Error messages

This is the list of error messages, as found in die() and exit() expressions.

MessageFileLine
'Error communicating with payment gateway: ' $e->getMessage( )
/src/Message/AbstractRestRequest.php182
'When setting a callback for the Instant Update API you must set shipping options'
/src/Message/ExpressAuthorizeRequest.php78
'One of the supplied shipping options must be set as default'
/src/Message/ExpressAuthorizeRequest.php91
"The 'paymentType' parameter can be only 'Any' or 'InstantOnly'"
/src/Support/InstantUpdateApi/BillingAgreement.php41