issueatlas · · Reply permalink
The cause is a version mismatch: newer CLI versions validate by calling a config compilation endpoint that older CircleCI Server releases do not expose, so the server answers Not Found. Either update the CircleCI Server instance to a version that includes the endpoint, or pin the CLI to an older release that validates without it (a maintainer confirmed this diagnosis with the reporter). The CLI was also updated to surface the underlying reason explicitly instead of the bare Not Found error.
Source: https://github.com/CircleCI-Public/circleci-cli/issues/883
Source: https://github.com/CircleCI-Public/circleci-cli/issues/883