I am trying to import .csv data and so I am trying to build a simple
example using cassava and I have run out of ideas to get it to work. I
added cassava-0.5.1.0 to stack.yaml and then the builder failed based on
version and suggested bytestring-0.10.2.0, which I added then version
failed and suggested deepseq-1.3.0.2 and then version failed and
suggested base-4.7.0.2 and fails and keeps suggesting adding base-4.7.0.2
though it is in there. I tried "allow-newer: true" and gave a bunch of
type failures. I also tried stack solver --update-config which just
removed all the extra-deps: including cassava. It appears not to
find base-4.7.0.2. This is my first attempt to build something useful with
stack.
*"stack build" output below:*
Error: While constructing the build plan, the following exceptions were
encountered:
In the dependencies for deepseq-1.3.0.2:
base-4.11.1.0 from stack configuration does not match >=4.3 && <4.8
(latest matching version is 4.7.0.2)
needed due to bayesHask-0.1.0.0 -> deepseq-1.3.0.2
Some different approaches to resolving this:
* Set 'allow-newer: true' to ignore all version constraints and build
anyway.
* Consider trying 'stack solver', which uses the cabal-install solver to
attempt to find some working build configuration. This can be convenient
when dealing with many complicated constraint
errors, but results may be unpredictable.
* Recommended action: try adding the following to your extra-deps in
/home/jack/Dropbox/src/bayesHask/stack.yaml:
- base-4.7.0.2
Plan construction failed.
*stack.yaml file:*
*flags: {}*
*packages:*
*- .*
*extra-deps:*
*- cassava-0.5.1.0*
*- bytestring-0.10.2.0*
*- deepseq-1.3.0.2*
*- base-4.7.0.2*
*resolver: lts-12.5*
*#allow-newer: true*
*Lib.hs file:*
*module Lib*
* ( someFunc*
* ) where*
*import qualified Data.Text.IO as T*
*import qualified Data.ByteString.Lazy as BL*
*import Data.Csv*
*import qualified Data.Vector as V*
*someFunc :: IO ()*
someFunc = putStrLn "someFunc"
*package.yaml file:*
*name: bayesHask*
*version: 0.1.0.0*
*github: "githubuser/bayesHask"*
*license: BSD3*
*author: "Jack Vice"*
*maintainer: "exam...@example.com"*
*copyright: "2018 Jack Vice"*
*extra-source-files:*
*- README.md*
*- ChangeLog.md*
*# Metadata used when publishing your package*
*# synopsis: Short description of your package*
*# category: Web*
*# To avoid duplicated efforts in documentation and dealing with the*
*# complications of embedding Haddock markup inside cabal files, it is*
*# common to point users to the README.md file.*
*description: Please see the README on GitHub at
<https://github.com/githubuser/bayesHask#readme>*
*dependencies:*
*- base >= 4.7 && < 5*
*- text*
*- bytestring*
*- cassava*
*library:*
* source-dirs: src*
*executables:*
* bayesHask-exe:*
* main: Main.hs*
* source-dirs: app*
* ghc-options:*
* - -threaded*
* - -rtsopts*
* - -with-rtsopts=-N*
* dependencies:*
* - bayesHask*
*tests:*
* bayesHask-test:*
* main: Spec.hs*
* source-dirs: test*
* ghc-options:*
* - -threaded*
* - -rtsopts*
* - -with-rtsopts=-N*
* dependencies:*
* - bayesHask*
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