Failed to get first connected camera

[mankinb]

Hi all,

I'm trying to use this driver to publish a live image stream from a FLIR Blackfly S USB to rqt_image_view. I know this was based on FlyCapture2, but I have seen many places online that it has been successfully used with Blackfly.
I have Spinnaker SDK already installed, and I can run SpinView as sudo.

I'm using Ubuntu 18.04 and ROS Melodic.

When I try: roslaunch pointgrey_camera_driver camera.launch, I receive:

SUMMARY

PARAMETERS

• /camera/camera_nodelet/frame_id: camera
• /camera/camera_nodelet/serial: 0
• /rosdistro: melodic
• /rosversion: 1.14.11

NODES
/camera/
camera_nodelet (nodelet/nodelet)
camera_nodelet_manager (nodelet/nodelet)
image_proc_debayer (nodelet/nodelet)

ROS_MASTER_URI=http://localhost:11311

process[camera/camera_nodelet_manager-1]: started with pid [15308]
process[camera/camera_nodelet-2]: started with pid [15309]
process[camera/image_proc_debayer-3]: started with pid [15310]
[ERROR] [1623434176.028826042]: Reconfigure Callback failed with error: PointGreyCamera::connect Failed to get first connected camera | FlyCapture2::ErrorType 19 Failed to get the camera from the index.

(and of course, no image stream is published to rqt_image_view).

Any help on this would be greatly appreciated.
Thanks in advance!