On 24 April 2011 22:27, Rogan Creswick <cresw...@gmail.com> wrote: > On Sun, Apr 24, 2011 at 11:13 AM, Gracjan Polak <gracjanpo...@gmail.com> > wrote: > > I have a project with a .cabal file listing package dependencies using > > the usual version constraints ==X.Y.* <Z.W or >=K.J syntax. > > Standard route cabal configure; cabal build works correctly as it is able > > to select working set of package versions. > > > > I have also a .ghci file. When I run GHCi it uses all latest installed > packages > > in the system. This prevents the project from loading. > > > > I tried to use 'cabal-dev ghci', but this still selects latest global > packages. > > This should only arise for the base ghc packages, which are tied > closely enough to ghc that you should probably switch ghc versions if > you want to work with different versions of those core packages. > > If you're installing additional packages globally, my only advice is: > Beware, there be dragons! I strongly recommend that you ghc-pkg > unregister all the non-essential packages from your global package db > because: >
I'll second this; I had the same problem and just uninstalled the global package and went ahead and uninstalled them all, no problems since. All my projects are under cabal-dev so it's not a problem.
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