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Internal error message for cabal repl within project scope #10527

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philderbeast opened this issue Nov 5, 2024 · 2 comments · May be fixed by #10684
Open

Internal error message for cabal repl within project scope #10527

philderbeast opened this issue Nov 5, 2024 · 2 comments · May be fixed by #10684
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@philderbeast
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cabal-install: cmd/repl type: enhancement

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@philderbeast
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Describe the bug
I'm getting an "internal error" mentioning fake-package-0 for a, possibly common, omission of a project target when bringing up the REPL.

To Reproduce
With this, the haskell/cabal repository, at its root folder, do the following;

$ cabal repl
Error: [Cabal-7076]
Internal error when trying to open a repl for the package fake-package-0.
The package is not in the set of available targets for the project plan, which
would suggest an inconsistency between readTargetSelectors and resolveTargets.

We could say something like "Please provide a target from the packages or components of this project".
@OlegAlexander
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I just ran into this today. Yes, please consider adding an error message, like: "Please provide a target from the packages or components of this project" or "cabal repl at project scope detected. Please try cabal repl <target>".

@philderbeast
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To reproduce in this repository:

$ git rev-parse HEAD
4b2e5f03f1bbaa8b1afe32a5c390686507a175a1

$ cabal run cabal-install:exe:cabal -- repl
Warning: this is a debug build of cabal-install with assertions enabled.
Configuration is affected by the following files:
- cabal.project
Resolving dependencies...
Warning: this is a debug build of cabal-install with assertions enabled.
Configuration is affected by the following files:
- cabal.project
Error: [Cabal-7076]
Internal error when trying to open a repl for the package fake-package-0.
The package is not in the set of available targets for the project plan, which
would suggest an inconsistency between readTargetSelectors and resolveTargets.

@philderbeast philderbeast linked a pull request Dec 28, 2024 that will close this issue
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@philderbeast philderbeast self-assigned this Dec 28, 2024
@philderbeast philderbeast mentioned this issue Dec 29, 2024
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cabal-install: cmd/repl type: enhancement
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REPL command in project requires a target cabalism/cabal
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@philderbeast @ulysses4ever @OlegAlexander