[Bug 1219179] [NEW] pkgProblemResolver::Resolve 发生故障

[Max Xu]

Public bug reported:

ERROR Dist-upgrade failed: 'E:错误，pkgProblemResolver::Resolve 发生故障，这可能是有软件包被要求保持现状的缘故。'
这可能是有以下原因引起的：*升级到了预发行Ubuntu版本* 非Ubuntu提供的非官方软件包

** Affects: update-manager (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1219179

Title:
  pkgProblemResolver::Resolve 发生故障

Status in “update-manager” package in Ubuntu:
  New

Bug description:
  ERROR Dist-upgrade failed: 'E:错误，pkgProblemResolver::Resolve 发生故障，这可能是有软件包被要求保持现状的缘故。'
  这可能是有以下原因引起的：*升级到了预发行Ubuntu版本* 非Ubuntu提供的非官方软件包

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