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Tim, I believe we have corresponded about this topic before. Did you try our previous suggestion? Please delete the UNAVCO plugin (Tools > Plugin Manager). If you still need to the UNACVO plugin, please reinstall it with C:\Program Files (x86)\IDV_5.0u1\runIDV.bat -installplugin http://www.unavco.org/software/visualization/idv/unavcoidv.jar Let us know if you run into trouble. Best, Unidata IDV Support > Full Name: Tim Paysen > Email Address: address@hidden > Organization: Self > Package Version: 5.0u2 build date:2014-11-12 20:09 UTC > Operating System: Windows 7 > Hardware: Java: home: C:\Program Files (x86)\IDV_5.0u2\jre version: 1.7.0_51 > j3d:1.6.0-pre9-daily-experimental daily > Description of problem: > > Opening jars > error in opening zip file > > C:\Program Files (x86)\IDV_5.0u2>jre\bin\java -Xmx1229m -XX:PermSize=128m > -XX:MaxPermSize=128m > DisableExplicitGC -Didv.enableStereo=false -jar idv.jar > ERROR: Opening jars > error in opening zip file > 3D [dev] 1.6.0-pre9-daily-experimental daily > > ERROR: Opening jars > error in opening zip file > ERROR: Opening jars > error in opening zip file > ERROR: Opening jars > error in opening zip file > 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.jar.JarFile.<init>(Unknown Source) > at java.util.jar.JarFile.<init>(Unknown Source) > at ucar.unidata.util.PluginClassLoader.<init>(PluginClassLoader.java:102) > at ucar.unidata.idv.PluginManager$3.<init>(PluginManager.java:1737) > at ucar.unidata.idv.PluginManager.loadJar(PluginManager.java:1736) > at ucar.unidata.idv.PluginManager.handlePlugin(PluginManager.java:1508) > at ucar.unidata.idv.PluginManager.loadPlugins(PluginManager.java:1460) > at ucar.unidata.idv.PluginManager.<init>(PluginManager.java:246) > at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) > at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source) > at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source) > at java.lang.reflect.Constructor.newInstance(Unknown Source) > at ucar.unidata.idv.IdvBase.makeManager(IdvBase.java:255) > at ucar.unidata.idv.IdvBase.doMakePluginManager(IdvBase.java:1097) > at ucar.unidata.idv.IdvBase.getPluginManager(IdvBase.java:1109) > at > ucar.unidata.idv.ui.IdvUIManager.showSupportFormInThread(IdvUIManager.java:6132) > at ucar.unidata.idv.ui.IdvUIManager.access$800(IdvUIManager.java:166) > at ucar.unidata.idv.ui.IdvUIManager$33.run(IdvUIManager.java:6063) > at ucar.unidata.util.Misc$3.run(Misc.java:1243) > > ****************** > Stack trace: > 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.jar.JarFile.<init>(Unknown Source) > at java.util.jar.JarFile.<init>(Unknown Source) > at ucar.unidata.util.PluginClassLoader.<init>(PluginClassLoader.java:102) > at ucar.unidata.idv.PluginManager$3.<init>(PluginManager.java:1737) > at ucar.unidata.idv.PluginManager.loadJar(PluginManager.java:1736) > at ucar.unidata.idv.PluginManager.handlePlugin(PluginManager.java:1508) > at ucar.unidata.idv.PluginManager.loadPlugins(PluginManager.java:1460) > at ucar.unidata.idv.PluginManager.<init>(PluginManager.java:246) > at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) > at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source) > at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source) > at java.lang.reflect.Constructor.newInstance(Unknown Source) > at ucar.unidata.idv.IdvBase.makeManager(IdvBase.java:255) > at ucar.unidata.idv.IdvBase.doMakePluginManager(IdvBase.java:1097) > at ucar.unidata.idv.IdvBase.getPluginManager(IdvBase.java:1109) > at > ucar.unidata.idv.ui.IdvUIManager.showSupportFormInThread(IdvUIManager.java:6132) > at ucar.unidata.idv.ui.IdvUIManager.access$800(IdvUIManager.java:166) > at ucar.unidata.idv.ui.IdvUIManager$33.run(IdvUIManager.java:6063) > at ucar.unidata.util.Misc$3.run(Misc.java:1243) > > > Ticket Details =================== Ticket ID: QBL-937683 Department: Support IDV Priority: Normal Status: Closed