大家好，我正在尝试为vscode安装ghc mod，我遇到了这个问题：
**$ stack install ghc-mod**
Populated index cache.
Error: While constructing the build plan, the following exceptions were encountered:
In the dependencies for ghc-mod-5.8.0.0:
Cabal-2.0.1.1 from stack configuration does not match >=1.18 && <1.25 (latest matching version
is 1.24.2.0)
base-4.10.1.0 from stack configuration does not match >=4.6.0.1 && <4.10 (latest matching
version is 4.9.1.0)
mcabal-helper must match <0.8 && >=0.7.3.0, but the stack configuration has no specified version
(latest matching version is 0.7.3.0)
extra-1.6.8 from stack configuration does not match <1.6 && >=1.4 (latest matching version
is 1.5.3)
ghc-8.2.2 from stack configuration does not match >=7.6 && <8.2
haskell-src-exts-1.20.2 from stack configuration does not match <1.20 && >=1.18 (latest
matching version is 1.19.1)
hlint-2.1.6 from stack configuration does not match <2.1 && >=2.0.8 (latest matching version
is 2.0.15)
monad-journal-0.8.1 from stack configuration does not match <0.8 && >=0.4 (latest matching
version is 0.7.2)
optparse-applicative-0.14.2.0 from stack configuration does not match >=0.13.0.0 && <0.14
(latest matching version is 0.13.2.0)
needed since ghc-mod is a build target.
Some different approaches to resolving this:
* 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 C:srglobal-projectstack.yaml:
- Cabal-1.24.2.0
- base-4.9.1.0
- cabal-helper-0.7.3.0
- extra-1.5.3
- haskell-src-exts-1.19.1
- hlint-2.0.15
- monad-journal-0.7.2
- optparse-applicative-0.13.2.0
Plan construction failed.
我试过stack install ghc-mod和cabal install ghc-mod，但都没有用。我总是收到这个plan construction failed。关于如何处理它有什么想法吗
P.S：我已经更新了堆栈和阴谋集团。
根据用户的建议，我将文件添加到C:srglobal-project/stack.yaml中，现在它看起来像这样：
全局stack.yaml:
packages: []
resolver: lts-11.13
Cabal-1.24.2.0
base-4.9.1.0
cabal-helper-0.7.3.0
extra-1.5.3
haskell-src-exts-1.19.1
hlint-2.0.15
monad-journal-0.7.2
optparse-applicative-0.13.2.0
在我添加了所有这些文件后，我在运行stack install ghc-mod:时出现了以下错误
$ stack install ghc-mod
Unable to load custom resolver lts-11.13 Cabal-1.24.2.0 base-4.9.1.0 cabal-helper-0.7.3.0 extra-1.5.3 haskell-src-exts-1.19.1 hlint-2.0.15 monad-journal-0.7.2 optparse-applicative-0.13.2.0 from local file:
C:srglobal-projectlts-11.13 Cabal-1.24.2.0 base-4.9.1.0 cabal-helper-0.7.3.0 extra-1.5.3 haskell-src-exts-1.19.1 hlint-2.0.15 monad-journal-0.7.2 optparse-applicative-0.13.2.0
Exception: InvalidYaml (Just (YamlException "Yaml file not found: C:\sr\global-project\lts-11.13 Cabal-1.24.2.0 base-4.9.1.0 cabal-helper-0.7.3.0 extra-1.5.3 haskell-src-exts-1.19.1 hlint-2.0.15 monad-journal-0.7.2 optparse-applicative-0.13.2.0"))
问题是ghc-mod无法在ghc-8.2上工作。支持ghc-mod的最新Stack解析器似乎是lts-9.21。
ghc-mod必须使用与您正在使用的GHC版本相同的版本进行编译，所以现在这将您限制为8.0。
编辑(2020年8月(：ghc mod已被弃用，取而代之的是Haskell IDE引擎(HIE(。
ghc mod显然未被大多数使用最新工具链的人使用，否则就会起作用。也可以考虑放弃它。