I have a RPi 3B with a Raspberry-pi Camera Module OV5647 sensor HD video Webcam 5MP 1080p mounted and working.
I am trying to get UV4L streaming working and have encountered a problem. UV4L driver is installed successfully, and the web server is running fine [sic]:
But when I try to make WebRTC connection, I am presented with the following:
Sorry, could not load the WebRTC extension for UV4L: either is not installed, or has been disabled, or the architecture is not supported.
UV4L is installed and driver is successfully loaded according to /var/log/syslog
Jul 27 09:28:26 raspberrypi uv4l_raspicam[149]: Starting UV4L Raspberry CSI Camera Driver: uv4l
Jul 27 09:28:26 raspberrypi uv4l_raspicam[149]: <notice> [core] Trying to load driver 'raspicam' from built-in drivers first...
Jul 27 09:28:26 raspberrypi uv4l_raspicam[149]: <warning> [core] Driver 'raspicam' not found
Jul 27 09:28:26 raspberrypi uv4l_raspicam[149]: <notice> [core] Trying to load driver 'raspicam' from external plug-in's instead...
Jul 27 09:28:26 raspberrypi systemd-udevd[205]: failed to execute '/lib/udev/mtp-probe' 'mtp-probe /sys/devices/platform/soc/3f980000.usb/usb1/1-1/1-1.2 1 4': No such file or directory
Jul 27 09:28:26 raspberrypi keyboard-setup[151]: Setting preliminary keymap...done.
Jul 27 09:28:26 raspberrypi systemd[1]: Started LSB: Set preliminary keymap.
Jul 27 09:28:26 raspberrypi systemd[1]: Starting Show Plymouth Boot Screen...
Jul 27 09:28:26 raspberrypi systemd[1]: Starting Remount Root and Kernel File Systems...
Jul 27 09:28:26 raspberrypi uv4l_raspicam[149]: <notice> [driver] Dual Raspicam & TC358743 Video4Linux2 Driver v1.9.59 built Nov 11 2017
Jul 27 09:28:26 raspberrypi uv4l_raspicam[149]: <notice> [driver] Detected camera ov5647
Jul 27 09:28:26 raspberrypi uv4l_raspicam[149]: <notice> [driver] Selected format: 1920x1080, encoding: mjpeg, JPEG Video Capture
Jul 27 09:28:26 raspberrypi uv4l_raspicam[149]: <notice> [driver] Framerate max. 30 fps
Jul 27 09:28:26 raspberrypi uv4l_raspicam[149]: <notice> [driver] ROI: 0, 0, 1, 1
Jul 27 09:28:26 raspberrypi uv4l_raspicam[149]: <notice> [core] Device detected!
Furthermore, my hardware should support:
cat /proc/cpuinfo | grep BCM
Hardware : BCM2835
and in /etc/uv4l/uv4l-raspicam.conf
server-option = --enable-webrtc=yes
server-option = --enable-webrtc-datachannels=yes
server-option = --webrtc-datachannel-label=uv4l
server-option = --webrtc-datachannel-socket=/tmp/uv4l.socket
server-option = --enable-webrtc-video=yes`
I am clearly missing something. Any guidance is appreciated!

