A community-driven collection of documentation for Haskell error messages and warnings (by haskellfoundation)

Error-message-index Alternatives

Similar projects and alternatives to error-message-index

NOTE: The number of mentions on this list indicates mentions on common posts plus user suggested alternatives. Hence, a higher number means a better error-message-index alternative or higher similarity.

error-message-index reviews and mentions

Posts with mentions or reviews of error-message-index. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2023-03-07.
  • There is No “Tooling Issue” in Haskell
    6 projects | | 7 Mar 2023
    Significant effort is going into resolving this issue right now and things should be much improved in 9.6. We already have which catalogues many errors with descriptions and examples. The asspciated error codes will be added to all errors once 9.6 is release for easy reference.
    6 projects | | 7 Mar 2023
    There is already an effort underway to provide examples and descriptions based on these at Community contributions are very welcome to that site!
  • [ANN] GHCup- released
    4 projects | | 13 Jan 2023
    We're also delighted to announce integration with, which already has a couple of GHCup codes documented, e.g.
  • [ANN] First release candidate for stack-2.9.3
    5 projects | | 22 Nov 2022
    To support the Haskell Foundation’s Haskell Error Index initiative, all Stack error messages generated by Stack itself begin with an unique code in the form [S-nnnn], where nnnn is a four-digit number.
  • What prevents Haskell from having good error messages?
    4 projects | | 27 Oct 2022
    I don't think the resolved issues are actually ones about error messages. They largely seem to be meta issues about the project. As far as I know nothing that project has done has made it into a released GHC yet, but GHC 9.6 will have unique error codes for each error pointing to an entry on Both the codes and the website are achievements of that project, specifically under its error-messages-index incarnation. If you'd like to contribute you may like to read or post a message introducing yourself on
  • A note from our sponsor - SonarQube | 28 Mar 2023
    Your projects are multi-language. So is SonarQube analysis. Find Bugs, Vulnerabilities, Security Hotspots, and Code Smells so you can release quality code every time. Get started analyzing your projects today for free. Learn more →


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