Error3 reports
Fix IncompatibleConstraintsError
in Poetry
✅ Solution
IncompatibleConstraintsError in Poetry often arises from conflicting version requirements between packages or overly restrictive version constraints you've defined. To resolve, try relaxing version constraints in your pyproject.toml file (e.g., use wider ranges like `^1.0` instead of `==1.0`) and then running `poetry update` to re-evaluate dependencies. If that doesn't work, `poetry show --tree` can help identify the source of the conflict for targeted updates.
Related Issues
Real GitHub issues where developers encountered this error:
Timeline
First reported:May 14, 2025
Last reported:Nov 25, 2025