[news.eclipse.platform.rcp] my exported rcp product is getting NoClassDe

[tomingy@xxxxxxxxxxx (Tom)]

Hello guys,

My RCP works well If I run it within eclipse. However, I am getting 
"NoClassDefFoundError: antlr/ANTLRException" when I run it as a standalone 
application, by exporting the rcp project using "eclipse product export 
wizard".

I checked and found out that "antlr-2.7.6.jar" is in both "plugin.xml -> 
Runtime -> Classpath" and the .jar (MyRCP_1.0.0.jar) built by the export 
wizard.

Any idea?

Thanks very much for helping in advance.