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Code Issues Projects Releases Wiki Activity

Add some troubleshooting notes. (#418)

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Carlo Hamalainen 2020-02-10 17:00:39 +08:00 committed by GitHub
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docs/Setup.md
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@ -54,8 +54,21 @@ with the following content:
cradle: {cabal: {component: "mylibrary"}}
```
If you are using stack, find the list of names you can use:
$ stack ide targets
mypackage:lib
mypackage:exe:mypackage-exe
mypackage:test:mypackage-test
and create a `hie.yaml` file as follows:
{stack: {component: "mypackage:lib"}}
## ghc: readCreateProcess: does not exist
On Linux: try `stack exec ghcide`` instead of `ghcide` directly.
I was getting this in Windows: `ghcide.exe: ghc: readCreateProcess: does not exist (No such file or directory)`
And we figured a hack around for this:
@ -69,7 +82,21 @@ Since I use stack. Required if you don't have a `ghc` on your path.
## Could not find module ...
Try adding an explicit hie.yaml file and see if that helps.
Try adding an explicit `hie.yaml` file and see if that helps.
## Ambiguous main module
```console
$ stack exec ghcide
...
ghcide: CradleError (ExitFailure 1) ["Failed to parse result of calling stack","","* * * * * * * *","The main module to load is ambiguous. Candidates are: ","1. Package `mypackage' component mypackage:exe:mypackage-exe with main-is file: /home/user/mypackage/app/Main.hs","2. Package `mypackage' component mypackage:exe:otherbin-exe with main-is file: /home/user/mypackage/app/otherbin.hs","You can specify which one to pick by: "," * Specifying targets to stack ghci e.g. stack ghci mypackage:exe:mypackage-exe"," * Specifying what the main is e.g. stack ghci --main-is mypackage:exe:mypackage-exe"," * Choosing from the candidate above [1..2]","* * * * * * * *","","<stdin>: hGetLine: end of file"]
```
Add a `hie.yaml` file to specify the module, e.g.
cradle: {stack: {component: "mypackage:exe:mypackage-exe"}}
## Works in `ghcide` but not my editor