Re: [Haskell-beginners] cabal problem

You most likely updated GHC or something and so you have to reinstall all the packages you get errors for first: cabal install QuckCheck -reinstall --force-reinstalls Am 15.05.2015 um 09:10 schrieb Roelof Wobben:

Another problem.

I now see this output :

Preprocessing library digits-0.2... [1 of 1] Compiling Data.Digits ( src/Data/Digits.hs, dist/build/Data/Digits.o ) /usr/bin/ld: cannot find -lHSQuickCheck-2.8.1-ghc7.8.3 /usr/bin/ld: cannot find -lHStf-random-0.5-ghc7.8.3 /usr/bin/ld: cannot find -lHSprimitive-0.6-ghc7.8.3 /usr/bin/ld: cannot find -lHStransformers-0.4.3.0-ghc7.8.3 /usr/bin/ld: cannot find -lHSrandom-1.1-ghc7.8.3 collect2: error: ld returned 1 exit status Failed to install digits-0.2 cabal: Error: some packages failed to install: digits-0.2 failed during the building phase. The exception was: ExitFailure 1 codio@switch-grille:~/workspace$ ghc ghc: no input files Usage: For basic information, try the `--help' option. codio@switch-grille:~/workspace$ ghc --version The Glorious Glasgow Haskell Compilation System, version 7.8.3

Roelof

Roelof Wobben schreef op 15-5-2015 om 9:08:

...

Thanks,

And if I want to import it into my project , do I then do import Data.Digits ?

Roelof

Alex Hammel schreef op 14-5-2015 om 23:25:

...

`Data.Digits` is the name of the module. The name of the package is `digits`. Therefore: $(cabal install digits)

`cabal` installs packages, which may contain many modules

On Thu, 14 May 2015 at 14:14 Roelof Wobben mailto:r.wobben@home.nl> wrote:

Hello,,

I want to use the module Digits which according to Hoogle is in Data.Digits

But when I do cabal install Data.Digits I see this error message :

cabal install Data.Digits cabal: The file does not exist 'Data.Digits'

What do I do wrong ?

Roelof

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