const CHANNEL_EXISTS = new Error ( 'Attempting to open a channel that already exists -- use a different nonce' ) ; const CHANNEL_MISSING = new Error ( 'Channel does not exist' ) ; const STATE_NOT_SIGNED = new Error ( 'State not signed by mover' ) ; const INVALID_TRANSITION = new Error ( 'Invalid transition' ) ; const INVALID_STATE_UNKNOWN_REASON = new Error ( 'State is not valid, but the reason is not known' ) ; const NOT_OUR_TURN = new Error ( 'Not our turn to create a state' ) ; const VALUE_LOST = new Error ( 'Value not preserved' ) ; export default { CHANNEL_EXISTS , STATE_NOT_SIGNED , CHANNEL_MISSING , INVALID_TRANSITION , INVALID_STATE_UNKNOWN_REASON , NOT_OUR_TURN , VALUE_LOST , } ;