Can't add dev dependency with `poetry add --dev` if [tool.poetry.dev-dependencies] doesn't exist

Here’s the command I’m running:

poetry add --dev mkdocs

  [KeyError]


add [-D|--dev] [--optional] [--allow-prereleases] [--dry-run] [--] <name> (<name>)…

Also tried poetry add mkdocs --dev, with the same result.

Using poetry 0.8.5 on Windows.

[sdispater]

This should be fixed in commit 2e36b03. This was made possible by changing the TOML library used by Poetry.

It will land in the next bugfix release.

[sdispater]

Release 0.11.3 is out!