A vibratory meter including a multi-channel flow tube, the vibratory meter comprising: a meter electronics; and a meter assembly communicatively coupled to the meter electronics, the meter assembly comprising: the multi-channel flow tube (130, 330, 430, 530) comprising two or more fluid channels (132, 332, 432, 532) surrounded by a tube wall (134, 334, 434, 534), wherein the two or more fluid channels (132, 332, 432, 532) and tube wall (134, 334, 434, 534) comprise a single integral structure; and a driver coupled to the multi-channel flow tube (130, 330, 430, 530), the driver being configured to vibrate the multi-channel flow tube (130, 330, 430, 530); wherein the two or more fluid channels (132, 332, 432, 532) and tube wall (134, 334, 434, 534) are configured to deform in a same direction as the single integral structure in response to a drive signal applied to the driver; and wherein the meter electronics is configured to: measure a density of the fluid with the multi-channel flow tube based on a frequency of the vibration of the multi-channel flow tube; characterized by: the meter electronics is further configured to: determine a gas void fraction using the measured density; determine a flow rate error from a predetermined correlation between the flow rate error and the gas void fraction; and compensate the flow rate measurement using the flow rate error. a meter electronics; and a meter assembly communicatively coupled to the meter electronics, the meter assembly comprising: the multi-channel flow tube (130, 330, 430, 530) comprising two or more fluid channels (132, 332, 432, 532) surrounded by a tube wall (134, 334, 434, 534), wherein the two or more fluid channels (132, 332, 432, 532) and tube wall (134, 334, 434, 534) comprise a single integral structure; and a driver coupled to the multi-channel flow tube (130, 330, 430, 530), the driver being configured to vibrate the multi-channel flow tube (130, 330, 430, 530); wherein the two or more fluid channels (132, 332, 432, 532) and tube wall (134, 334, 434, 534) are configured to deform in a same direction as the single integral structure in response to a drive signal applied to the driver; and wherein the meter electronics is configured to: measure a density of the fluid with the multi-channel flow tube based on a frequency of the vibration of the multi-channel flow tube; the multi-channel flow tube (130, 330, 430, 530) comprising two or more fluid channels (132, 332, 432, 532) surrounded by a tube wall (134, 334, 434, 534), wherein the two or more fluid channels (132, 332, 432, 532) and tube wall (134, 334, 434, 534) comprise a single integral structure; and a driver coupled to the multi-channel flow tube (130, 330, 430, 530), the driver being configured to vibrate the multi-channel flow tube (130, 330, 430, 530); wherein the two or more fluid channels (132, 332, 432, 532) and tube wall (134, 334, 434, 534) are configured to deform in a same direction as the single integral structure in response to a drive signal applied to the driver; and wherein the meter electronics is configured to: measure a density of the fluid with the multi-channel flow tube based on a frequency of the vibration of the multi-channel flow tube; measure a density of the fluid with the multi-channel flow tube based on a frequency of the vibration of the multi-channel flow tube; determine a gas void fraction using the measured density; determine a flow rate error from a predetermined correlation between the flow rate error and the gas void fraction; and compensate the flow rate measurement using the flow rate error.