MagicMirror Forum

Antagonist

Everything works. I’m just stupid as hell and didn’t add the classes to the other modules.

Antagonist

@Blauenfeldt I already did this:

Antagonist

@sdetweil unfortunately there is nothing which would help.
Has anybody else an idea?

Antagonist

@sdetweil Ok but where can I adjust the path to link it properly with opencv? And thank you, you have been a great help so far!

Antagonist

@sdetweil I have Python version 3.7.3.
And I have OpenCV 4.1.1 installed:

(cv) pi@raspberrypi:~ $ python
Python 3.7.3 (default, Apr  3 2019, 05:39:12) 
[GCC 8.2.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import cv2
>>> cv2.__version__
'4.1.1'

Thanks for your help!

Antagonist

@sdetweil Yes, I think I installed all dependencies accordingly and followed this instruction for opencv.

Antagonist

@Blauenfeldt Ahh that doesn’t sound very good. I’ve installed python in an virtual environment. Do you know a solution for this problem? Thanks a lot!

Antagonist

Error log:

SyntaxError: Unexpected token T in JSON at position 0
    at JSON.parse (<anonymous>)
    at PythonShell.asJson (/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/node_modules/python-shell/index.js:358:21)
    at /home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/node_modules/python-shell/index.js:310:42
    at Array.forEach (<anonymous>)
    at PythonShell.recieveInternal (/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/node_modules/python-shell/index.js:306:15)
    at PythonShell.receiveStderr (/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/node_modules/python-shell/index.js:290:21)
    at Socket.<anonymous> (/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/node_modules/python-shell/index.js:108:18)
    at Socket.emit (events.js:182:13)
    at addChunk (_stream_readable.js:279:12)
    at readableAddChunk (_stream_readable.js:260:13)
{ Error: ModuleNotFoundError: No module named 'cv2'
    at PythonShell.parseError (/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/node_modules/python-shell/index.js:246:21)
    at terminateIfNeeded (/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/node_modules/python-shell/index.js:129:32)
    at ChildProcess.<anonymous> (/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/node_modules/python-shell/index.js:121:13)
    at ChildProcess.emit (events.js:182:13)
    at Process.ChildProcess._handle.onexit (internal/child_process.js:237:12)
    ----- Python Traceback -----
    File "modules/MMM-Face-Reco-DNN/tools/facerecognition.py", line 5, in <module>
      from stream import VideoStream
    File "/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/tools/stream.py", line 2, in <module>
      from webcam import WebcamVideoStream
    File "/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/tools/webcam.py", line 3, in <module>
      import cv2
  traceback:
   'Traceback (most recent call last):\n  File "modules/MMM-Face-Reco-DNN/tools/facerecognition.py", line 5, in <module>\n    from stream import VideoStream\n  File "/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/tools/stream.py", line 2, in <module>\n    from webcam import WebcamVideoStream\n  File "/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/tools/webcam.py", line 3, in <module>\n    import cv2\nModuleNotFoundError: No module named \'cv2\'\n',
  executable: 'python3',
  options: null,
  script: 'modules/MMM-Face-Reco-DNN/tools/facerecognition.py',
  args:
   [ '--cascade=modules/MMM-Face-Reco-DNN/tools/haarcascade_frontalface_default.xml',
     '--encodings=modules/MMM-Face-Reco-DNN/tools/encodings.pickle',
     '--usePiCamera=1',
     '--method=dnn',
     '--detectionMethod=hog',
     '--interval=2000',
     '--output=0',
     '--extendDataset=False',
     '--dataset=modules/MMM-Face-Reco-DNN/dataset/' ],
  exitCode: 1 }
SyntaxError: Unexpected token T in JSON at position 0
    at JSON.parse (<anonymous>)
    at PythonShell.asJson (/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/node_modules/python-shell/index.js:358:21)
    at /home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/node_modules/python-shell/index.js:310:42
    at Array.forEach (<anonymous>)
    at PythonShell.recieveInternal (/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/node_modules/python-shell/index.js:306:15)
    at PythonShell.receiveStderr (/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/node_modules/python-shell/index.js:290:21)
    at Socket.<anonymous> (/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/node_modules/python-shell/index.js:108:18)
    at Socket.emit (events.js:182:13)
    at addChunk (_stream_readable.js:279:12)
    at readableAddChunk (_stream_readable.js:260:13)
{ Error: ModuleNotFoundError: No module named 'cv2'
    at PythonShell.parseError (/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/node_modules/python-shell/index.js:246:21)
    at terminateIfNeeded (/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/node_modules/python-shell/index.js:129:32)
    at ChildProcess.<anonymous> (/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/node_modules/python-shell/index.js:121:13)
    at ChildProcess.emit (events.js:182:13)
    at Process.ChildProcess._handle.onexit (internal/child_process.js:237:12)
    ----- Python Traceback -----
    File "modules/MMM-Face-Reco-DNN/tools/facerecognition.py", line 5, in <module>
      from stream import VideoStream
    File "/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/tools/stream.py", line 2, in <module>
      from webcam import WebcamVideoStream
    File "/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/tools/webcam.py", line 3, in <module>
      import cv2
  traceback:
   'Traceback (most recent call last):\n  File "modules/MMM-Face-Reco-DNN/tools/facerecognition.py", line 5, in <module>\n    from stream import VideoStream\n  File "/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/tools/stream.py", line 2, in <module>\n    from webcam import WebcamVideoStream\n  File "/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/tools/webcam.py", line 3, in <module>\n    import cv2\nModuleNotFoundError: No module named \'cv2\'\n',
  executable: 'python3',
  options: null,
  script: 'modules/MMM-Face-Reco-DNN/tools/facerecognition.py',
  args:
   [ '--cascade=modules/MMM-Face-Reco-DNN/tools/haarcascade_frontalface_default.xml',
     '--encodings=modules/MMM-Face-Reco-DNN/tools/encodings.pickle',
     '--usePiCamera=1',
     '--method=dnn',
     '--detectionMethod=hog',
     '--interval=2000',
     '--output=0',
     '--extendDataset=False',
     '--dataset=modules/MMM-Face-Reco-DNN/dataset/' ],
  exitCode: 1 }
TypeError: Cannot read property 'childProcess' of undefined
    at Class.destroy (/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/node_helper.js:84:18)
    at Class.python_stop (/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/node_helper.js:79:10)
    at Class.stop (/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/node_helper.js:102:10)
    at App.stop (/home/pi/MagicMirror/js/app.js:247:16)
    at process.App.process.on (/home/pi/MagicMirror/js/app.js:261:8)
    at process.emit (events.js:182:13)
SyntaxError: Unexpected token T in JSON at position 0
    at JSON.parse (<anonymous>)
    at PythonShell.asJson (/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/node_modules/python-shell/index.js:358:21)
    at /home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/node_modules/python-shell/index.js:310:42
    at Array.forEach (<anonymous>)
    at PythonShell.recieveInternal (/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/node_modules/python-shell/index.js:306:15)
    at PythonShell.receiveStderr (/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/node_modules/python-shell/index.js:290:21)
    at Socket.<anonymous> (/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/node_modules/python-shell/index.js:108:18)
    at Socket.emit (events.js:182:13)
    at addChunk (_stream_readable.js:279:12)
    at readableAddChunk (_stream_readable.js:260:13)
{ Error: ModuleNotFoundError: No module named 'cv2'
    at PythonShell.parseError (/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/node_modules/python-shell/index.js:246:21)
    at terminateIfNeeded (/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/node_modules/python-shell/index.js:129:32)
    at ChildProcess.<anonymous> (/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/node_modules/python-shell/index.js:121:13)
    at ChildProcess.emit (events.js:182:13)
    at Process.ChildProcess._handle.onexit (internal/child_process.js:237:12)
    ----- Python Traceback -----
    File "modules/MMM-Face-Reco-DNN/tools/facerecognition.py", line 5, in <module>
      from stream import VideoStream
    File "/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/tools/stream.py", line 2, in <module>
      from webcam import WebcamVideoStream
    File "/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/tools/webcam.py", line 3, in <module>
      import cv2
  traceback:
   'Traceback (most recent call last):\n  File "modules/MMM-Face-Reco-DNN/tools/facerecognition.py", line 5, in <module>\n    from stream import VideoStream\n  File "/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/tools/stream.py", line 2, in <module>\n    from webcam import WebcamVideoStream\n  File "/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/tools/webcam.py", line 3, in <module>\n    import cv2\nModuleNotFoundError: No module named \'cv2\'\n',
  executable: 'python3',
  options: null,
  script: 'modules/MMM-Face-Reco-DNN/tools/facerecognition.py',
  args:
   [ '--cascade=modules/MMM-Face-Reco-DNN/tools/haarcascade_frontalface_default.xml',
     '--encodings=modules/MMM-Face-Reco-DNN/tools/encodings.pickle',
     '--usePiCamera=1',
     '--method=dnn',
     '--detectionMethod=hog',
     '--interval=2000',
     '--output=0',
     '--extendDataset=False',
     '--dataset=modules/MMM-Face-Reco-DNN/dataset/' ],
  exitCode: 1 }
TypeError: Cannot read property 'childProcess' of undefined
    at Class.destroy (/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/node_helper.js:84:18)
    at Class.python_stop (/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/node_helper.js:79:10)
    at Class.stop (/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/node_helper.js:102:10)
    at App.stop (/home/pi/MagicMirror/js/app.js:247:16)
    at App.app.on (/home/pi/MagicMirror/js/electron.js:110:7)
    at App.emit (events.js:182:13)
    at Object.exports.execute (/home/pi/MagicMirror/node_modules/electron/dist/resources/electron.asar/browser/api/menu-item-roles.js:263:19)
    at MenuItem.click (/home/pi/MagicMirror/node_modules/electron/dist/resources/electron.asar/browser/api/menu-item.js:53:16)
    at Function.executeCommand (/home/pi/MagicMirror/node_modules/electron/dist/resources/electron.asar/browser/api/menu.js:30:13)
SyntaxError: Unexpected token T in JSON at position 0
    at JSON.parse (<anonymous>)
    at PythonShell.asJson (/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/node_modules/python-shell/index.js:358:21)
    at /home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/node_modules/python-shell/index.js:310:42
    at Array.forEach (<anonymous>)
    at PythonShell.recieveInternal (/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/node_modules/python-shell/index.js:306:15)
    at PythonShell.receiveStderr (/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/node_modules/python-shell/index.js:290:21)
    at Socket.<anonymous> (/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/node_modules/python-shell/index.js:108:18)
    at Socket.emit (events.js:182:13)
    at addChunk (_stream_readable.js:279:12)
    at readableAddChunk (_stream_readable.js:260:13)
{ Error: ModuleNotFoundError: No module named 'cv2'
    at PythonShell.parseError (/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/node_modules/python-shell/index.js:246:21)
    at terminateIfNeeded (/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/node_modules/python-shell/index.js:129:32)
    at ChildProcess.<anonymous> (/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/node_modules/python-shell/index.js:121:13)
    at ChildProcess.emit (events.js:182:13)
    at Process.ChildProcess._handle.onexit (internal/child_process.js:237:12)
    ----- Python Traceback -----
    File "modules/MMM-Face-Reco-DNN/tools/facerecognition.py", line 5, in <module>
      from stream import VideoStream
    File "/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/tools/stream.py", line 2, in <module>
      from webcam import WebcamVideoStream
    File "/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/tools/webcam.py", line 3, in <module>
      import cv2
  traceback:
   'Traceback (most recent call last):\n  File "modules/MMM-Face-Reco-DNN/tools/facerecognition.py", line 5, in <module>\n    from stream import VideoStream\n  File "/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/tools/stream.py", line 2, in <module>\n    from webcam import WebcamVideoStream\n  File "/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/tools/webcam.py", line 3, in <module>\n    import cv2\nModuleNotFoundError: No module named \'cv2\'\n',
  executable: 'python3',
  options: null,
  script: 'modules/MMM-Face-Reco-DNN/tools/facerecognition.py',
  args:
   [ '--cascade=modules/MMM-Face-Reco-DNN/tools/haarcascade_frontalface_default.xml',
     '--encodings=modules/MMM-Face-Reco-DNN/tools/encodings.pickle',
     '--usePiCamera=1',
     '--method=dnn',
     '--detectionMethod=hog',
     '--interval=2000',
     '--output=0',
     '--extendDataset=False',
     '--dataset=modules/MMM-Face-Reco-DNN/dataset/' ],
  exitCode: 1 }
TypeError: Cannot read property 'childProcess' of undefined
    at Class.destroy (/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/node_helper.js:84:18)
    at Class.python_stop (/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/node_helper.js:79:10)
    at Class.stop (/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/node_helper.js:102:10)
    at App.stop (/home/pi/MagicMirror/js/app.js:247:16)
    at process.App.process.on (/home/pi/MagicMirror/js/app.js:261:8)
    at process.emit (events.js:182:13)
TypeError: Cannot read property 'childProcess' of undefined
    at Class.destroy (/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/node_helper.js:84:18)
    at Class.python_stop (/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/node_helper.js:79:10)
    at Class.stop (/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/node_helper.js:102:10)
    at App.stop (/home/pi/MagicMirror/js/app.js:247:16)
    at process.App.process.on (/home/pi/MagicMirror/js/app.js:261:8)
    at process.emit (events.js:182:13)
SyntaxError: Unexpected token T in JSON at position 0
    at JSON.parse (<anonymous>)
    at PythonShell.asJson (/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/node_modules/python-shell/index.js:358:21)
    at /home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/node_modules/python-shell/index.js:310:42
    at Array.forEach (<anonymous>)
    at PythonShell.recieveInternal (/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/node_modules/python-shell/index.js:306:15)
    at PythonShell.receiveStderr (/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/node_modules/python-shell/index.js:290:21)
    at Socket.<anonymous> (/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/node_modules/python-shell/index.js:108:18)
    at Socket.emit (events.js:182:13)
    at addChunk (_stream_readable.js:279:12)
    at readableAddChunk (_stream_readable.js:260:13)
{ Error: ModuleNotFoundError: No module named 'cv2'
    at PythonShell.parseError (/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/node_modules/python-shell/index.js:246:21)
    at terminateIfNeeded (/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/node_modules/python-shell/index.js:129:32)
    at ChildProcess.<anonymous> (/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/node_modules/python-shell/index.js:121:13)
    at ChildProcess.emit (events.js:182:13)
    at Process.ChildProcess._handle.onexit (internal/child_process.js:237:12)
    ----- Python Traceback -----
    File "modules/MMM-Face-Reco-DNN/tools/facerecognition.py", line 5, in <module>
      from stream import VideoStream
    File "/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/tools/stream.py", line 2, in <module>
      from webcam import WebcamVideoStream
    File "/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/tools/webcam.py", line 3, in <module>
      import cv2
  traceback:
   'Traceback (most recent call last):\n  File "modules/MMM-Face-Reco-DNN/tools/facerecognition.py", line 5, in <module>\n    from stream import VideoStream\n  File "/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/tools/stream.py", line 2, in <module>\n    from webcam import WebcamVideoStream\n  File "/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/tools/webcam.py", line 3, in <module>\n    import cv2\nModuleNotFoundError: No module named \'cv2\'\n',
  executable: 'python3',
  options: null,
  script: 'modules/MMM-Face-Reco-DNN/tools/facerecognition.py',
  args:
   [ '--cascade=modules/MMM-Face-Reco-DNN/tools/haarcascade_frontalface_default.xml',
     '--encodings=modules/MMM-Face-Reco-DNN/tools/encodings.pickle',
     '--usePiCamera=1',
     '--method=dnn',
     '--detectionMethod=hog',
     '--interval=2000',
     '--output=0',
     '--extendDataset=False',
     '--dataset=modules/MMM-Face-Reco-DNN/dataset/' ],
  exitCode: 1 }
TypeError: Cannot read property 'childProcess' of undefined
    at Class.destroy (/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/node_helper.js:84:18)
    at Class.python_stop (/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/node_helper.js:79:10)
    at Class.stop (/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/node_helper.js:102:10)
    at App.stop (/home/pi/MagicMirror/js/app.js:247:16)
    at App.app.on (/home/pi/MagicMirror/js/electron.js:110:7)
    at App.emit (events.js:182:13)
SyntaxError: Unexpected token T in JSON at position 0
    at JSON.parse (<anonymous>)
    at PythonShell.asJson (/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/node_modules/python-shell/index.js:358:21)
    at /home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/node_modules/python-shell/index.js:310:42
    at Array.forEach (<anonymous>)
    at PythonShell.recieveInternal (/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/node_modules/python-shell/index.js:306:15)
    at PythonShell.receiveStderr (/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/node_modules/python-shell/index.js:290:21)
    at Socket.<anonymous> (/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/node_modules/python-shell/index.js:108:18)
    at Socket.emit (events.js:182:13)
    at addChunk (_stream_readable.js:279:12)
    at readableAddChunk (_stream_readable.js:260:13)
{ Error: ModuleNotFoundError: No module named 'cv2'
    at PythonShell.parseError (/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/node_modules/python-shell/index.js:246:21)
    at terminateIfNeeded (/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/node_modules/python-shell/index.js:129:32)
    at ChildProcess.<anonymous> (/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/node_modules/python-shell/index.js:121:13)
    at ChildProcess.emit (events.js:182:13)
    at Process.ChildProcess._handle.onexit (internal/child_process.js:237:12)
    ----- Python Traceback -----
    File "modules/MMM-Face-Reco-DNN/tools/facerecognition.py", line 5, in <module>
      from stream import VideoStream
    File "/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/tools/stream.py", line 2, in <module>
      from webcam import WebcamVideoStream
    File "/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/tools/webcam.py", line 3, in <module>
      import cv2
  traceback:
   'Traceback (most recent call last):\n  File "modules/MMM-Face-Reco-DNN/tools/facerecognition.py", line 5, in <module>\n    from stream import VideoStream\n  File "/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/tools/stream.py", line 2, in <module>\n    from webcam import WebcamVideoStream\n  File "/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/tools/webcam.py", line 3, in <module>\n    import cv2\nModuleNotFoundError: No module named \'cv2\'\n',
  executable: 'python3',
  options: null,
  script: 'modules/MMM-Face-Reco-DNN/tools/facerecognition.py',
  args:
   [ '--cascade=modules/MMM-Face-Reco-DNN/tools/haarcascade_frontalface_default.xml',
     '--encodings=modules/MMM-Face-Reco-DNN/tools/encodings.pickle',
     '--usePiCamera=1',
     '--method=dnn',
     '--detectionMethod=hog',
     '--interval=2000',
     '--output=0',
     '--extendDataset=False',
     '--dataset=modules/MMM-Face-Reco-DNN/dataset/' ],
  exitCode: 1 }
TypeError: Cannot read property 'childProcess' of undefined
    at Class.destroy (/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/node_helper.js:84:18)
    at Class.python_stop (/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/node_helper.js:79:10)
    at Class.stop (/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/node_helper.js:102:10)
    at App.stop (/home/pi/MagicMirror/js/app.js:247:16)
    at process.App.process.on (/home/pi/MagicMirror/js/app.js:261:8)
    at process.emit (events.js:182:13)
TypeError: Cannot read property 'childProcess' of undefined
    at Class.destroy (/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/node_helper.js:84:18)
    at Class.python_stop (/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/node_helper.js:79:10)
    at Class.stop (/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/node_helper.js:102:10)
    at App.stop (/home/pi/MagicMirror/js/app.js:247:16)
    at process.App.process.on (/home/pi/MagicMirror/js/app.js:261:8)
    at process.emit (events.js:182:13)
TypeError: Cannot read property 'childProcess' of undefined
    at Class.destroy (/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/node_helper.js:84:18)
    at Class.python_stop (/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/node_helper.js:79:10)
    at Class.stop (/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/node_helper.js:102:10)
    at App.stop (/home/pi/MagicMirror/js/app.js:247:16)
    at process.App.process.on (/home/pi/MagicMirror/js/app.js:261:8)
    at process.emit (events.js:182:13)
{ Error: spawn home/pi/.virtualenvs/cv/bin/python3.7 ENOENT
    at Process.ChildProcess._handle.onexit (internal/child_process.js:229:19)
    at onErrorNT (internal/child_process.js:406:16)
    at process._tickCallback (internal/process/next_tick.js:63:19)
  errno: 'ENOENT',
  code: 'ENOENT',
  syscall: 'spawn home/pi/.virtualenvs/cv/bin/python3.7',
  path: 'home/pi/.virtualenvs/cv/bin/python3.7',
  spawnargs:
   [ 'modules/MMM-Face-Reco-DNN/tools/facerecognition.py',
     '--cascade=modules/MMM-Face-Reco-DNN/tools/haarcascade_frontalface_default.xml',
     '--encodings=modules/MMM-Face-Reco-DNN/tools/encodings.pickle',
     '--usePiCamera=1',
     '--method=dnn',
     '--detectionMethod=hog',
     '--interval=2000',
     '--output=0',
     '--extendDataset=False',
     '--dataset=modules/MMM-Face-Reco-DNN/dataset/' ] }
TypeError: Cannot read property 'childProcess' of undefined
    at Class.destroy (/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/node_helper.js:84:18)
    at Class.python_stop (/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/node_helper.js:79:10)
    at Class.stop (/home/pi/MagicMirror/modules/MMM-Face-Reco-DNN/node_helper.js:102:10)
    at App.stop (/home/pi/MagicMirror/js/app.js:247:16)
    at process.App.process.on (/home/pi/MagicMirror/js/app.js:261:8)
    at process.emit (events.js:182:13)
{ Error: spawn home/pi/.virtualenvs/cv/bin/python3 ENOENT
    at Process.ChildProcess._handle.onexit (internal/child_process.js:229:19)
    at onErrorNT (internal/child_process.js:406:16)
    at process._tickCallback (internal/process/next_tick.js:63:19)
  errno: 'ENOENT',
  code: 'ENOENT',
  syscall: 'spawn home/pi/.virtualenvs/cv/bin/python3',
  path: 'home/pi/.virtualenvs/cv/bin/python3',
  spawnargs:
   [ 'modules/MMM-Face-Reco-DNN/tools/facerecognition.py',
     '--cascade=modules/MMM-Face-Reco-DNN/tools/haarcascade_frontalface_default.xml',
     '--encodings=modules/MMM-Face-Reco-DNN/tools/encodings.pickle',
     '--usePiCamera=1',
     '--method=dnn',
     '--detectionMethod=hog',
     '--interval=2000',
     '--output=0',
     '--extendDataset=False',
     '--dataset=modules/MMM-Face-Reco-DNN/dataset/' ] }

Config.js:

/* Magic Mirror Config Sample
 *
 * By Michael Teeuw http://michaelteeuw.nl
 * MIT Licensed.
 *
 * For more information how you can configurate this file
 * See https://github.com/MichMich/MagicMirror#configuration
 *
 */

var config = {
	address: "localhost", // Address to listen on, can be:
	                      // - "localhost", "127.0.0.1", "::1" to listen on loopback interface
	                      // - another specific IPv4/6 to listen on a specific interface
	                      // - "", "0.0.0.0", "::" to listen on any interface
	                      // Default, when address config is left out, is "localhost"
	port: 8080,
	ipWhitelist: ["127.0.0.1", "::ffff:127.0.0.1", "::1"], // Set [] to allow all IP addresses
	                                                       // or add a specific IPv4 of 192.168.1.5 :
	                                                       // ["127.0.0.1", "::ffff:127.0.0.1", "::1", "::ffff:192.168.1.5"],
	                                                       // or IPv4 range of 192.168.3.0 --> 192.168.3.15 use CIDR format :
	                                                       // ["127.0.0.1", "::ffff:127.0.0.1", "::1", "::ffff:192.168.3.0/28"],

	language: "de",
	timeFormat: 24,
	units: "metric",

	modules: [
		{
			module: "alert",
		},
		{
			module: "updatenotification",
			position: "top_bar"
		},
		{
			module: "clock",
			position: "top_left"
		},
		{
			module: "calendar",
			header: "Torbens Kalender",
			position: "top_left",
			config: {
				calendars: [
					{
						symbol: "calendar-check",
                        url: "https://calendar.google.com/calendar/ical/basic.ics",	
                        maximumEntries: "5",	
                        auth: {
                            user: "user",
                            pass: "mypass",
                            method: "basic"
                        }	
                    }
				]
			}
		},
		{
            module: "compliments",
            disabled: true,
            position: "lower_third",
            config: {
                compliments: {
                    anytime: [
                        "Hallo"
                    ],
                    morning: [
                        "Guten Morgen!",
                        "Gut geschlafen?",
                    ],
                    afternoon: [
                        "Guten Tag",
                    ],
                    evening: [
                        "Guten Abend",
                    ]
                }
            }
		},
		{
			module: "currentweather",
			position: "top_right",
			config: {
				locationID: "2895044",  //ID from http://bulk.openweathermap.org/sample/city.list.json.gz; unzip the gz file and find your city
				appid: "myappid"
			}
		},
		{
			module: "weatherforecast",
			position: "top_right",
			header: "Vorhersage",
			config: {
				locationID: "2895044",  //ID from http://bulk.openweathermap.org/sample/city.list.json.gz; unzip the gz file and find your city
				appid: "myappid"
			}
		},
		{
			module: "newsfeed",
			position: "bottom_bar",
			config: {
				feeds: [
					{
						title: "Spiegel",
						url: "https://www.spiegel.de/schlagzeilen/tops/index.rss"
					}
				],
				showSourceTitle: true,
				showPublishDate: true,
				broadcastNewsFeeds: true,
                broadcastNewsUpdates: true,
                showDescription: true,
                updateInterval: "20000"
			}
		},
		{
			module: 'MMM-Face-Reco-DNN',
			config: {
				// Logout 15 seconds after user was not detecte anymore, if they will be detected between this 15 Seconds, they delay will start again
				logoutDelay: 15000,
				// How many time the recognition starts, with a RasPi 3+ it would be good every 2 seconds
				checkInterval: 2000,
				// Module set used for strangers and if no user is detected
				defaultClass: 'default',
				// Set of modules which should be shown for every user
				everyoneClass: 'everyone',
				// XML to recognize with haarcascae
				cascade: 'modules/MMM-Face-Reco-DNN/tools/haarcascade_frontalface_default.xml',
				// Pre encoded pickle with the faces
				encodings: 'modules/MMM-Face-Reco-DNN/tools/encodings.pickle',
				// You wanna use pi camera or usb / builtin (1 = raspi camera, 0 = other camera)
				usePiCamera: 1,
				// Method of face detection (dnn = deep neural network, haar = haarcascade)
				method: 'dnn',
				// Which face detection model to use. "hog" is less accurate but faster on CPUs. "cnn" is a more accurate deep-learning model which is GPU/CUDA accelerated (if available).
				detectionMethod: 'hog',
				// How fast in ms should the modules hide and show (face effect)
				animationSpeed: 0,
				// Path to Python to run the face recognition (null / '' means default path)
				pythonPath: '/home/pi/.virtualenvs/cv/bin/python3.7',
				// Should shown welcome message over alert module from MagicMirror
				welcomeMessage: true,
				// Save some pictures from recognized people, if unknown we save it in folder "unknown"
				// So you can extend your dataset and retrain it afterwards for better recognitions
				extendDataset: false,
				// if extenDataset is set, you need to set the full path of the dataset
				dataset: 'modules/MMM-Face-Reco-DNN/dataset/'
			}
		},
	]

};

/*************** DO NOT EDIT THE LINE BELOW ***************/
if (typeof module !== "undefined") {module.exports = config;}

I don’t know but I’ve attached the error log and you can find my config.js above. Thank you and sorry for the long message.

Antagonist

Everything works fine without the module integration in the MagicMirror/config.js but with the additional text there is no response and the monitor is black. I installed python in a virtual environment but I changed the pythonpath accordingly so I don’t know if this is the problem.
If somebody could kindly show their config.js with the module enabled this would be extremly helpful.

Antagonist

@Sean Thank you. I assume this would’t make a lot of sense since opencv is free and azure has a limited number of recognitions. Nevertheless an emotion detector would be cool. Because of your fancy Module Developer Icon I think you have a lot more experience with this stuff so do you know if something like this currently exists?

Antagonist

@Antagonist

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