jupyter notebook 无法连接 Python3

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[I 13:59:48.196 NotebookApp] Kernel started:XXXXX
[W 13:59:48.627 NotebookApp] 400 GET /api/kernels/6130c157-2b89-4150-a818-0df03f88cdb9/channels?session_id=YYYYYYYYYYY (127.0.0.1) 315.75ms referer=None
[W 13:59:49.711 NotebookApp] Replacing stale connection: JJJJJJJJJJJJJJJJ

####请问如何解决呀？

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13:59:48 127.0.0.1 notebookapp channels