Hello Café,<br><br>When I was trying to cabal-install haskell-src, I came up with:<br>cabal: The program happy is required but it could not be found<br><br>However, the happy package was actually installed and the &#39;happy&#39; executable was in ~/.cabal/bin (which was in my PATH)<br>
I had to link ~/.cabal/bin/happy to /usr/bin/happy so that cabal-install may finally find it.<br>