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Unsupported major.minor version 48.0 problem while running the an
   telope task-

Unsupported major.minor version 48.0 problem while running the an
   telope task-

2003-12-13       - By Nagarajan Murugesan

Hi All,

I am having a problem with Antelope task.

This is my ant script:

<project name= "Installation " default= "sqlrun " >

    <target name= "sqlrun " >
    <taskdef name= "var " classname= "ise.antelope.tasks.Variable "/ >
    <property name= "ant.enable.var " value= "true "/ >

    <var name= "x " value= "6 "/ >
<echo >x = ${x} </echo > <!-- print: 6 -- >

<var name= "x " value= "12 "/ >
<echo >x = ${x} </echo > <!-- print: 12 -- >

<var name= "x " value= "6 + ${x} "/ >
<echo >x = ${x} </echo > <!-- print: 6 + 12 -- >

    </target >
</project >

while running the script, error given as

BUILD FAILED: java.lang.UnsupportedClassVersionError:
ise/antelope/tasks/Variable (Unsupported major.minor version 48.0)
Total time: 370 milliseconds

what could be the problem? How to solve this?

Can any one help me out.