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Error when installing fn-extra using stack lts-14.20 #27

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MuratOzsoyler opened this issue Jan 14, 2020 · 0 comments
Open

Error when installing fn-extra using stack lts-14.20 #27

MuratOzsoyler opened this issue Jan 14, 2020 · 0 comments

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@MuratOzsoyler
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When installing I get this error:
fn-extra> [2 of 2] Compiling Web.Fn.Extra.Heist
fn-extra>
fn-extra> src\Web\Fn\Extra\Heist.hs:47:1: error:
fn-extra> Could not find module `Control.Monad.Trans.Either'
fn-extra> Perhaps you meant
fn-extra> Control.Monad.Trans.Iter (needs flag -package-key free-5.1.3)
fn-extra> Control.Monad.Trans.Writer (needs flag -package-key transformers-0.5.6.2)
fn-extra> Control.Monad.Trans.Error (needs flag -package-key transformers-0.5.6.2)
fn-extra> Use -v to see a list of the files searched for.
fn-extra> |
fn-extra> 47 | import Control.Monad.Trans.Either

I think fn-extra can not be compiled with GHC version > 8.4.x. Is it so?

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