How do I resolve a java.lang.UnsupportedClassVersionError: bad version error after installing Tcl API on a Landslide Client PC?

Doc ID: FAQ11357

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Answer

The type of Java JRE error below can happen after installing the Landslide Tcl API and attempting to launch it:

% source landslidetclapi.tcl

Starting Java with Max Heap=128m

Exception in thread "main" java.lang.UnsupportedClassVersionError: Bad version number in .class file

This will happen if you try to run Landslide using a JRE older than 1.6.0_10, like 1.5.0, 1.4.2 or maybe even 1.6.0_09.

It is recommended to re-install Java JRE 1.6.0_10 or higher from the Landslide Home page, Troubleshoot Java Web Start Problems. From the Java Plug-in download section, download the Java JRE 1.6.0_10 version or higher that is compatible with your Client PC.
Once Java JRE 1.6.0_10 or higher is installed, use the command below to confirm the version installed in the Tcl environment

% java -version

java version "1.6.0_10"

Java(TM) SE Runtime Environment (build 1.6.0_10-b33)

Java HotSpot(TM) Client VM (build 11.0-b15, mixed mode, sharing)

AQI

Version 2.0

Publish Date 2012-01-30

Categories
Product : Landslide Client,Tcl API,Landslide

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