[Haskell-beginners] cabal problem

[Carsten König]

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 at switch-grille:~/workspace$ ghc                                                                                     
> ghc: no input files                                                                                                      
> Usage: For basic information, try the `--help' option.                                                                   
> codio at 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 <r.wobben at home.nl
>>> <mailto:r.wobben at 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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>>
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