UnprocessableEntity from 'POST https://api.github.com/repos/myorganization/myproject/actions-runners/registration'

Describe the bug

1. Run Create registration token method of github API
2. Pass token from the response to config.sh
3. Runner authentication fails with message

Http response code: UnprocessableEntity from 'POST https://api.github.com/repos/myorganization/myproject/actions-runners/registration'
{"message":"Validation Failed","documentation_url":"https://developer.github.com/v3"}
Response status code does not indicate success: 422 (Unprocessable Entity).
An error occurred: Not configured

This error does not reproduce if I push the button Add runner from project settings before any API calls. After pushing this button runner authentication works pretty well event with tokens generated with API. For me it looks like this button also changes some flag in project settings.

To Reproduce Steps to reproduce the behavior:

1. Create a new repo
2. Call the rest api to create a registration token for a new runner
3. Use that token with config.sh in to setup and run a new runner in the recently created repo.
4. The error will be given.

Expected behavior I would expect to be able to do the above steps without having to manually go into the interface first and click the “Add Runner” button in the repo settings.

Runner Version and Platform

Any version

OS of the machine running the runner? OSX/Windows/Linux/… Any OS

Here is a thread in the community with the exact same issue: https://github.community/t5/GitHub-Actions/Self-hosted-runners-API-Unprocessable-Entity/td-p/47098

[timharris777]

@tpinniger, adding you to this issue as you will be interested when it’s fixed.

[joshmgross]

👋 This issue should now be fixed. Runner registration should now work correctly for new repositories that have not used Actions yet or created any workflows.

Thank you for finding this issue.