Hi,

We are upgrading from Pega 7.2.2 to Pega 8.1.1. While running the migration script, we are getting below error. Attached is the migrateSystem.properties file we are using. we are using JDK 1.7.1_64

BUILD FAILED
/sb/bpminfra/install/pegaApps/Pega811/scripts/migrateSystem.xml:9: java.lang.UnsupportedClassVersionError: JVMCFRE003 bad major version; class=com/pega/pegarules/util/anttasks/Uppercase, offset=6
at java.lang.ClassLoader.defineClassImpl(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:331)
at org.apache.tools.ant.AntClassLoader.defineClassFromData(AntClassLoader.java:1136)
at org.apache.tools.ant.AntClassLoader.getClassFromStream(AntClassLoader.java:1307)
at org.apache.tools.ant.AntClassLoader.findClassInComponents(AntClassLoader.java:1362)
at org.apache.tools.ant.AntClassLoader.findClass(AntClassLoader.java:1323)
at org.apache.tools.ant.AntClassLoader.loadClass(AntClassLoader.java:1076)
at java.lang.ClassLoader.loadClass(ClassLoader.java:741)
at java.lang.Class.forNameImpl(Native Method)
at java.lang.Class.forName(Class.java:309)
at org.apache.tools.ant.taskdefs.Definer.addDefinition(Definer.java:579)
at org.apache.tools.ant.taskdefs.Definer.loadProperties(Definer.java:408)
at org.apache.tools.ant.taskdefs.Definer.execute(Definer.java:264)
at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:292)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:95)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:56)
at java.lang.reflect.Method.invoke(Method.java:620)
at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106)
at org.apache.tools.ant.Task.perform(Task.java:348)
at org.apache.tools.ant.Target.execute(Target.java:435)
at org.apache.tools.ant.helper.ProjectHelper2.parse(ProjectHelper2.java:180)
at org.apache.tools.ant.ProjectHelper.configureProject(ProjectHelper.java:93)
at org.apache.tools.ant.Main.runBuild(Main.java:826)
at org.apache.tools.ant.Main.startAnt(Main.java:235)
at org.apache.tools.ant.launch.Launcher.run(Launcher.java:280)
at org.apache.tools.ant.launch.Launcher.main(Launcher.java:109)