Haskell Stack的可执行分析和ghc选项无法构建

Question

我正在尝试调试Haskell项目中的性能问题，但是我无法获得要编译的分析，因此我可以通过+RTS -p命令行参数来使用它。

在我的.cabal文件中，GHC的选项是：

ghc-options:         -threaded -rtsopts -with-rtsopts=-N -Wall -Werror

我正在尝试建造它：

stack build --executable-profiling --library-profiling --ghc-options="-fprof-auto -rtsopts"

其结果是：

While constructing the BuildPlan the following exceptions were encountered:

--  Failure when adding dependencies:    
      base: needed (>=2 && <5), not present in build plan (latest applicable is 4.9.0.0)
      mtl: needed (>=2.1 && <2.3), couldn't resolve its dependencies
      random: needed (-any), couldn't resolve its dependencies
      transformers: needed (>=0.3 && <0.6), couldn't resolve its dependencies
      transformers-compat: needed (>=0.4 && <0.6), couldn't resolve its dependencies
    needed for package: MonadRandom-0.4.2.3

--  Failure when adding dependencies:    
      base: needed (>=4 && <5), not present in build plan (latest applicable is 4.9.0.0)
      stm: needed (>=2.0 && <2.5), couldn't resolve its dependencies
      transformers: needed (>=0.2 && <0.6), couldn't resolve its dependencies
    needed for package: StateVar-1.1.0.4
<snipped large log>

即使只尝试使用stack build --executable-profiling，也会导致相同的错误。

作为参考，我的库依赖项是：

   build-depends:       base >= 4.7 && < 5
                     , aeson
                     , servant
                     , servant-server 
                     , wai
                     , warp
                     , either
                     , bytestring
                     , transformers
                     , postgresql-simple
                     , amazonka
                     , amazonka-sqs
                     , lens
                     , text
                     , time
                     , resource-pool

我如何解决这个问题，这样我就可以用堆栈编译我的项目，并内置分析以供+RTS -p使用。

Answer 1

“堆栈主管--哪个ghc”说什么？如果您的ghc是全局安装的，它可能缺少分析库。如果是这样，“堆栈设置-无系统-ghc”+“堆栈构建-无系统-ghc”。

您的stack.yaml配置是什么？如果您已经设置了"ghc-*“的解析器，那么它将无法工作，除非您在”附加-deps“中指定所有依赖项的版本。通常您会希望使用堆栈快照- https://www.stackage.org/