The Haskell process `xx’ has died issue

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于 2017-10-31 11:33:07 发布

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分类专栏： Haskell 文章标签： haskell

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本文介绍了一个在Emacs环境下使用Cabal-repl遇到的问题及解决方法。主要表现为启动Cabal-repl后与GHCi进程通信异常，通过在init.el文件中加入(set-language-environment 'utf-8)解决了这一问题。

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genvironment: emacs 2.5 , windows10 (chinese / japanese)
cabal init… , cabal configure… ,
open the Main.hs and press c-c c-l, I get the following message :

The Haskell process 'xx' has died. Restart? (y, n, l: show process log)

press y or n, coundn’t solve the problem. when press l ,I get the message :

("Starting inferior `cabal repl' process using cabal ..." "hello" nil "cabal" "repl" "--ghc-option=-ferror-spans")
-> Prelude.putStrLn ""
:set -v1
:set +c
-> :set prompt "\4"
-> :set prompt2 "λ| "
GHCi, version 8.0.1: http://www.haskell.org/ghc/ :? for help
*Main> *Main> *Main> Leaving GHCi.

This seems to “cabal repl” has started successfully, but there is something wrong between repl and ghci’s precess communication(maybe, I guess).

to solve the issue, put (set-language-environment ‘utf-8) into init.el.