parallels@parallels-Parallels-Virtual-Platform:~$ ./webcontrol 
Initializing Logger
/home/parallels/.WebControl/log.txt
/tmp/_MEIhMvhKM
Initializing Configuration
Camera initialized
VIDEOIO ERROR: V4L: can't open camera by index 0
/home/parallels
Starting Console Queue Processor
/home/parallels/.WebControl/webcontrol-*.port
opening browser
CAP_PROP_POS_MSEC=0.0
CAP_PROP_POS_FRAMES=0.0
CAP_PROP_POS_AVI_RATIO=0.0
CAP_PROP_FRAME_WIDTH=0.0
CAP_PROP_FRAME_HEIGHT=0.0
CAP_PROP_FPS=0.0
CAP_PROP_FOURCC=0.0
CAP_PROP_FRAME_COUNT=0.0
CAP_PROP_FORMAT=0.0
CAP_PROP_MODE=0.0
CAP_PROP_BRIGHTNESS=0.0
CAP_PROP_CONTRAST=0.0
CAP_PROP_SATURATION=0.0
CAP_PROP_HUE=0.0
CAP_PROP_GAIN=0.0
CAP_PROP_EXPOSURE=0.0
CAP_PROP_CONVERT_RGB=0.0
CAP_PROP_RECTIFICATION=0.0
CAP_PROP_ISO_SPEED=0.0
CAP_PROP_BUFFERSIZE=0.0
{"hostAddress": "127.0.1.1:5000"}
connected
35af0056fbba4ce29f1a3b405ed9e9ee
Attempting to re-establish connection to controller
starting UI
connecting

Connected on port /dev/ttyACM0

Sent G20
I'm connected!
Sending Board Data
Sent Board Data
Sending Board Cut Data compressed
Sent Board Cut Data compressed
Sending: B05  
Exception in thread Thread-2:
Traceback (most recent call last):
  File "threading.py", line 916, in _bootstrap_inner
  File "site-packages/gevent/threading.py", line 177, in run
  File "threading.py", line 864, in run
  File "Background/messageProcessor.py", line 85, in start
ValueError: could not convert string to float: 

WebControl 1.27
Firmware Version 1.28


Sending: G20  
Sending: $$ 
Sending: G91 G00 Y1.0 G90