Auto-Weka: class not found

Hello,

I have a problem with Weka 3.8.5 on Windows 10 in combination with Auto-Weka 2.6.3.
I recently updated Auto-Weka with the package manager from 2.6.1 to 2.6.3 and now it is no longer usable.
Auto-Weka doesn't show up as a tab inside the Explorer window and no longer shows up in the list of available classifiers; but it shows up as loaded in the Package Manager.
The Weka log shows this:

3D [dev] 1.6.0-pre12-daily-experimental daily

Checking for new packages...
java.lang.ClassNotFoundException: weka.gui.explorer.AutoWEKAPanel
                java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(Unknown Source)
                java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(Unknown Source)
                java.base/java.lang.ClassLoader.loadClass(Unknown Source)
                java.base/java.lang.Class.forName0(Native Method)
                java.base/java.lang.Class.forName(Unknown Source)
                weka.core.WekaPackageClassLoaderManager.forName(WekaPackageClassLoaderManager.java:198)
                weka.core.WekaPackageClassLoaderManager.forName(WekaPackageClassLoaderManager.java:178)
                weka.gui.explorer.Explorer.<init>(Explorer.java:234)
                weka.gui.GUIChooserApp.showExplorer(GUIChooserApp.java:1351)
                weka.gui.GUIChooserApp$22.actionPerformed(GUIChooserApp.java:1167)
                java.desktop/javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
                java.desktop/javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
                java.desktop/javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
                java.desktop/javax.swing.DefaultButtonModel.setPressed(Unknown Source)
                java.desktop/javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source)
                java.desktop/java.awt.Component.processMouseEvent(Unknown Source)
                java.desktop/javax.swing.JComponent.processMouseEvent(Unknown Source)
                java.desktop/java.awt.Component.processEvent(Unknown Source)
                java.desktop/java.awt.Container.processEvent(Unknown Source)
                java.desktop/java.awt.Component.dispatchEventImpl(Unknown Source)
                java.desktop/java.awt.Container.dispatchEventImpl(Unknown Source)
                java.desktop/java.awt.Component.dispatchEvent(Unknown Source)
                java.desktop/java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
                java.desktop/java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
                java.desktop/java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
                java.desktop/java.awt.Container.dispatchEventImpl(Unknown Source)
                java.desktop/java.awt.Window.dispatchEventImpl(Unknown Source)
                java.desktop/java.awt.Component.dispatchEvent(Unknown Source)
                java.desktop/java.awt.EventQueue.dispatchEventImpl(Unknown Source)
                java.desktop/java.awt.EventQueue$4.run(Unknown Source)
                java.desktop/java.awt.EventQueue$4.run(Unknown Source)
                java.base/java.security.AccessController.doPrivileged(Native Method)
                java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
                java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
                java.desktop/java.awt.EventQueue$5.run(Unknown Source)
                java.desktop/java.awt.EventQueue$5.run(Unknown Source)
                java.base/java.security.AccessController.doPrivileged(Native Method)
                java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
                java.desktop/java.awt.EventQueue.dispatchEvent(Unknown Source)
                java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
                java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
                java.desktop/java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
                java.desktop/java.awt.EventDispatchThread.pumpEvents(Unknown Source)
                java.desktop/java.awt.EventDispatchThread.pumpEvents(Unknown Source)
                java.desktop/java.awt.EventDispatchThread.run(Unknown Source)

                at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(Unknown Source)
                at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(Unknown Source)
                at java.base/java.lang.ClassLoader.loadClass(Unknown Source)
                at java.base/java.lang.Class.forName0(Native Method)
                at java.base/java.lang.Class.forName(Unknown Source)
                at weka.core.WekaPackageClassLoaderManager.forName(WekaPackageClassLoaderManager.java:198)
                at weka.core.WekaPackageClassLoaderManager.forName(WekaPackageClassLoaderManager.java:178)
                at weka.gui.explorer.Explorer.<init>(Explorer.java:234)
                at weka.gui.GUIChooserApp.showExplorer(GUIChooserApp.java:1351)
                at weka.gui.GUIChooserApp$22.actionPerformed(GUIChooserApp.java:1167)
                at java.desktop/javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
                at java.desktop/javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
                at java.desktop/javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
                at java.desktop/javax.swing.DefaultButtonModel.setPressed(Unknown Source)
                at java.desktop/javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source)
                at java.desktop/java.awt.Component.processMouseEvent(Unknown Source)
                at java.desktop/javax.swing.JComponent.processMouseEvent(Unknown Source)
                at java.desktop/java.awt.Component.processEvent(Unknown Source)
                at java.desktop/java.awt.Container.processEvent(Unknown Source)
                at java.desktop/java.awt.Component.dispatchEventImpl(Unknown Source)
                at java.desktop/java.awt.Container.dispatchEventImpl(Unknown Source)
                at java.desktop/java.awt.Component.dispatchEvent(Unknown Source)
                at java.desktop/java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
                at java.desktop/java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
                at java.desktop/java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
                at java.desktop/java.awt.Container.dispatchEventImpl(Unknown Source)
                at java.desktop/java.awt.Window.dispatchEventImpl(Unknown Source)
                at java.desktop/java.awt.Component.dispatchEvent(Unknown Source)
                at java.desktop/java.awt.EventQueue.dispatchEventImpl(Unknown Source)
                at java.desktop/java.awt.EventQueue$4.run(Unknown Source)
                at java.desktop/java.awt.EventQueue$4.run(Unknown Source)
                at java.base/java.security.AccessController.doPrivileged(Native Method)
                at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
                at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
                at java.desktop/java.awt.EventQueue$5.run(Unknown Source)
                at java.desktop/java.awt.EventQueue$5.run(Unknown Source)
                at java.base/java.security.AccessController.doPrivileged(Native Method)
                at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
                at java.desktop/java.awt.EventQueue.dispatchEvent(Unknown Source)
                at java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
                at java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
                at java.desktop/java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
                at java.desktop/java.awt.EventDispatchThread.pumpEvents(Unknown Source)
                at java.desktop/java.awt.EventDispatchThread.pumpEvents(Unknown Source)
                at java.desktop/java.awt.EventDispatchThread.run(Unknown Source)
Library "scipy" is not available
Library "sklearn" is not available
Library "matplotlib" is not available
Library "numpy" is not available
Library "pandas" is not available, minimum version = 0.7.0


I reinstalled Weka 3.8.5 for Windows but with no improvement.

It seems to not find a class of autoweka. So, either it looks in the wrong place (path problems or something similar) or the class doesn't exist in the package.


Thanks for any help.
Jens

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