源列表 /etc/apt/sources.list (dist parse) 中的行格式错误，不允许我使用更新管理器

Question

这是错误希望我能得到一些帮助，我向您展示了更新管理器和错误行，如果您需要其他东西只需提出要求即可。

update manager error prompt:

An unresolvable problem occurred while initializing the package information.

Please report this bug against the 'update-manager' package and include the following error message:

'E:Malformed line 58 in source list /etc/apt/sources.list (dist parse), E:The list of sources could not be read., E:The package lists or status file could not be parsed or opened.'

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error line:

deb http:mx.archive.ubuntu.com/ubuntu/ precise-updates main restricted

Answer 1

您的 URL 被损坏：

deb http:mx.archive.ubuntu.com/ubuntu/ precise-updates main restricted

应该：

deb http://mx.archive.ubuntu.com/ubuntu/ precise-updates main restricted