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Asked: 2026-05-23T04:51:29+00:00

I have two files in the same folder, Eval.hs and Data.hs , module in

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I have two files in the same folder, Eval.hs and Data.hs, module in Eval.hs imports module TI.Data in Data.hs, when I try to load Eval.hs in the interactive (in emacs haskell mode: Ctrl-c, Ctrl l), it said it can’t find the module defined in Data.hs, but it loaded successfully before, why suddenly it can’t??
btw, I noticed that the first time I execute Ctrl-c, Ctrl l, the interative window:

GHCi, version 6.12.1: http://www.haskell.org/ghc/  :? for help
Loading package ghc-prim ... linking ... done.
Loading package integer-gmp ... linking ... done.
Loading package base ... linking ... done.
Prelude> :cd ~/.cabal/                                                          
Prelude> :load "../hs/TI/Eval.hs"                                               

../hs/TI/Eval.hs:2:7:                                                           
    Could not find module `TI.Data':
      Use -v to see a list of the files searched for.
Failed, modules loaded: none.
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1 Answer

  1. Editorial Team

    I sometimes have this same problem with haskell-mode on Emacs. My workaround is to

    Prelude> :cd ~/hs/TI
Prelude> :load "Eval.hs"

    Now when you want to reload the module you have to use

    Prelude> :r

    instead of Ctrl-C, Ctrl-l.

    If someone knows a better way, please let me know.

    -deech

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