I have as Haskell file which uses a lot of imports.
When I try to execute it with the command "ghc -o main main.hs && ./main", I get the below error message:
main.hs:4:8: error:
Could not load module ‘Prelude’
It is a member of the hidden package ‘base-4.12.0.0’.
You can run ‘:set -package base’ to expose it.
(Note: this unloads all the modules in the current scope.)
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|
4 | module Main where
| ^^^^
main.hs:6:1: error:
Could not find module ‘Data.Aeson’
Perhaps you meant
Data.Version (needs flag -package-key base-4.12.0.0)
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|
6 | import Data.Aeson
| ^^^^^^^^^^^^^^^^^
main.hs:7:1: error:
Could not load module ‘Data.Text’
It is a member of the hidden package ‘text-1.2.3.1’.
You can run ‘:set -package text’ to expose it.
(Note: this unloads all the modules in the current scope.)
Use -v to see a list of the files searched for.
|
7 | import Data.Text (Text)
| ^^^^^^^^^^^^^^^^^^^^^^^
main.hs:10:1: error:
Could not find module ‘Network.Wreq’
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|
10 | import Network.Wreq
| ^^^^^^^^^^^^^^^^^^^
I have installed all of the necessary modules from the Haskell package manager using cabal.
Why aren't the imports working?