Problems with Roo Shell in STS 2.9.2

Hi,

I am trying to start the Roo Shell (1.2.1) that was installed as part of STS 2.9.2 using a terminal under Mac OS X. I have two problems:

1) Just starting Roo (by typing roo) gives me a NPE

ERROR: Bundle org.springframework.roo.process.manager [54] EventDispatcher: Error during dispatch. (java.lang.NullPointerException)
java.lang.NullPointerException
...

2) Trying to run the pizzastore.roo from the command line first gives this NPE, then continues just to hit another error

Lexical error at line 44, column 29. Encountered: "\u00fb" (251), after : "\'\u221a"

Things seem to work fine under the Roo Shell inside the STS.

Any ideas?

Thanks,
Hauke