mmal: mmal_vc_component_create: failed to create component 'vc.ril.camera' (1:ENOMEM)
mmal: mmal_component_create_core: could not create component 'vc.ril.camera' (1)
pygame 1.9.6
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Traceback (most recent call last):
  File "/home/pi/.virtualenvs/cv/lib/python3.7/site-packages/picamera/camera.py", line 456, in _init_camera
    self._camera = mo.MMALCamera()
  File "/home/pi/.virtualenvs/cv/lib/python3.7/site-packages/picamera/mmalobj.py", line 2279, in __init__
    super(MMALCamera, self).__init__()
  File "/home/pi/.virtualenvs/cv/lib/python3.7/site-packages/picamera/mmalobj.py", line 633, in __init__
    prefix="Failed to create MMAL component %s" % self.component_type)
  File "/home/pi/.virtualenvs/cv/lib/python3.7/site-packages/picamera/exc.py", line 184, in mmal_check
    raise PiCameraMMALError(status, prefix)
picamera.exc.PiCameraMMALError: Failed to create MMAL component b'vc.ril.camera': Out of memory

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/pi/SecurityCamera/main.py", line 23, in <module>
    video_camera = VideoCamera(flip=True) # creates a camera object, flip vertically
  File "/home/pi/SecurityCamera/camera.py", line 18, in __init__
    self.vs, self.CamObj, self.rawCapture  = PiVideoStream().start()
  File "/home/pi/.virtualenvs/cv/lib/python3.7/site-packages/imutils/video/pivideostream.py", line 10, in __init__
    self.camera = PiCamera()
  File "/home/pi/.virtualenvs/cv/lib/python3.7/site-packages/picamera/camera.py", line 431, in __init__
    self._init_camera(camera_num, stereo_mode, stereo_decimate)
  File "/home/pi/.virtualenvs/cv/lib/python3.7/site-packages/picamera/camera.py", line 460, in _init_camera
    "Camera is not enabled. Try running 'sudo raspi-config' "
picamera.exc.PiCameraError: Camera is not enabled. Try running 'sudo raspi-config' and ensure that the camera has been enabled.
Exception ignored in: <function VideoCamera.__del__ at 0x6a638660>
Traceback (most recent call last):
  File "/home/pi/SecurityCamera/camera.py", line 24, in __del__
    self.vs.stop()
AttributeError: 'VideoCamera' object has no attribute 'vs'