yesodweb / yesodweb/persistent
Build failure in persistent with mtl-2.3
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- Dominant language
- Haskell
- Stars
- 486
- Forks
- 306
- PR merge metrics
- No merged PRs in 30d
Description
Building library for persistent-2.14.0.0..
<snip>
Database/Persist/Sql/Run.hs:8:43: error:
Module ‘Control.Monad.Reader’ does not export ‘void’
|
8 | import Control.Monad.Reader (MonadReader, void)
| ^^^^
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start with Database/Persist/Sql/Run.hs at the Control.Monad.Reader import shown in the build error, then check the persistent package's mtl-2.3 compatibility. Rebuild persistent-2.14.0.0 with mtl-2.3; done means the library builds without the reported missing-void export error.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- haskell
- Domain
- databases
- Issue type
- Bug
- Difficulty
- 2/5
- Estimated time
- 1-3 hours
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100