[web-devel] GHCi runtime linker: fatal error: I found a duplicate definition for symbol (Yesod)

Kazu Yamamoto ( 山本和彦 ) kazu at iij.ad.jp
Thu Mar 24 09:06:20 CET 2011


> I've basically given up.  Evertime there is an update to yesod, I run these commands to fix everything:
> rm -r ~/.ghc; cd <my project>; cabal install happy alex; cabal install
> then I go get coffee, when I come back, everything works.

The "cab" command would ease your package life.



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