[Bug 1062018] Re: I cannot update or install softwares

[Adolfo Jayme Barrientos]

Thank you for taking the time to report this issue and helping to make
Ubuntu better. Examining the information you have given us, this does
not appear to be a bug report so we are closing it and converting it to
a question in the support tracker. We understand the difficulties you
are facing, but it is better to raise problems you are having in the
support tracker at https://answers.launchpad.net/ubuntu if you are
uncertain if they are bugs. You can also find help with your problem in
the support forum of your local Ubuntu community http://loco.ubuntu.com/
or asking at http://askubuntu.com or http://ubuntuforums.org. For help
on reporting bugs, see https://help.ubuntu.com/community/ReportingBugs.

** Changed in: update-manager (Ubuntu)
       Status: New => Invalid

** Converted to question:
   https://answers.launchpad.net/ubuntu/+source/update-manager/+question/210489

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https://bugs.launchpad.net/bugs/1062018

Title:
  I cannot update  or install softwares

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

Bug description:
  When i am going to install the updates using update Manager, a error messege comes and it says:
  Requires installation of untrusted packages

  The action would require the installation of packages from not
  authenticated sources.

  I dont know how to correct this error.In previous weeks (before i updtae the update maneger programme) i was able to install any software and update.But now,the above error comes always
  help me please
  Description:	Ubuntu 12.04.1 LTS
  Release:	12.04

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