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Ubuntu 16.04 PC に Nvidia Digits 6.1.1 をインストールしようとしました。すべての手順を慎重に行いましたが、インストールの最後に、起動時にこのエラーが発生します。

Traceback (most recent call last):
  File "/usr/lib/python2.7/runpy.py", line 174, in _run_module_as_main
    "__main__", fname, loader, pkg_name)
  File "/usr/lib/python2.7/runpy.py", line 72, in _run_code
    exec code in run_globals
  File "/home/kenan/digits/digits/__main__.py", line 70, in <module>
    main()
  File "/home/kenan/digits/digits/__main__.py", line 55, in main
    import digits.webapp
  File "digits/webapp.py", line 7, in <module>
    from flask_socketio import SocketIO
  File "/usr/local/lib/python2.7/dist-packages/flask_socketio/__init__.py", line 16, in <module>
    import socketio
  File "/home/kenan/.local/lib/python2.7/site-packages/socketio/__init__.py", line 3, in <module>
    from .client import Client
  File "/home/kenan/.local/lib/python2.7/site-packages/socketio/client.py", line 7, in <module>
    import engineio
  File "/home/kenan/.local/lib/python2.7/site-packages/engineio/__init__.py", line 3, in <module>
    from .client import Client
  File "/home/kenan/.local/lib/python2.7/site-packages/engineio/client.py", line 2, in <module>
    from json import JSONDecodeError
ImportError: cannot import name JSONDecodeError

提案に感謝します。ありがとう。

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