无法使用cabal安装hsdev

Question

我在Arch上，我正在尝试用cabal (cabal install hsdev)安装hsdev，但当它开始编译时，它开始编译HsDev.Tools.GhcMod时，我得到了以下消息：

[46 of 58] Compiling HsDev.Tools.GhcMod ( src/HsDev/Tools/GhcMod.hs, dist/build/HsDev/Tools/GhcMod.o )

src/HsDev/Tools/GhcMod.hs:64:54:
    ‘GhcMod.ghcUserOptions’ is not a (visible) constructor field name

src/HsDev/Tools/GhcMod.hs:73:34:
    ‘GhcMod.detailed’ is not a (visible) constructor field name

src/HsDev/Tools/GhcMod.hs:73:58:
    ‘GhcMod.qualified’ is not a (visible) constructor field name

src/HsDev/Tools/GhcMod.hs:73:83:
    ‘GhcMod.ghcUserOptions’ is not a (visible) constructor field name

src/HsDev/Tools/GhcMod.hs:118:38:
    ‘GhcMod.ghcUserOptions’ is not a (visible) constructor field name

src/HsDev/Tools/GhcMod.hs:176:58:
    ‘GhcMod.ghcUserOptions’ is not a (visible) constructor field name

src/HsDev/Tools/GhcMod.hs:221:32:
    ‘GhcMod.ghcUserOptions’ is not a (visible) constructor field name

src/HsDev/Tools/GhcMod.hs:228:32:
    ‘GhcMod.hlintOpts’ is not a (visible) constructor field name
cabal: Error: some packages failed to install:
hsdev-0.1.4.3 failed during the building phase. The exception was:
ExitFailure 1

Answer 1

好的，我已经弄明白了。最新版本的ghc-mod与hsdev不兼容，所以我不得不为它添加约束：

ghc-mod >= 5.3.0.0 && < 5.4.0.0