Cannot install any package

[dwit.udeshi]

I am new to ubuntu and am using ubuntu 11.04 (64-bit) but i
cannot install any downloaded software packages using ubuntu software center. I cannot event istall any updates by update manager. following error message is displayed. Please help me!

installArchives() failed: perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
LANGUAGE = (unset),
LC_ALL = (unset),
LANG = "en_IN.ISO8859-1"
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
Extracting templates from packages: 11%% Extracting templates from packages: 23%% Extracting templates from packages: 35%% Extracting templates from packages: 47%% Extracting templates from packages: 59%% Extracting templates from packages: 71%% Extracting templates from packages: 83%% Extracting templates from packages: 95%% Extracting templates from packages: 100%%
Preconfiguring packages ...
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
LANGUAGE = (unset),
LC_ALL = (unset),
LANG = "en_IN.ISO8859-1"
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
Extracting templates from packages: 11%% Extracting templates from packages: 23%% Extracting templates from packages: 35%% Extracting templates from packages: 47%% Extracting templates from packages: 59%% Extracting templates from packages: 71%% Extracting templates from packages: 83%% Extracting templates from packages: 95%% Extracting templates from packages: 100%%
Preconfiguring packages ...
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
LANGUAGE = (unset),
LC_ALL = (unset),
LANG = "en_IN.ISO8859-1"
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
Extracting templates from packages: 11%% Extracting templates from packages: 23%% Extracting templates from packages: 35%% Extracting templates from packages: 47%% Extracting templates from packages: 59%% Extracting templates from packages: 71%% Extracting templates from packages: 83%% Extracting templates from packages: 95%% Extracting templates from packages: 100%%
Preconfiguring packages ...
Setting up tzdata (2011l-0ubuntu0.11.04) ...
Use of uninitialized value $reply in scalar chomp at /usr/share/perl5/Debconf/FrontEnd/Passthrough.pm line 66.
Use of uninitialized value $reply in concatenation (.) or string at /usr/share/perl5/Debconf/FrontEnd/Passthrough.pm line 67.
Use of uninitialized value $reply in split at /usr/share/perl5/Debconf/FrontEnd/Passthrough.pm line 68.
Use of uninitialized value $reply in scalar chomp at /usr/share/perl5/Debconf/FrontEnd/Passthrough.pm line 66.
Use of uninitialized value $reply in concatenation (.) or string at /usr/share/perl5/Debconf/FrontEnd/Passthrough.pm line 67.
Use of uninitialized value $reply in split at /usr/share/perl5/Debconf/FrontEnd/Passthrough.pm line 68.
Use of uninitialized value $reply in scalar chomp at /usr/share/perl5/Debconf/FrontEnd/Passthrough.pm line 66.
Use of uninitialized value $reply in concatenation (.) or string at /usr/share/perl5/Debconf/FrontEnd/Passthrough.pm line 67.
Use of uninitialized value $reply in split at /usr/share/perl5/Debconf/FrontEnd/Passthrough.pm line 68.
Use of uninitialized value $ret in string eq at /usr/share/perl5/Debconf/FrontEnd/Passthrough.pm line 109.
dpkg: error processing tzdata (--configure):
subprocess installed post-installation script returned error exit status 128
No apport report written because MaxReports is reached already
Errors were encountered while processing:
tzdata
Setting up tzdata (2011l-0ubuntu0.11.04) ...
Use of uninitialized value $reply in scalar chomp at /usr/share/perl5/Debconf/FrontEnd/Passthrough.pm line 66.
Use of uninitialized value $reply in concatenation (.) or string at /usr/share/perl5/Debconf/FrontEnd/Passthrough.pm line 67.
Use of uninitialized value $reply in split at /usr/share/perl5/Debconf/FrontEnd/Passthrough.pm line 68.
Use of uninitialized value $reply in scalar chomp at /usr/share/perl5/Debconf/FrontEnd/Passthrough.pm line 66.
Use of uninitialized value $reply in concatenation (.) or string at /usr/share/perl5/Debconf/FrontEnd/Passthrough.pm line 67.
Use of uninitialized value $reply in split at /usr/share/perl5/Debconf/FrontEnd/Passthrough.pm line 68.
Use of uninitialized value $reply in scalar chomp at /usr/share/perl5/Debconf/FrontEnd/Passthrough.pm line 66.
Use of uninitialized value $reply in concatenation (.) or string at /usr/share/perl5/Debconf/FrontEnd/Passthrough.pm line 67.
Use of uninitialized value $reply in split at /usr/share/perl5/Debconf/FrontEnd/Passthrough.pm line 68.
Use of uninitialized value $ret in string eq at /usr/share/perl5/Debconf/FrontEnd/Passthrough.pm line 109.
dpkg: error processing tzdata (--configure):
subprocess installed post-installation script returned error exit status 128

[raja.genupula]

Hi man , hope this below link can help you to solve your issue.

http://ubuntuforums.org/showthread.php?t=1346581

[dwit.udeshi]

thanks it solved my problem! :)

[raja.genupula]

I am very glad ...mark your thread as solved from thread tools .

thank you.