從CPAN安裝Perl模塊時收到“需要代理身份驗證”消息

Question

我正在嘗試從CPAN安裝Perl模塊（JSON），但出現以下錯誤。

root@catspc:/etc/apt# cpan

cpan shell -- CPAN exploration and modules installation (v1.960001)
Enter 'h' for help.

cpan[1]> install JSON
Going to read '/root/.cpan/Metadata'
  Database was generated on Sat, 07 Dec 2013 22:53:04 GMT
Fetching with LWP:
http://mirror.sov.uk.goscomb.net/CPAN/authors/01mailrc.txt.gz

Proxy authentication needed!
 (Note: to permanently configure username and password run
   o conf proxy_user your_username
   o conf proxy_pass your_password
     )
Username:  vc06
Password:  

Catching error: "Undefined subroutine &CPAN::HTTP::Credentials::_clear_non_proxy_credentials called at /usr/share/perl/5.14/CPAN/HTTP/Credentials.pm line 10, <STDIN> line 2.\cJ" at /usr/share/perl/5.14/CPAN.pm line 391
    CPAN::shell() called at /usr/share/perl/5.14/App/Cpan.pm line 295
    App::Cpan::_process_options('App::Cpan') called at /usr/share/perl/5.14/App/Cpan.pm line 364
    App::Cpan::run('App::Cpan') called at /usr/bin/cpan line 11
Fetching with LWP:
http://mirror.sov.uk.goscomb.net/CPAN/authors/01mailrc.txt.gz
Lockfile removed.
Undefined subroutine &CPAN::HTTP::Credentials::_clear_non_proxy_credentials called at /usr/share/perl/5.14/CPAN/HTTP/Credentials.pm line 10, <STDIN> line 2.
root@catspc:/etc/apt#

有人可以幫我解決此問題嗎？ 這里出了什么問題？

等待您的寶貴答復。

Answer 1

可能是您的cpan配置不正確。

為什么不使用cpanm是有原因的？ （ https://metacpan.org/release/App-cpanminus ）

幾年前，我從cpan切換到cpanm，還沒有后悔。

描述

cpanminus是一個腳本，用於從CPAN獲取，解壓縮，構建和安裝模塊，並且不執行其他任何操作。

它沒有依賴項（可以自行引導），需要零配置，並且獨立存在。 運行時，它僅需要10MB的RAM。