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AttributeError: 'VispyWidget' object has no attribute 'on_msg' #50

Open yileichen123 opened 6 years ago

yileichen123 commented 6 years ago

AttributeError Traceback (most recent call last)

in () ----> 1 c.show() 2 app.run(); f:\anaconda3\vispy-master\vispy\app\canvas.py in show(self, visible, run) 427 Run the backend event loop. 428 """ --> 429 self._backend._vispy_set_visible(visible) 430 if run: 431 self.app.run() f:\anaconda3\vispy-master\vispy\app\backends\_ipynb_webgl.py in _vispy_set_visible(self, visible) 206 return 207 if self._widget is None: --> 208 self._widget = VispyWidget() 209 self._widget.set_canvas(self._vispy_canvas) 210 display(self._widget) f:\anaconda3\vispy-master\vispy\app\backends\ipython\_widget.py in __init__(self, **kwargs) 60 def __init__(self, **kwargs): 61 super(VispyWidget, self).__init__(**kwargs) ---> 62 self.on_msg(self.events_received) 63 self.canvas = None 64 self.canvas_backend = None AttributeError: 'VispyWidget' object has no attribute 'on_msg'