JSBuilder 2/3 - Any tutorials/setup anywhere?

[N.Sudha]

fx-mike , you are right. it does work as is.
I was trying to use the one downloaded from the website which is jsbuilder2.
Anyways, thanks a lot for you help.
problem solved

Hi,
I am using JSBuilder-2.0.3 to compress the JS and CSS files which is used in my application.
While compressing the following issue came,

D:\Murali\JSBuilder-2.0.3>java -jar JSBuilder2.jar --projectFile D:\Murali\ext-3.4.0\ext.jsb2 --homeDir D:\Murali\

System default encoding is Cp1252.
Using the 'Cp1252' encoding
Loading the 'Ext JS' Project
Loaded 43 Packages
Using the 'ext-3.4+' package name as deploy directory.
java.lang.NullPointerException
at java.io.FileInputStream.<init>(Unknown Source)
at com.extjs.FileHelper.readFile(FileHelper.java:157)
at com.extjs.FileHelper.copyFileText(FileHelper.java:200)
at com.extjs.JSBuilder2.createTargetsWithDeps(JSBuilder2.java:403)
at com.extjs.JSBuilder2.main(JSBuilder2.java:77)
Failed to create target with package dependencies.
Writing headers...
Compressing output files...
Removing temporary files...


FYI : I have attached the screenshot of this Command prompt error message.
Please provide a solution for this issue.