dry-rb/dry-validation

Uninitialized constant Dry::Validation::Messages::Resolver

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#742 opened on Oct 22, 2025

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Description

Describe the bug

Sometimes uninitialized constant Dry::Validation::Messages::Resolver error occurs in production sites. It originates from this line

Restarting the server solves the issue.

To Reproduce

Not easy to reproduce

My environment

  • Affects my production application: YES
  • Ruby version: 3.3.5
  • OS: Ubuntu 24.04.3
  • Dry Validation Version: 1.11.1
  • Zeitwerk Version: 2.7.2

Contributor guide

Research direction
Investigate the constant resolution failure in Dry::Validation::Messages::Resolver during production runtime, focusing on Zeitwerk autoloading and Ruby constant lookup.
Tech stack
ruby
Domain
backend
Issue type
Bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
Half day
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Mostly clear
Prerequisites
RubyZeitwerk
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
60