[英]Error: module ‘main:Course’ is defined in multiple files: src/Course.hs
I'm trying to start working on https://github.com/system-f/fp-course .我正在尝试开始研究https://github.com/system-f/fp-course 。 After running
stack ghci
, it finishes with:运行
stack ghci
后,它以:
...
[51 of 51] Compiling Test.Loader ( src/Test/Loader.hs, interpreted )
Ok, 51 modules loaded.
Loaded GHCi configuration from /home/lpied/haskell/fp-course/.ghci
<no location info>: error:
module ‘main:Course’ is defined in multiple files: src/Course.hs
src/Course.hs
Failed, 51 modules loaded.
Loaded GHCi configuration from /tmp/haskell-stack-ghci/75d10d48/ghci-script
Any idea why it's complaining that the module is defined in the same file ( src/Course.hs
)?知道为什么它抱怨模块是在同一个文件(
src/Course.hs
)中定义的吗?
Can you try using stack exec ghci
instead?您可以尝试改用
stack exec ghci
吗? stack ghci
is probably recognizing the src
directory and adding -isrc
to the ghci
command line, and then the .ghci
file in the course root directory is also adding -isrc
to the ghci
command line. stack ghci
大概是在识别src
目录并在ghci
命令行中添加-isrc
,然后课程根目录下的.ghci
文件也在ghci
命令行中添加-isrc
。 GHC probably doesn't de-duplicate its search path, so it acts like you have two separate directories which both happen to be named src
. GHC 可能不会删除其搜索路径的重复项,因此它就像您有两个单独的目录一样,它们恰好都被命名为
src
。
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