cpan安装软件时报错

cpan安装软件时报错
1.报错信息

cpan[1]> install Term::ReadLine::PerlReading '/root/.cpan/sources/authors/01mailrc.txt.gz’gzip: /root/.cpan/sources/authors/01mailrc.txt.gz: not in gzip format…DONEReading '/root/.cpan/sources/modules/02packages.details.txt.gz’gzip: /root/.cpan/sources/modules/02packages.details.txt.gz: not in gzip formatWarning: Your /root/.cpan/sources/modules/02packages.details.txt.gz does not contain a Line-Count header.Please check the validity of the index file by comparing it to morethan one CPAN mirror. I’ll continue but problems seem likely tohappen.Warning: Your /root/.cpan/sources/modules/02packages.details.txt.gz does not contain a Last-Updated header.Please check the validity of the index file by comparing it to morethan one CPAN mirror. I’ll continue but problems seem likely tohappen.DONEReading '/root/.cpan/sources/modules/03modlist.data.gz’gzip: /root/.cpan/sources/modules/03modlist.data.gz: not in gzip formatCatching error: “Can’t locate object method “data” via package “CPAN::Modulelist” (perhaps you forgot to load “CPAN::Modulelist”?) at (eval 29) line 1.\cJ at /root/perl5/lib/perl5/CPAN/Index.pm line 525.\cJ\cICPAN::Index::rd_modlist(‘CPAN::Index’, ‘/root/.cpan/sources/modules/03modlist.data.gz’) called at /root/perl5/lib/perl5/CPAN/Index.pm line 85\cJ\cICPAN::Index::reload(‘CPAN::Index’) called at /root/perl5/lib/perl5/CPAN.pm line 1001\cJ\cICPAN::exists(‘CPAN=HASH(0x21fbbb0)’, ‘CPAN::Module’, ‘Term::ReadLine::Perl’) called at /root/perl5/lib/perl5/CPAN/Shell.pm line 1308\cJ\cICPAN::Shell::expandany(‘CPAN::Shell’, ‘Term::ReadLine::Perl’) called at /root/perl5/lib/perl5/CPAN/Shell.pm line 1743\cJ\cICPAN::Shell::rematein(‘CPAN::Shell’, ‘install’, ‘Term::ReadLine::Perl’) called at /root/perl5/lib/perl5/CPAN/Shell.pm line 2068\cJ\cICPAN::Shell::ANON(‘CPAN::Shell’, ‘Term::ReadLine::Perl’) called at /root/perl5/lib/perl5/CPAN.pm line 381\cJ\cIeval {…} called at /root/perl5/lib/perl5/CPAN.pm line 378\cJ\cICPAN::shell() called at /root/perl5/lib/perl5/App/Cpan.pm line 416\cJ\cIApp::Cpan::_process_options(‘App::Cpan’) called at /root/perl5/lib/perl5/App/Cpan.pm line 512\cJ\cIApp::Cpan::run(‘App::Cpan’) called at /root/perl5/bin/cpan line 15\cJ” at /root/perl5/lib/perl5/CPAN.pm line 397. CPAN::shell() called at /root/perl5/lib/perl5/App/Cpan.pm line 416 App::Cpan::_process_options(‘App::Cpan’) called at /root/perl5/lib/perl5/App/Cpan.pm line 512 App::Cpan::run(‘App::Cpan’) called at /root/perl5/bin/cpan line 15Reading '/root/.cpan/sources/authors/01mailrc.txt.gz’gzip: /root/.cpan/sources/authors/01mailrc.txt.gz: not in gzip format…DONEReading '/root/.cpan/sources/modules/02packages.details.txt.gz’gzip: /root/.cpan/sources/modules/02packages.details.txt.gz: not in gzip formatWarning: Your /root/.cpan/sources/modules/02packages.details.txt.gz does not contain a Line-Count header.Please check the validity of the index file by comparing it to morethan one CPAN mirror. I’ll continue but problems seem likely tohappen.Warning: Your /root/.cpan/sources/modules/02packages.details.txt.gz does not contain a Last-Updated header.Please check the validity of the index file by comparing it to morethan one CPAN mirror. I’ll continue but problems seem likely tohappen.DONEReading '/root/.cpan/sources/modules/03modlist.data.gz’gzip: /root/.cpan/sources/modules/03modlist.data.gz: not in gzip formatTerminal does not support GetHistory.Lockfile removed.Can’t locate object method “data” via package “CPAN::Modulelist” (perhaps you forgot to load “CPAN::Modulelist”?) at (eval 31) line 1.at /root/perl5/lib/perl5/CPAN/Index.pm line 525. CPAN::Index::rd_modlist(‘CPAN::Index’, ‘/root/.cpan/sources/modules/03modlist.data.gz’) called at /root/perl5/lib/perl5/CPAN/Index.pm line 85 CPAN::Index::reload(‘CPAN::Index’) called at /root/perl5/lib/perl5/CPAN.pm line 701 CPAN::all_objects(‘CPAN=HASH(0x21fbbb0)’, ‘CPAN::Distribution’) called at /root/perl5/lib/perl5/CPAN/Shell.pm line 1114 CPAN::Shell::find_failed(‘CPAN::Shell’, 1) called at /root/perl5/lib/perl5/CPAN/Shell.pm line 1078 CPAN::Shell::failed(‘CPAN::Shell’, 1, 1) called at /root/perl5/lib/perl5/CPAN.pm line 419 eval {…} called at /root/perl5/lib/perl5/CPAN.pm line 419 CPAN::shell() called at /root/perl5/lib/perl5/App/Cpan.pm line 416 App::Cpan::_process_options(‘App::Cpan’) called at /root/perl5/lib/perl5/App/Cpan.pm line 512 App::Cpan::run(‘App::Cpan’) called at /root/perl5/bin/cpan line 15

可以看出报错主要是Warning: Your /root/.cpan/sources/modules/02packages.details.txt.gz does not contain a Last-Updated header.
问题原因：是由于网络关系，cpan中配置的两个默认源都不可以访问到，致使没有更新的列表可用，cpan就失败了
如果不希望查看详细解决方案，请直接看正解

删除/root/.cpan/sources/modules下面两个文件

rm -f /root/.cpan/sources/modules/02packages.details.txt.gz
rm -f /root/.cpan/sources/modules/03modlist.data.gz

2. 直接编辑CPAN 配置文件(或者重新执行原来命令）
将CPAN自己默认的Urlist改为清华的镜像源。

q[http://www.perl.com/CPAN/], q[cpan>], q[o], q[conf], q[commit], q[http://www.cpan.org/]   ##自己默认的
改为：
q[https://mirror.tuna.tsinghua.edu.cn/CPAN/  ##清华的

wq报存即可。
3. 重新尝试cpan安装模块，很有可能，他已经好了

参考：http://blog.sina.com.cn/s/blog_607a84e00101hrzk.html

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