I have downloaded jbpm-installer-3.2.7.jar but I don't know how to install or run the file.
If I double click on it, it opens in winrar. I tried installing through command prompt, but I got the following errors:
C:\Documents and Settings\ccuser\Desktop\manoj>java -jar jbpm-installer-3.2.7.jar Exception in thread "main" java.lang.UnsupportedClassVersionError: com/izforge/izpack/installer/Installer (Unsupported major.minor version 49.0) at java.lang.ClassLoader.defineClass0(Native Method) 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$100(Unknown Source) at java.net.URLClassLoader$1.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClassInternal(Unknown Source) 5 Answers
Have you tried (from a command line)
java -jar jbpm-installer-3.2.7.jar
or double clicking it with the mouse ?
Found this and this by googling.
Hope it helps
4The UnsupportedClassVersionError means that you are probably using (installed) an older version of Java as used to create the JAR.
Go to java.sun.com page, download and install a newer JRE (Java Runtime Environment).
if you want/need to develop with Java, you will need the JDK which includes the JRE.
To run usually click and it should run, that is if you have java installed. If not get java from here Sorry thought it was more general open a command prompt and type java -jar jbpm-installer-3.2.7.jar
If double-clicking on it brings up WinRAR, you need to change the program you are running it with. You can right-click on it and click "Open with". Java should be listed in there.
However, you must first upgrade your Java version to be compatible with that JAR.
Open up a command prompt and type java -jar jbpm-installer-3.2.7.jar
