Hi Mark,

I am attempting to add packages on Weka-3-9. Some of the packages install with no error, but the ones that don't all have some "zip" error thwarting installation.
Do you an idea to get around this error?




java.util.zip.ZipException: error in opening zip file
at java.util.zip.ZipFile.open(Native Method)
at java.util.zip.ZipFile.<init>(Unknown Source)
at java.util.zip.ZipFile.<init>(Unknown Source)
at java.util.zip.ZipFile.<init>(Unknown Source)
at weka.core.packageManagement.DefaultPackageManager.getPackageArchiveInfo(DefaultPackageManager.java:354)
at weka.core.packageManagement.DefaultPackageManager.installPackageFromArchive(DefaultPackageManager.java:501)
at weka.core.packageManagement.DefaultPackageManager.installPackageFromURL(DefaultPackageManager.java:769)
at weka.core.packageManagement.DefaultPackageManager.installPackageFromRepository(DefaultPackageManager.java:753)
at weka.core.WekaPackageManager.installPackageFromRepository(WekaPackageManager.java:1938)
at weka.gui.PackageManager$InstallTask.doInBackground(PackageManager.java:1308)
at weka.gui.PackageManager$InstallTask.doInBackground(PackageManager.java:863)
at javax.swing.SwingWorker$1.call(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at javax.swing.SwingWorker.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)