A complex program of mine fails with this message:

Fail: Maybe.fromJust: Nothing

I tried to extract more information about the error by compiling with -prof -auto-all and running the program with +RTS -xc, as advised on http://www.haskell.org/hawiki/TipsAndTricks . This yielded exactly one additional line:

<Data.Maybe.CAF>.
Fail: Maybe.fromJust: Nothing

(Same result for GHC 6.0.1 and 6.2.)

Is there another option I have to use to get a full stack trace? Or is my longing for stack traces a side-effect of writing too much Java code that I have to overcome? :)

-Stefan

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