[Bug 1991739] [NEW] Unofficial software packages not provided by Ubuntu

[Shijin Kunnath]

Public bug reported:

 This was likely caused by:
 * Unofficial software packages not provided by Ubuntu
Please use the tool 'ppa-purge' from the ppa-purge 
package to remove software from a Launchpad PPA and 
try the upgrade again.

** Affects: ubuntu-release-upgrader (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1991739

Title:
  Unofficial software packages not provided by Ubuntu

Status in ubuntu-release-upgrader package in Ubuntu:
  New

Bug description:
   This was likely caused by:
   * Unofficial software packages not provided by Ubuntu
  Please use the tool 'ppa-purge' from the ppa-purge 
  package to remove software from a Launchpad PPA and 
  try the upgrade again.

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