Hi.
Miroslava Plachá wrote:
Hi,
I uninstalled and reinstalled Gecode/J (the last release) and when
I try to run
any given example (and see gist working) I get this error:
C:\javagecode\druhy\Gist\src\examples\Options.java:16: cannot access
org.gecode.gist.Gist
bad class file: C:\Program Files\Java\jdk1.5.0_09\jre\lib\ext
\GecodeJ.jar(org/gecode/gist/Gist.class)
class file has wrong version 50.0, should be 49.0
Please remove or make sure it appears in the correct subdirectory
of the
classpath.
import org.gecode.gist.Gist;
I didn't touch anything in Options.java (have a new project with
this class
and one example).
If I write my own program (just with org.gecode classes) it works
fine.
What can be wrong and how can I fix it?
This is a bug in the Windows package that we only found recently.
Apparently, stuff compiled with Java 1.6 does not run on Java 1.5,
and our new Gecode/J packages were compiled with 1.6. You have two
options: upgrade to Java 1.6, or wait a little while - we're
currently building and testing new Windows installer packages that
will work with both Java 1.5 and 1.6.
Cheers,
Guido
--
Guido Tack
Programming Systems Lab, Saarland University, Germany
http://www.ps.uni-sb.de/~tack
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