[Bug 1023421] Re: Update Manager can't set LC_MESSAGES to default locale

[dg1727]

In my case, the problem was a file ~/.dmrc which was as follows:

[Desktop]
Language=en_US
Langlist=en_US:en
LCMess=en_US.UTF-8
Layout=us
Session=xfce

Deleting that .dmrc file fixed the issue.

Neither the user of this user account, nor the admin user, has ever
explicitly set a locale to en_US.  So apparently there was a bug in a
previous software version that produced the "en_US".  (The same /home
partition is being used as when a previous distro was running on the
machine.)

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https://bugs.launchpad.net/bugs/1023421

Title:
  Update Manager can't set  LC_MESSAGES to default locale

Status in update-manager package in Ubuntu:
  Confirmed

Bug description:
  When I try to Update Ubuntu I always see the following lines moving
  up.  These lines appear (when I click on 'Details') frequently while
  updating.  I wish to know whether it is an internal error.  Need I do
  anything?   I doubt my question about sending Emails by Thunderbird
  (Not solved yet; but now removed from my launchpad 'answers') is a
  side effect of this.

  The repeating lines are these:
  ---------------------------------------------------
  locale: Cannot set LC_CTYPE to default locale:  No such file or directory
  locale: Cannot set LC_MESSAGES to default locale:  No such file or directory
  locale: Cannot set LC_ALL to default locale:  No such file or directory
  --------------------------------------------------
  Should I ignore all these?

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