Solve poetry problem: configuration is invalid properties group was unexpected

Here is how I solve my poetry python configuration problem, where Additional properties are not allowed (group was unexpected) issue

Background problem

New poetry (I believe from version 1.2) introduce a “group” dependecy

Which causing this error if you have version < 1.2

You can spot this in your pyproject.toml, if you have something like [tool.poetry..group..]

Solution

Upgrade your poetry to recent version or at least 1.2 (better communicate with your team). (Install and use that version)

Or another tips, if you’d like to stay on your current version (NOT UPDATING): Specifically, change [tool.poetry.group.dev.dependencies] to [tool.poetry.dev-dependencies