[antlr-interest] C# Upgrade Woes

[Kevin Carroll]

I am attempting to update a set of grammar files for the C# version of ANTLR.  The files work correctly with version 3.3.0.7239.
When I attempt to use the same files with version 3.3.3.8388, I get the following error:

error(100): PrimisScript.g:0:1: syntax error: antlr.print: MismatchedTreeNodeException(33!=2)

Can anyone point me to where to start looking for the problem based on the above message?

Thanks,
Kevin Carroll