If you are using a context in your workflow, you may encounter the following message.

If you've referred to another article, but that doesn't resolve the issue, please additionally check the following point.

This issue occurs when a project record falls out of sync with reality, which can happen when an organization is transferred or recreated with a new external VCS ID. If this is the case, we need to forcibly sync the record. This can be done by our CircleCI support team, so please contact us.