This archive contains answers to questions sent to Unidata support through mid-2025. Note that the archive is no longer being updated. We provide the archive for reference; many of the answers presented here remain technically correct, even if somewhat outdated. For the most up-to-date information on the use of NSF Unidata software and data services, please consult the Software Documentation first.
Joseph, Please give us more information like what version of the IDV you are running. Make sure you are running the latest IDV. http://www.unidata.ucar.edu/downloads/idv/current/index.jsp Best, Unidata IDV Support > Hello. > > I cannot get the IDV to launch on my machine (Windows 7). I get the > following exception: > java.lang.UnsupportedClassVersionError: ucar/unidata/idv/DefaultIdv : > Unsupported major.minor version 51.0 > at java.lang.ClassLoader.defineClass1(Native Method) > at java.lang.ClassLoader.defineClassCond(Unknown Source) > at java.lang.ClassLoader.defineClass(Unknown Source) > at java.security.SecureClassLoader.defineClass(Unknown Source) > at java.net.URLClassLoader.defineClass(Unknown Source) > at java.net.URLClassLoader.access$000(Unknown Source) > at java.net.URLClassLoader$1.run(Unknown Source) > at java.security.AccessController.doPrivileged(Native Method) > at java.net.URLClassLoader.findClass(Unknown Source) > at com.sun.jnlp.JNLPClassLoader.findClass(Unknown Source) > at java.lang.ClassLoader.loadClass(Unknown Source) > at java.lang.ClassLoader.loadClass(Unknown Source) > at com.sun.javaws.Launcher.doLaunchApp(Unknown Source) > at com.sun.javaws.Launcher.run(Unknown Source) > at java.lang.Thread.run(Unknown Source) > > Any help would be appreciated. > > Thank you. > > Joseph Conklin > AJW-176 > CSS-Wx/NWP Support > 609-485-8273 > > > Ticket Details =================== Ticket ID: QUO-888823 Department: Support IDV Priority: Normal Status: Closed