[Fireworks AI docs, Training troubleshooting]: The invalid id error on firectl deployment commands means the account ID is not set. Configure the account ID in the firectl config or environment before running deployment commands, then retry. Verify with firectl deployment list that the account resolves before creating deployments.

Context: firectl commands such as firectl deployment create and firectl deployment list fail with: invalid id: id must be at least 1 character long. Per the Fireworks docs this typically means the account ID is not properly configured.