poetry install fails on pre-release

[hixus]

• [ x] I am on the latest Poetry version.

• [ x] I have searched the issues of this repo and believe that this is not a duplicate.

• [ x] If an exception occurs when executing a command, I executed it again in debug mode (-vvv option).

• OS version and name: Debian 10

• Poetry version: 1.0.2

• Link of a Gist with the contents of your pyproject.toml file: https://gist.github.com/hixus/6e5c15869afed95e54b5e689c27b33b8

Issue

When I run poetry add cloudml-hypertune everything works but when ci-machine runs poetry install it fails with "Because model-xxx depends on cloudml-hypertune (^0.1.0-alpha.6) which doesn't match any versions, version solving failed."

Running poetry update cloudml-hypertune also installs latest pre-release version (0.1.0.dev6) correctly

[hixus]

Workaround in ci is to run poetry remove cloudml-hypertune && poetry install && poetry add --allow-prereleases cloudml-hypertune

[hixus]

Actually better solution is to use just {version = "*", allow-prereleases = true} Not sure if this is a issue with poetry old the cloudml-hypertune package. Poetry says Installing cloudml-hypertune (0.1.0.dev6) but in the pyproject.toml we get cloudml-hypertune = {version = "^0.1.0.dev6", allow-prereleases = true}

[abn]

Your linked pyproject.toml file has ^0.1.0-alpha.6 which is a nonexistant version. So, I'd imagine your CI tries to use the pyproject file to try find the version and fails.

[mkniewallner]

Closing, since it's a quite old issue that is most likely obsolete, and we didn't hear back from the author.

If you still reproduce the issue with recent versions of Poetry, feel free to reopen the issue.

[github-actions[bot]]

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