无法在cygwin上安装LWP :: Simple

Question

I am a Perl beginner trying to install LWP::Simple on cygwin (CYGWIN_NT-6.3) but it fails to install. The installation seems to go wrong from the very start. Could you please help me to fix the problem?

$ perl -MCPAN -e'install "LWP::Simple"'

Going to read '/home/grw.kremilek/.cpan/Metadata'
  Database was generated on Thu, 11 Sep 2014 19:53:17 GMT
Running install for module 'LWP::Simple'
Running make for M/MS/MSCHILLI/libwww-perl-6.08.tar.gz
Checksum for /home/grw.kremilek/.cpan/sources/authors/id/M/MS/MSCHILLI/libwww-perl-6.08.tar.gz ok

  CPAN.pm: Going to build M/MS/MSCHILLI/libwww-perl-6.08.tar.gz

Checking if your kit is complete...
Looks good
Warning: prerequisite Encode::Locale 0 not found.
Warning: prerequisite File::Listing 6 not found.
Warning: prerequisite HTML::Entities 0 not found.
Warning: prerequisite HTML::HeadParser 0 not found.
Warning: prerequisite HTTP::Cookies 6 not found.
Warning: prerequisite HTTP::Daemon 6 not found.
Warning: prerequisite HTTP::Date 6 not found.
Warning: prerequisite HTTP::Negotiate 6 not found.
Warning: prerequisite HTTP::Request 6 not found.
Warning: prerequisite HTTP::Request::Common 6 not found.
Warning: prerequisite HTTP::Response 6 not found.
Warning: prerequisite HTTP::Status 6 not found.
Warning: prerequisite LWP::MediaTypes 6 not found.
Warning: prerequisite Net::HTTP 6.07 not found.
Warning: prerequisite URI 1.10 not found.
Warning: prerequisite URI::Escape 0 not found.
Warning: prerequisite WWW::RobotRules 6 not found.
Writing Makefile for LWP
Writing MYMETA.yml
---- Unsatisfied dependencies detected during ----
----     MSCHILLI/libwww-perl-6.08.tar.gz     ----
    URI::Escape [requires]
    LWP::MediaTypes [requires]
    Encode::Locale [requires]
    HTTP::Status [requires]
    File::Listing [requires]
    HTTP::Negotiate [requires]
    HTML::Entities [requires]
    HTTP::Daemon [requires]
    Net::HTTP [requires]
    URI [requires]
    HTML::HeadParser [requires]
    HTTP::Cookies [requires]
    HTTP::Request::Common [requires]
    HTTP::Date [requires]
    HTTP::Response [requires]
    HTTP::Request [requires]
    WWW::RobotRules [requires]
Running make test
  Delayed until after prerequisites
Running make install
  Delayed until after prerequisites
Running install for module 'URI::Escape'
Running make for E/ET/ETHER/URI-1.64.tar.gz
Checksum for /home/grw.kremilek/.cpan/sources/authors/id/E/ET/ETHER/URI-1.64.tar.gz ok

Answer 1

There is a cygwin package for LWP: perl-libwww-perl

If you need HTTPS you should probably install: perl-LWP-Protocol-https

Answer 2

What your cpan output is telling you is that LWP::Simple has 17 prerequisite modules (modules that it requires in order to function) and you must insure that they are all installed before cpan will run the build/test/install for LWP::Simple.

Your cpan configuration can have three possible settings for what to do when cpan detects that prerequisites are not already installed on your system:

1. Automatically install the prerequisites.
2. Ask you whether to install the prerequisites
3. Do neither 1 nor 2, and let you handle them prerequisites manually.

Keep in mind is that many of those 17 could also have prerequisites of their own, so it is often easiest, and usually safe to let cpan auto install the prerequisites.

Unless you see output from cpan that explicitly says that an installation failed, you're doing fine.

---

So given this error report: Warning: Prerequisite 'WWW::RobotRules => 6' for 'MSCHILLI/libwww-perl-6.08.tar.gz' failed when processing 'GAAS/WWW-RobotRules-6.02.tar.gz' with 'make => NO'. Continuing, but chances to succeed are limited. MSCHILLI/libwww-perl-6.08.tar.gz make -- NOT OK Running make test Can't test without successful make Running make install Make had returned bad status, install seems impossible Warning: Prerequisite 'WWW::RobotRules => 6' for 'MSCHILLI/libwww-perl-6.08.tar.gz' failed when processing 'GAAS/WWW-RobotRules-6.02.tar.gz' with 'make => NO'. Continuing, but chances to succeed are limited. MSCHILLI/libwww-perl-6.08.tar.gz make -- NOT OK Running make test Can't test without successful make Running make install Make had returned bad status, install seems impossible

You'll want to try to figure out why WWW:RobotRules failed to install. I'd do it this way:

$ cpan
cpan[1]> look WWW::RobotRules
[The module is downloaded is needed and then a shell is opened into the download directory]
$ perl Makefile.PL
$ make
$ make test
[This is where failure is likely to occur - report the failure messages back to us]

Answer 3

或者只是通过setup.exe安装perl_vendor

Answer 4

please try

cpan App::cpanminus
cpanm LWP::Simple

well, is it work

curl -L http://cpanmin.us | perl - --sudo App::cpanminus

or

cd ~/bin
curl -LO http://xrl.us/cpanm
chmod +x cpanm
# edit shebang if you don't have /usr/bin/env