我有以下问题ghc-mod阻止我在yesod应用程序项目中对某些文件使用 ide。

我安装模板应用程序如下：

产生以下stack.yaml（删除的注释行）：

这是一个demo.cabal： http: //pastebin.com/i4n1TR6W。

然后，运行stack exec -- ghc-mod check app/main.hs不会产生错误，但stack exec -- ghc-mod check app/devel.hs有这样的说法：

所以ghc-mod不知何故认为这个包本身是隐藏的？但是任何其他地方的项目文件被另一个检查正常，并且应用程序构建并成功运行。此文件的唯一细节是使用PackageImports语言扩展名：

我尝试使用谷歌搜索错误消息，但它似乎只针对外部包而不是正在调试的包。

如果我安装 ghc-mod

我得到：

然而，原子抱怨

Haskell-ghc-mod：ghc-mod 无法启动它可能丢失或配置错误

但是，当我在 ubuntu 上时，sudo apt-get ghc-mod解决了这个问题，但这次 atom 抱怨说

错误：命令失败：ghc-mod 版本“版本”不支持 ghc-mod 版本 3.1.4

因此，似乎apt-get以正确的方式安装了错误版本的 ghc-mod，而cabal以错误的方式安装了正确版本的 ghc-mod。

尝试sudo cabal install ghc-mod --global没有成功

错误：命令失败：ghc-mod 版本“版本”不支持 ghc-mod 版本 3.1.4

之后cabal install random，我尝试ghc-mod list了，但仍然看不到包。

我现在也尝试添加random-1.1到我的全局 stack.yaml （试图在这里制作一个简单的脚本......）并通过安装stack install random无济于事。

我的文件似乎运行良好runhaskell。

截至 2016 年 5 月，ghc-mod 是否支持使用 ghcjs 编译的项目？

我意识到在很多情况下，源是相同的，但在使用 ghcjs-dom 库时情况并非如此。

我目前有 2 个项目文件夹，配置了堆栈。从这些文件夹之外：

完美运行。这里的stack.yaml文件指定了ghc-7.10.2

失败。这里的stack.yaml文件指定了ghcjs-0.2.0.0_ghc-7.10.2

这是预期的行为吗？我无法告诉 frrm 功能请求和 wiki 的当前状态是什么。

我有一个项目，其主要 cabal 组件是一个库

这也定义了

现在，如果我尝试输入检查一个文件，我会收到以下错误

如果我从命令行这样做，我会得到

所以它似乎忽略了hs-source-dirs我尝试类型检查的当前文件所属的组件的设置，而是考虑包的第一个组件中的那个，就像cabal repl默认情况下所做的那样

By default cabal repl loads the first component in a package.

我怎样才能改变那个漂亮的全局状态？

我安装了包，stack install但我无法导入包，除非我使用stack ghc或stack ghci...

问题是我已经安装了atom haskell ide，它使用ghc-mod后端，也没有看到堆栈安装的包！

我一直在使用 Windows 7 上的 atom 编辑器学习 haskell。在我创建了一个 .cabal 文件之前，它一直运行良好。现在我不断收到红色错误消息。事实上，无法使用是非常糟糕的，因为错误消息不断弹出的速度比你删除它们的速度要快。haskell 程序是一个简单的 hello world。

.cabal 文件如下：

错误信息如下：

*[在下面输入重现步骤：] 1. ... 2. ... Atom 版本：1.8.0 系统：Microsoft Windows 7 Professional 抛出自：haskell-ghc-mod包，v1.17.2

堆栈跟踪

Haskell-ghc-mod：ghc-mod 交互式命令类型失败，错误 ghc-modi 崩溃 At caps: {"version":[5,5,0,0],"fileMap":true,"quoteArgs":true,"optparse":true,"typeConstraints":false,"browseParents":false,"interactiveCaseSplit":false} URI: C:\Users\Tyrone\MyProjects\hello-haskell\src\Main.hs Args: --,1,1 message: log: -2.884s: {} -2.884s: "Trying to run ghc-modi in C:\\Users\\Tyrone\\MyProjects\\hello-haskell" -2.884s: "Checking for ghc-modi in C:\\Users\\Tyrone\\MyProjects\\hello-haskell" -2.884s: "Spawning new ghc-modi instance for C:\\Users\\Tyrone\\MyProjects\\hello-haskell with",{"cwd":"C:\\Users\\Tyrone\\MyProjects\\hello-haskell","env":{"ALLUSERSPROFILE":"C:\\ProgramData","APPDATA":"C:\\Users\\Tyrone\\AppData\\Roaming","ATOM_HOME":"C:\\Users\\Tyrone\\.atom","CommonProgramFiles":"C:\\Program Files\\Common Files","COMPUTERNAME":"TYRONE-PC","ComSpec":"C:\\Windows\\system32\\cmd.exe","FP_NO_HOST_CHECK":"NO","GHC":"c:\\users\\tyrone\\appdata\\local\\programs\\stack\\i386-windows\\ghc-7.10.3\\bin","GOOGLE_API_KEY":"AIzaSyAQfxPJiounkhOjODEO5ZieffeBv6yft2Q","HOMEDRIVE":"C:","HOMEPATH":"\\Users\\Tyrone","LOCALAPPDATA":"C:\\Users\\Tyrone\\AppData\\Local","LOGONSERVER":"\\\\TYRONE-PC","NUMBER_OF_PROCESSORS":"2","OS":"Windows_NT","Path":"C:\\ProgramData\\Oracle\\Java\\javapath;C:\\Windows\\system32;C:\\Windows;C:\\Windows\\System32\\Wbem;C:\\Windows\\System32\\WindowsPowerShell\\v1.0\\;C:\\Program Files\\Skype\\Phone\\;C:\\Program Files\\Support Tools\\;C:\\Program Files\\Git\\cmd;C:\\Users\\Tyrone\\AppData\\Roaming\\local\\bin;c:\\users\\tyrone\\appdata\\local\\atom\\bin;c:\\stack_root;c:\\users\\tyrone\\appdata\\local\\programs\\stack\\i386-windows\\ghc-7.10.3\\bin","PATHEXT":".COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH;.MSC","PROCESSOR_ARCHITECTURE":"x86","PROCESSOR_IDENTIFIER":"x86 Family 6 Model 15 Stepping 6, GenuineIntel","PROCESSOR_LEVEL":"6","PROCESSOR_REVISION":"0f06","ProgramData":"C:\\ProgramData","ProgramFiles":"C:\\Program Files","PSModulePath":"C:\\Windows\\system32\\WindowsPowerShell\\v1.0\\Modules\\","PUBLIC":"C:\\Users\\Public","ROOT_ATOM_DIRECTORY":"c:\\users\\tyrone\\appdata\\local\\atom\\bin","SESSIONNAME":"Console","skype":"C:\\Program Files\\Skype\\Phone\\","STACK_ROOT":"c:\\stack_root","SystemDrive":"C:","SystemRoot":"C:\\Windows","TEMP":"C:\\Users\\Tyrone\\AppData\\Local\\Temp","TMP":"C:\\Users\\Tyrone\\AppData\\Local\\Temp","USERDOMAIN":"Tyrone-PC","USERNAME":"Tyrone","USERPROFILE":"C:\\Users\\Tyrone","windir":"C:\\Windows","windows_tracing_flags":"3","windows_tracing_logfile":"C:\\BVTBin\\Tests\\installpackage\\csilogfile.log","NODE_PATH":"C:\\Users\\Tyrone\\AppData\\Local\\atom\\app-1.8.0\\resources\\app.asar\\exports","NODE_ENV":"production","PATH":"C:\\stack_root\\global-project\\.stack-work\\install\\6840de01\\bin;C:\\stack_root\\snapshots\\48375d44\\bin;C:\\ProgramData\\Oracle\\Java\\javapath;C:\\Windows\\system32;C:\\Windows;C:\\Windows\\System32\\Wbem;C:\\Windows\\System32\\WindowsPowerShell\\v1.0\\;C:\\Program Files\\Skype\\Phone\\;C:\\Program Files\\Support Tools\\;C:\\Program Files\\Git\\cmd;C:\\Users\\Tyrone\\AppData\\Roaming\\local\\bin;c:\\users\\tyrone\\appdata\\local\\atom\\bin;c:\\stack_root;c:\\users\\tyrone\\appdata\\local\\programs\\stack\\i386-windows\\ghc-7.10.3\\bin"},"encoding":"utf-8","maxBuffer":null} -2.884s: "Spawning new ghc-modi instance for C:\\Users\\Tyrone\\MyProjects\\hello-haskell with options = ",{"cwd":"C:\\Users\\Tyrone\\MyProjects\\hello-haskell","env":{"ALLUSERSPROFILE":"C:\\ProgramData","APPDATA":"C:\\Users\\Tyrone\\AppData\\Roaming","ATOM_HOME":"C:\\Users\\Tyrone\\.atom","CommonProgramFiles":"C:\\Program Files\\Common Files","COMPUTERNAME":"TYRONE-PC","ComSpec":"C:\\Windows\\system32\\cmd.exe","FP_NO_HOST_CHECK":"NO","GHC":"c:\\users\\tyrone\\appdata\\local\\programs\\stack\\i386-windows\\ghc-7.10.3\\bin","GOOGLE_API_KEY":"AIzaSyAQfxPJiounkhOjODEO5ZieffeBv6yft2Q","HOMEDRIVE":"C:","HOMEPATH":"\\Users\\Tyrone","LOCALAPPDATA":"C:\\Users\\Tyrone\\AppData\\Local","LOGONSERVER":"\\\\TYRONE-PC","NUMBER_OF_PROCESSORS":"2","OS":"Windows_NT","Path":"C:\\ProgramData\\Oracle\\Java\\javapath;C:\\Windows\\system32;C:\\Windows;C:\\Windows\\System32\\Wbem;C:\\Windows\\System32\\WindowsPowerShell\\v1.0\\;C:\\Program Files\\Skype\\Phone\\;C:\\Program Files\\Support Tools\\;C:\\Program Files\\Git\\cmd;C:\\Users\\Tyrone\\AppData\\Roaming\\local\\bin;c:\\users\\tyrone\\appdata\\local\\atom\\bin;c:\\stack_root;c:\\users\\tyrone\\appdata\\local\\programs\\stack\\i386-windows\\ghc-7.10.3\\bin","PATHEXT":".COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH;.MSC","PROCESSOR_ARCHITECTURE":"x86","PROCESSOR_IDENTIFIER":"x86 Family 6 Model 15 Stepping 6, GenuineIntel","PROCESSOR_LEVEL":"6","PROCESSOR_REVISION":"0f06","ProgramData":"C:\\ProgramData","ProgramFiles":"C:\\Program Files","PSModulePath":"C:\\Windows\\system32\\WindowsPowerShell\\v1.0\\Modules\\","PUBLIC":"C:\\Users\\Public","ROOT_ATOM_DIRECTORY":"c:\\users\\tyrone\\appdata\\local\\atom\\bin","SESSIONNAME":"Console","skype":"C:\\Program Files\\Skype\\Phone\\","STACK_ROOT":"c:\\stack_root","SystemDrive":"C:","SystemRoot":"C:\\Windows","TEMP":"C:\\Users\\Tyrone\\AppData\\Local\\Temp","TMP":"C:\\Users\\Tyrone\\AppData\\Local\\Temp","USERDOMAIN":"Tyrone-PC","USERNAME":"Tyrone","USERPROFILE":"C:\\Users\\Tyrone","windir":"C:\\Windows","windows_tracing_flags":"3","windows_tracing_logfile":"C:\\BVTBin\\Tests\\installpackage\\csilogfile.log","NODE_PATH":"C:\\Users\\Tyrone\\AppData\\Local\\atom\\app-1.8.0\\resources\\app.asar\\exports","NODE_ENV":"production","PATH":"C:\\stack_root\\global-project\\.stack-work\\install\\6840de01\\bin;C:\\stack_root\\snapshots\\48375d44\\bin;C:\\ProgramData\\Oracle\\Java\\javapath;C:\\Windows\\system32;C:\\Windows;C:\\Windows\\System32\\Wbem;C:\\Windows\\System32\\WindowsPowerShell\\v1.0\\;C:\\Program Files\\Skype\\Phone\\;C:\\Program Files\\Support Tools\\;C:\\Program Files\\Git\\cmd;C:\\Users\\Tyrone\\AppData\\Roaming\\local\\bin;c:\\users\\tyrone\\appdata\\local\\atom\\bin;c:\\stack_root;c:\\users\\tyrone\\appdata\\local\\programs\\stack\\i386-windows\\ghc-7.10.3\\bin"},"encoding":"utf-8","maxBuffer":null} -2.884s: "Started interactive action block in C:\\Users\\Tyrone\\MyProjects\\hello-haskell" -2.884s: "Running ghc-modi command type","C:\\Users\\Tyrone\\MyProjects\\hello-haskell\\src\\Main.hs","--",1,1 -2.419s: "ghc-modi said: " -2.419s: "ghc-modi said: on the commandline: Warning:" -2.419s: "ghc-modi said: -package-conf=C:\\Users\\Tyrone\\AppData\\Roaming\\ghc-mod\\cabal-helper\\Cabal-1.24.0.0-db-7.10.3 is deprecated: Use -package-db instead" -1.936s: "ghc-modi said: [1 of 5] Compiling CabalHelper.Types ( CabalHelper\\Types.hs, C:\\Users\\Tyrone\\AppData\\Roaming\\ghc-mod\\cabal-helper\\CabalHelper\\Types.o )" -0.807s: "ghc-modi said: [2 of 5] Compiling CabalHelper.Common ( CabalHelper\\Common.hs, C:\\Users\\Tyrone\\AppData\\Roaming\\ghc-mod\\cabal-helper\\CabalHelper\\Common.o )" -0.445s: "ghc-modi said: [3 of 5] Compiling CabalHelper.Sandbox ( CabalHelper\\Sandbox.hs, C:\\Users\\Tyrone\\AppData\\Roaming\\ghc-mod\\cabal-helper\\CabalHelper\\Sandbox.o )" -0.228s: "ghc-modi said: [4 of 5] Compiling CabalHelper.Licenses ( CabalHelper\\Licenses.hs, C:\\Users\\Tyrone\\AppData\\Roaming\\ghc-mod\\cabal-helper\\CabalHelper\\Licenses.o )" -0.071s: "ghc-modi said: " -0.071s: "ghc-modi said: CabalHelper\\Licenses.hs:38:28:" -0.071s: "ghc-modi said: Not in scope: `lookupComponentId'" -0.07s: "ghc-modi said: Perhaps you meant one of these:" -0.07s: "ghc-modi said: `lookupComponent' (imported from Distribution.Simple.LocalBuildInfo)," -0.07s: "ghc-modi said: `localComponentId' (imported from Distribution.Simple.LocalBuildInfo)" -0.07s: "ghc-modi said: " -0.07s: "ghc-modi said: CabalHelper\\Licenses.hs:53:18:" -0.07s: "ghc-modi said: Ambiguous occurrence `lookupInstalledPackageId'" -0.07s: "ghc-modi said: It could refer to either `CabalHelper.Licenses.lookupInstalledPackageId'," -0.07s: "ghc-modi said: defined at CabalHelper\\Licenses.hs:38:1" -0.07s: "ghc-modi said: or `Distribution.Simple.PackageIndex.lookupInstalledPackageId'," -0.07s: "ghc-modi said: imported from `Distribution.Simple.PackageIndex' at CabalHelper\\Licenses.hs:24:1-39" -0.07s: "ghc-modi said: " -0.07s: "ghc-modi said: CabalHelper\\Licenses.hs:74:10:" -0.07s: "ghc-modi said: Ambiguous occurrence `lookupInstalledPackageId'" -0.07s: "ghc-modi said: It could refer to either `CabalHelper.Licenses.lookupInstalledPackageId'," -0.07s: "ghc-modi said: defined at CabalHelper\\Licenses.hs:38:1" -0.07s: "ghc-modi said: or `Distribution.Simple.PackageIndex.lookupInstalledPackageId'," -0.07s: "ghc-modi said: imported from `Distribution.Simple.PackageIndex' at CabalHelper\\Licenses.hs:24:1-39" -0.012s: "ghc-modi said: ghc-mod: readCreateProcess: C:\\stack_root\\snapshots\\48375d44\\libexec\\cabal-helper-wrapper.exe \"--with-ghc=ghc\" \"--with-ghc-pkg=ghc-pkg\" \"--with-cabal=cabal\" \"C:\\\\Users\\\\Tyrone\\\\MyProjects\\\\hello-haskell\" \"C:\\\\Users\\\\Tyrone\\\\MyProjects\\\\hello-haskell\\\\dist\" \"package-db-stack\" \"entrypoints\" \"source-dirs\" \"ghc-options\" \"ghc-src-options\" \"ghc-pkg-options\" \"ghc-merged-pkg-options\" \"ghc-lang-options\" \"licenses\" \"flags\" \"config-flags\" \"non-default-config-flags\" \"compiler-version\" (exit 1): failed" -0.001s: "ghc-modi for C:\\Users\\Tyrone\\MyProjects\\hello-haskell ended with 1" -0.001s: "ghc-modi for C:\\Users\\Tyrone\\MyProjects\\hello-haskell ended with 1" -0.001s: "Running ghc-modi command unmap-file","C:\\Users\\Tyrone\\MyProjects\\hello-haskell\\src\\Main.hs" 0s: {"name":"ghc-modi crashed"} ghc-modi crashed at module.exports.Util.mkError (file:///C:/Users/Tyrone/.atom/packages/haskell-ghc-mod/lib/util.coffee:225:15) at ChildProcess.exitCallback (file:///C:/Users/Tyrone/.atom/packages/haskell-ghc-mod/lib/ghc-mod/interactive-process.coffee:77:20) at emitTwo (events.js:92:20) at ChildProcess.emit (events.js:172:7) at Process.ChildProcess._handle.onexit (internal/child_process.js:200:12)

命令

-2:22.4.0 core:copy (atom-text-editor.editor.is-focused)

配置

json { "core": { "automaticallyUpdate": false, "themes": [ "atom-light-ui", "atom-light-syntax" ] } }

已安装的软件包

```咖啡

用户自动完成-haskell，v0.6.6 haskell-ghc-mod，v1.17.2 ide-haskell，v1.8.1 ide-haskell-cabal，v1.6.4 ide-haskell-repl，v0.1.0 language-haskell，v1.9.7

开发没有开发包```*

我注意到我的电脑上有 3 套 ghc-mod.exe、ghc-modi.exe 等。我怀疑第一个是用堆栈创建的。它在

c:\users\myname\appdata\roaming\local\bin

我认为第二个是用 cabal 创建的，在

c:\users\myname\appdata\roaming\cabal\bin

第三个我怀疑是用堆栈创建的。它在

C:\stack_root\snapshots\48375d44\bin

. 目前我的 PATH 指向所有 3 个，但是我已在 2 个文件夹中重命名 ghc-modi.exe 和 ghc-mod.exe，并在 ~\roaming\cabal\bin 中保持版本 5.6.0.0 不变。整个事情有点令人困惑，我怀疑没有必要。我需要所有 3 个版本吗？我怎样才能清理它？

我浏览了有关如何使用其他模块的自动完成单词和功能创建 vim 环境的教程。在我更改之前创建的模块中的某些内容之前，这很好。在其他文件中，这些更改是不可见的，vim 会自动完成不再存在的单词和函数，并且对新函数没有帮助。

有没有办法解决这个问题并在实际打开的文件中更新 ghc-mod 数据？