AttributeError: 'NoneType' object has no attribute 'create_execution_context'

[Daryatnt]

HI
any idea what is the problem

  File "test.py", line 8, in <module>
    for image, bboxes in wrapper.detect_from_webcam(0): # Gets detection and image from the usb camera with id 0
  File "/home/jetson/jetson_yolov5_tensorrt/yolov5_trt/trt_wrapper.py", line 158, in detect_from_webcam
    for image, bboxes in self.detect_from_video(cap):
  File "/home/jetson/jetson_yolov5_tensorrt/yolov5_trt/trt_wrapper.py", line 146, in detect_from_video
    with self.create_session() as session:
  File "/home/jetson/jetson_yolov5_tensorrt/yolov5_trt/trt_wrapper.py", line 44, in __enter__
    self.context = self.engine.create_execution_context()
AttributeError: 'NoneType' object has no attribute 'create_execution_context'

[alxmamaev]

Probably something is wrong with the model deserialization, that's happening here. You may check TensorRT docs for this method, I think that is a problem with the model conversion.

[danielzhangau]

Add ctypes.CDLL(plugin_lib_path) solved my case.

After you build your engine file, there will be a libmyplugins.so file generated as well.