Facing Error while building Leyna - properties-build.xml:162: taskdef class com.thaiopensource.relaxng.util.JingTask cannot be found

 Hi All,
I am trying to build the lenya CMS on my PC but after configuration when I try to build leyna using build.bat file I am getting bellow error.
C:\src\apache-lenya-2.0.3-src>build.bat
ECHO is off.
Buildfile: build.xml
BUILD FAILED
C:\src\apache-lenya-2.0.3-src\src\targets\properties-build.xml:162: taskdef class com.thaiopensource.relaxng.util.JingTask cannot be found
Total time: 0 seconds
I have checked the existence of jingTask class file and it is there inside "jing-20030619.jar" file and this file is well included in classpath env variable.
Can someone have an idea how I can correct this error?
Thanks in advance for your help and suggestions.


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