Hi Alexandre, My Haskell is rusty but this problem seems easy enough to quash. On Mon, Nov 18, 2024 at 01:08:50AM +0100, Alexandre Detiste wrote: > I fumbled a bit but don't know how to repack > Control.Monad.Error with Control.Monad.Except The Error instance is superfluous since ErrorT/ExceptT, certain instances of which would have needed it, are not used at all. Removing the `instance Error RaincatError where` line builds for me. --Daniel
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