Ubuntu - Setting locale failed? Reinstall packages then!

A quick note to self reminder.
If your newly minted Ubuntu box gives you the following error:

perl: warning: Falling back to the standard locale ("C").</div> <div> <div>perl: warning: Setting locale failed.</div> <div>perl: warning: Please check that your locale settings:</div> <div> <span style="white-space: pre;"> </span>LANGUAGE = (unset),</div> <div> <span style="white-space: pre;"> </span>LC_ALL = (unset),</div> <div> <span style="white-space: pre;"> </span>LANG = "en_SG.UTF-8"</div> <div>    are supported and installed on your system.</div> <div>

Just reinstall the packages by:</div> <div> <div>apt-get install --reinstall language-pack-en

 

It should fix the problem