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subscription-manager コマンドがトレースバックエラー "KeyError Unknown feature DBUS_IFACE" で失敗するのはなぜですか?

Solution Verified - Updated -

Issue

  • コマンド subscription-manager が次のようなトレースバックで失敗する
Traceback (most recent call last):
  File "/usr/sbin/subscription-manager", line 67, in <module>
    inj.require(inj.DBUS_IFACE)
  File "/usr/lib64/python2.7/site-packages/subscription_manager/injection.py", line 103, in require
    return FEATURES.require(feature, *args, **kwargs)
  File "/usr/lib64/python2.7/site-packages/subscription_manager/injection.py", line 73, in require
    raise KeyError("Unknown feature: %r" % feature)
KeyError: "Unknown feature: 'DBUS_IFACE'

Environment

  • Red Hat Enterprise Linux 7
  • subscription-manager
  • x86_64 システムアーキテクチャー

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