue-0] WARN VASSAL.tools.logging.LoggedOutputStream - at VASSAL.tools.BugDialog.setVisible(BugDialog.java:441)
2020-02-07 17:31:12,403 [1-AWT-EventQueue-0] WARN VASSAL.tools.logging.LoggedOutputStream - at VASSAL.tools.ErrorDialog$1.run(ErrorDialog.java:94)
2020-02-07 17:31:12,403 [1-AWT-EventQueue-0] WARN VASSAL.tools.logging.LoggedOutputStream - at java.desktop/java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:313)
2020-02-07 17:31:12,403 [1-AWT-EventQueue-0] WARN VASSAL.tools.logging.LoggedOutputStream - at java.desktop/java.awt.EventQueue.dispatchEventImpl(EventQueue.java:770)
2020-02-07 17:31:12,403 [1-AWT-EventQueue-0] WARN VASSAL.tools.logging.LoggedOutputStream - at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:721)
2020-02-07 17:31:12,403 [1-AWT-EventQueue-0] WARN VASSAL.tools.logging.LoggedOutputStream - at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:715)
2020-02-07 17:31:12,404 [1-AWT-EventQueue-0] WARN VASSAL.tools.logging.LoggedOutputStream - at java.base/java.security.AccessController.doPrivileged(Native Method)
2020-02-07 17:31:12,404 [1-AWT-EventQueue-0] WARN VASSAL.tools.logging.LoggedOutputStream - at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:85)
2020-02-07 17:31:12,404 [1-AWT-EventQueue-0] WARN VASSAL.tools.logging.LoggedOutputStream - at java.desktop/java.awt.EventQueue.dispatchEvent(EventQueue.java:740)
2020-02-07 17:31:12,404 [1-AWT-EventQueue-0] WARN VASSAL.tools.logging.LoggedOutputStream - at java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:203)
2020-02-07 17:31:12,404 [1-AWT-EventQueue-0] WARN VASSAL.tools.logging.LoggedOutputStream - at java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:124)
2020-02-07 17:31:12,405 [1-AWT-EventQueue-0] WARN VASSAL.tools.logging.LoggedOutputStream - at java.desktop/java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:113)
2020-02-07 17:31:12,405 [1-AWT-EventQueue-0] WARN VASSAL.tools.logging.LoggedOutputStream - at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:109)
2020-02-07 17:31:12,405 [1-AWT-EventQueue-0] WARN VASSAL.tools.logging.LoggedOutputStream - at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
2020-02-07 17:31:12,405 [1-AWT-EventQueue-0] WARN VASSAL.tools.logging.LoggedOutputStream - at java.desktop/java.awt.EventDispatchThread.run(EventDispatchThread.java:90)
2020-02-07 17:31:12,406 [1-AWT-EventQueue-0] WARN VASSAL.tools.logging.LoggedOutputStream - Caused by: java.io.IOException
2020-02-07 17:31:12,406 [1-AWT-EventQueue-0] WARN VASSAL.tools.logging.LoggedOutputStream - at VASSAL.tools.BugUtils.sendBugReport(BugUtils.java:51)
2020-02-07 17:31:12,406 [1-AWT-EventQueue-0] WARN VASSAL.tools.logging.LoggedOutputStream - at VASSAL.tools.BugDialog$SendRequest.doInBackground(BugDialog.java:550)
2020-02-07 17:31:12,406 [1-AWT-EventQueue-0] WARN VASSAL.tools.logging.LoggedOutputStream - at VASSAL.tools.BugDialog$SendRequest.doInBackground(BugDialog.java:532)
2020-02-07 17:31:12,406 [1-AWT-EventQueue-0] WARN VASSAL.tools.logging.LoggedOutputStream - at org.jdesktop.swingworker.SwingWorker$1.call(Unknown Source)
2020-02-07 17:31:12,406 [1-AWT-EventQueue-0] WARN VASSAL.tools.logging.LoggedOutputStream - at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
2020-02-07 17:31:12,407 [1-AWT-EventQueue-0] WARN VASSAL.tools.logging.LoggedOutputStream - at org.jdesktop.swingworker.SwingWorker.run(Unknown Source)
2020-02-07 17:31:12,407 [1-AWT-EventQueue-0] WARN VASSAL.tools.logging.LoggedOutputStream - at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
2020-02-07 17:31:12,407 [1-AWT-EventQueue-0] WARN VASSAL.tools.logging.LoggedOutputStream - at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
2020-02-07 17:31:12,407 [1-AWT-EventQueue-0] WARN VASSAL.tools.logging.LoggedOutputStream - at java.base/java.lang.Thread.run(Thread.java:834)
2020-02-07 17:31:12,407 [1-AWT-EventQueue-0] WARN VASSAL.tools.logging.LoggedOutputStream - Caused by: java.lang.NumberFormatException: For input string: “”
2020-02-07 17:31:12,408 [1-AWT-EventQueue-0] WARN VASSAL.tools.logging.LoggedOutputStream - at java.base/java.lang.NumberFormatException.forInputString(NumberFormatException.java:65)
2020-02-07 17:31:12,408 [1-AWT-EventQueue-0] WARN VASSAL.tools.logging.LoggedOutputStream - at java.base/java.lang.Integer.parseInt(Integer.java:662)
2020-02-07 17:31:12,408 [1-AWT-EventQueue-0] WARN VASSAL.tools.logging.LoggedOutputStream - at java.base/java.lang.Integer.parseInt(Integer.java:770)
2020-02-07 17:31:12,408 [1-AWT-EventQueue-0] WARN VASSAL.tools.logging.LoggedOutputStream - at VASSAL.tools.BugUtils.sendBugReport(BugUtils.java:46)
2020-02-07 17:31:12,408 [1-AWT-EventQueue-0] WARN VASSAL.tools.logging.LoggedOutputStream - … 8 more

You’re using Java 11, which is not supported. VASSAL only works with up to Java 8 at present, until the next release comes out.

Thus spake dgkhill:

4.15.0-76-generic
2020-02-07 17:24:50,366 [0-main] INFO VASSAL.launch.StartUp - Java
version 11.0.6
2020-02-07 17:24:50,366 [0-main] INFO VASSAL.launch.StartUp - VASSAL
version 3.2.17

You’re using Java 11. VASSAL 3.2.17 isn’t compatible with anything later
than Java 8. Use Java 8 instead.

VASSAL 3.3.0 will be compatible with Java 9 and later, but is not ready
for release yet.


J.