Hi everyone,
I ran into this error when recompiling some code I hadn't worked on in a
while:
Foo.hs:19:7:
Could not find module `Control.Monad.Error':
it was found in multiple packages: monads-fd-0.0.0.1 mtl-1.1.0.2
I gather that monads-fd is supposed to be a replacement for mtl, but I
have both of them (mtl from the normal GHC 6.10.4 install, monads-fd
from cabal). I don't really care which one I use, though mtl has been
fine in the past. In the past, I had to manually uninstall cabal
packages that used incompatible libraries. Is this still the case?
TIA,
Mike
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