I just did a fresh install of ubuntu using debootstrap. When I do sudo aptitude upgrade, I get this error message:

perl: warning: Setting locale failed.

perl: warning: Please check that your locale settings:

    LANGUAGE = "en_US:en",

    LC_ALL = (unset),

    LANG = "en_US.ISO-8859-1"

are supported and installed on your system.

perl: warning: Falling back to the standard locale ("C").

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

Can someone please tell me how to resolve this issue? I see a lot of postings similar to this online but none of them seems to resolve the problem.

I am using Ubuntu 14.04 LTS. Thanks.

FYI:

$ locale -a

C

C.UTF-8

en_AG

en_AG.utf8

en_AU.utf8

en_BW.utf8

en_CA.utf8

en_DK.utf8

en_GB.utf8

en_HK.utf8

en_IE.utf8

en_IN

en_IN.utf8

en_NG

en_NG.utf8

en_NZ.utf8

en_PH.utf8

en_SG.utf8

en_US.iso88591

en_US.utf8

en_ZA.utf8

en_ZM

en_ZM.utf8

en_ZW.utf8

POSIX

and

$ locale

LANG=en_US.ISO-8859-1

LANGUAGE=en_US:en

LC_CTYPE="en_US.ISO-8859-1"

LC_NUMERIC="en_US.ISO-8859-1"

LC_TIME="en_US.ISO-8859-1"

LC_COLLATE="en_US.ISO-8859-1"

LC_MONETARY="en_US.ISO-8859-1"

LC_MESSAGES="en_US.ISO-8859-1"

LC_PAPER="en_US.ISO-8859-1"

LC_NAME="en_US.ISO-8859-1"

LC_ADDRESS="en_US.ISO-8859-1"

LC_TELEPHONE="en_US.ISO-8859-1"

LC_MEASUREMENT="en_US.ISO-8859-1"

LC_IDENTIFICATION="en_US.ISO-8859-1"

LC_ALL=