CPAN在ubuntu上给出各种错误 [英] CPAN giving all sorts of errors on ubuntu

问题描述

我只是试图运行一个简单的perl程序，以从xml导入数据并将其导出到数据库。

I am just trying to run a simple perl program to import data from xml and export it to database.

使用Mysql;无法正常工作，因此在无法从cpan获取Mysql.pm之后，我改用了DBD :: mysql。

Use Mysql; did not work, so I used DBD::mysql instead after failing to get Mysql.pm from cpan.

但是，我无法安装任何东西。我正在尝试安装xml解析器模块，但是无论您尝试安装哪个模块，cpan都会出现这些错误。

However, I am unable to install anything. I am trying to install xml parser module, but cpan gives these errors no matter what module you try to install.

install xml::parser
CPAN: Storable loaded ok (v2.20)
Going to read '/root/.cpan/sources/authors/01mailrc.txt.gz'
CPAN: Compress::Zlib loaded ok (v2.02)
............................................................................DONE
Going to read '/root/.cpan/sources/modules/02packages.details.txt.gz'
Warning: 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 more
than one CPAN mirror. I'll continue but problems seem likely to
happen.
CPAN: Time::HiRes loaded ok (v1.9719)
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 more
than one CPAN mirror. I'll continue but problems seem likely to
happen.
DONE
Going to read '/root/.cpan/sources/modules/03modlist.data.gz'
Catching 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 /usr/share/perl/5.10/CPAN/Index.pm line 518\cJ\cICPAN::Index::rd_modlist('CPAN::Index', '/root/.cpan/sources/modules/03modlist.data.gz') called at /usr/share/perl/5.10/CPAN/Index.pm line 85\cJ\cICPAN::Index::reload('CPAN::Index') called at /usr/share/perl/5.10/CPAN.pm line 955\cJ\cICPAN::exists('CPAN=HASH(0xa225610)', 'CPAN::Module', 'xml::parser') called at /usr/share/perl/5.10/CPAN/Shell.pm line 1243\cJ\cICPAN::Shell::expandany('CPAN::Shell', 'xml::parser') called at /usr/share/perl/5.10/CPAN/Shell.pm line 1639\cJ\cICPAN::Shell::rematein('CPAN::Shell', 'install', 'xml::parser') called at /usr/share/perl/5.10/CPAN/Shell.pm line 1935\cJ\cICPAN::Shell::__ANON__('CPAN::Shell', 'xml::parser') called at /usr/share/perl/5.10/CPAN.pm line 375\cJ\cIeval {...} called at /usr/share/perl/5.10/CPAN.pm line 372\cJ\cICPAN::shell() called at /usr/bin/cpan line 198\cJ" at /usr/share/perl/5.10/CPAN.pm line 391
    CPAN::shell() called at /usr/bin/cpan line 198
Going to read '/root/.cpan/sources/authors/01mailrc.txt.gz'
............................................................................DONE
Going to read '/root/.cpan/sources/modules/02packages.details.txt.gz'
Warning: 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 more
than one CPAN mirror. I'll continue but problems seem likely to
happen.
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 more
than one CPAN mirror. I'll continue but problems seem likely to
happen.
cpanDONE
Going to read '/root/.cpan/sources/modules/03modlist.data.gz'
No history written (no histfile specified).
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 /usr/share/perl/5.10/CPAN/Index.pm line 518
    CPAN::Index::rd_modlist('CPAN::Index', '/root/.cpan/sources/modules/03modlist.data.gz') called at /usr/share/perl/5.10/CPAN/Index.pm line 85
    CPAN::Index::reload('CPAN::Index') called at /usr/share/perl/5.10/CPAN.pm line 692
    CPAN::all_objects('CPAN=HASH(0xa225610)', 'CPAN::Distribution') called at /usr/share/perl/5.10/CPAN/Shell.pm line 1046
    CPAN::Shell::failed('CPAN::Shell', 2, 1) called at /usr/share/perl/5.10/CPAN.pm line 413
    eval {...} called at /usr/share/perl/5.10/CPAN.pm line 413
  CPAN::shell() called at /usr/bin/cpan line 198

我做错什么了吗？我尝试搜索这些错误，但是没有人有正确的解决方案。我应该更改配置中的某些设置吗？

Am I doing something wrong? I tried searching for these errors, but no one has a right solution. Is there some setting in the config I should change?

推荐答案

如果没有人可以解决您的特定问题，我可能会尝试

If nobody has an answer for your particular problem I would probably just try with a new cpan, something like:

cd && mv .cpan .cpan-bak

然后尝试再次安装该模块。

and then trying to install the module again.

希望这会有所帮助。

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