[antlr-interest] Antlr Book Chapter 3 troubles

[Terence Parr]

On Sep 5, 2008, at 12:44 PM, Tim Halloran wrote:
> [15:36:28] error(10):  internal error: /Users/tim/Source/antlr-Work/ 
> Ch3 Expr AST/src/Eval.g : java.lang.NullPointerException
> org.antlr.codegen.CodeGenTreeWalker.atom(CodeGenTreeWalker.java:1959)

I don't see rule atom.

Ter
>